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38,240 results for “Imaging”
IODP Expedition 367 Thin section images
Hard rock and sediment thin section images were acquired using either the JRSO-developed Petrographic Image Capture and Archival Tool (PICAT) imager or (rarely) an upright microscope and a digital camera. Sample images are acquired in unpolarized, polarized, and/or cross-polarized light. Image files are presented compressed by hole.
IODP Expedition 367 Closeup images
Close-up images taken by digital cameras as requested by the science party, typically when the section-half image is not sufficient. Close-up photographs of the areas of interest may be taken from whole-round sections, pieces, or section halves in sediments and rock.
IODP Expedition 367 Scanning electron microscope images
Microscopic images of discrete samples were acquired using a scanning electron microscope (SEM) and captured as image files. These files were uploaded along with a brief description and a record of the microscopic conditions when the image was taken.
IODP Expedition 367 Whole-round core section images
Images of the outside of hard rock whole-round sections were acquired using a linescan imager (Section Half Imaging Logger [SHIL]) and a special holder that allows each 90 degree segment of the outer surface to be positioned properly. The images were taken at a resolution of 20 lines/mm (50 micropixels). JRSO staff take these quadrant images and compile them into a side-by-side rollout photograph of the section. Composite images are available as both JPG and TIF image formats. Individual quadrant images are available as JPG images only through this report; contact the <a href="mailto:database@iodp.tamu.edu">IODP-JRSO Data Librarian</a> if quadrant TIF files (~160 MB) are needed.
IODP Expedition 367 Section-half images
Digital section images were taken of the flat face of split cores on the Section Half Imaging Logger (SHIL) using a linescan camera at a resolution of 20 lines/mm (50 micron pixels). Cores were imaged as soon as possible after splitting to minimize color changes that occur through oxidation and drying. The SHIL produces TIF files as well as reduced-size JPG files. The TIF files are not kept online but users may request them from the <a href="mailto:database@iodp.tamu.edu">IODP-JRSO Data Librarian</a>.
IODP Expedition 367 Core composite images
A digital composite image (PNG) is made for each core comprising core sections scanned using a line-scan camera. The composite layout is equivalent to traditional core table photos. Top left is top of core; color and meter rule references are included.
Improving the accuracy of automated labeling of specimen images datasets via a confidence-based process - Datasets
<p>This dataset contains supporting data for a research project aimed at analysing herbarium samples from the New England area at a large scale with deep learning techniques. Details on the methodology are shared in the acompanying paper (to be published).</p> <p>Content:</p> <ul> <li>dataset600k_withAI.csv : A dataset of over 600.000 herbarium samples with its record metadata and a corresponding AI phenological annotations with matching confidence scores. The entirety of the record headers are provided, extracted directly from the NEVP portal. In addition, the AI labels are defined by the following headers. These 8 columns represent 4 binary classifiers with the Presence/Absence of each 4 traits and corresponding confidence (as a percentage - presence/absence percentages sum to 1).<br> <ul> <li> <table> <tbody> <tr> <td>Flowering</td> <td>Not Flowering</td> <td>Budding</td> <td>Not Budding</td> <td>Fruiting</td> <td>Not Fruiting</td> <td>Reproductive</td> <td>Not Reproductive</td> </tr> </tbody> </table> </li> </ul> </li> </ul> <ul> <li>data_species_with_statuses.csv: A processed dataset summarizing flowering period shift at a species level. Two types of headers are provided. <ul> <li>First metadata concerning the flowering shift and the data used to compute that value: <ul> <li> <table> <tbody> <tr> <td>genus</td> <td>genus_species</td> <td>slope</td> <td>nb_specimens</td> <td>p_value_significance</td> <td>trend_category</td> </tr> <tr> <td>Genus of the species</td> <td>Binomial name of the species</td> <td>Regression slope defining the flowering shift as a slope</td> <td>Number of herbarium specimens used to compute the shift</td> <td>P-value significance of the slope being non-zero. ('Non Significant'/'Significant')</td> <td>Summary of the shift as a binary characteristic ('Earlier'/'Later')</td> </tr> </tbody> </table> </li> </ul> </li> <li>Second, metadata summarizing various traits associated to each species: <ul> <li> <table> <tbody> <tr> <td>lifeform_status</td> <td>native_introduced_status</td> <td>wetland_status</td> <td>seasonality_average</td> <td>seasonality_spread</td> </tr> <tr> <td>Growth form from the USDA PLANTS Database. 'Forb_Herb', 'Shrub_Tree' or 'Vine'</td> <td>'Native'/'Introduced' status from the USDA PLANTS Database.</td> <td> <p>National Wetland Plant List (NWPL) Wetland Indicator Status within the Northcentral and Northeast Region</p> <p>'OBL'/'FACW'/'FAC'/'FACU'/'UPL'</p> </td> <td>A characteristic of the flowering season of the species based on the mean Day of Year of the analysed specimens: if <=180: 'Early', else 'Late'</td> <td>A characteristic of the flowering season of the species based on the spread of the flowering season. Less than 28 days: 'Narrow', larger: 'Large'.</td> </tr> </tbody> </table> <p> </p> </li> </ul> </li> </ul> </li> <li>phylogenetic_tree.tre: The raw data used to generate the visualization of the flowering seasonality character and the detected flowering shift foreach species on a phylogenetic tree.</li> <li>phylogenetic_processed_dataset.csv: The processed dataset resuting from the phylogenetic signal analysis. For each trait, an associated significance binary value is provided.</li> </ul>
Reference images for pytroll
<p>This record holds reference images for pytroll/satpy automated image production testing. The code used to produce the imagery, including code to obtain necessary input data, is included with the Satpy repository and the <a href="https://zenodo.org/records/14056667">Pytroll/Satpy record</a> (from version 0.54).</p> <p>The satellite images included in this record were produced with Satpy. The input data used to produce the images was obtained from various sources, that should be credited where imagery are used. Those are:</p> <table> <tbody> <tr> <td><strong>Pattern</strong></td> <td><strong>Operator</strong></td> </tr> <tr> <td>*GOES*</td> <td>NOAA</td> </tr> </tbody> </table> <p> </p>
Investigating Self-Supervised Image Denoising with Denaturation
<p>The attached zip file conatains image data and Python codes for reproducing the partial results shown in Expt.1, Expt.2, Expt.3, and Expt.4 of the arXiv paper [1]. <br>First, check "readme" file in the zip file for the reproduction. </p>
Supplemental Data from the article "The SmARTR pipeline: a modular workflow for the cinematic rendering of 3D scientific imaging data"
<h1><strong>Please, refer to <a href="https://github.com/MeVisLab/SmARTR-Networks">this GitHub repository</a> for additional info, updates, issue reports, and discussion<br></strong></h1> <p><strong>A collection of configuration files (SmARTR networks) published in "<a href="https://doi.org/10.1016/j.isci.2024.111475">The SmARTR Pipeline: a modular workflow for the cinematic rendering of 3D scientific imaging data</a>", enabling the creation of cinematic (photorealistic) renderings of 3D data in the FREE software <a href="https://www.mevislab.de/download">MeVisLab</a><br></strong></p> <ul> <li>Each folder in the archive contains one or more SmARTR network files, the scan and mask files required for the practical examples detailed in the <a href="https://www.cell.com/cms/10.1016/j.isci.2024.111475/attachment/8d79036b-acb6-4cda-a5ff-f56317691ebc/mmc1.pdf">Supplemental Data</a> of the article, and an additional folder with LUT presets.</li> </ul>
Time-lapse electrical resistivity tomography and seismic reflection imaging of a shallow ground-water aquifer (0-50 m): Mississippi River levee seepage across the Duncan Point bar, Baton Rouge, Louisiana, U.S.A.
<p>The electrical resisitivity raw data files are slightly processed to remove bad data points but can be inverted using tomographic inversion code. </p> <p>The seismic data were assembled in Seismic Unix format, a shortened version of the SEG-Y format (Society of Exploration Geophysicists Exchange Format-Y https: //seg. org/Publications/SEG-Technical-Standards), that has the 3200-byte EBCDIC and 400-byte tape header removed. The data uploaded online (<a href="https://zenodo.org/records/14776025">https://zenodo.org/records/14776025</a>) is a CMP brute-stacked seismic section. </p> <p>During data collection, shotpoint location changed proceeding along a 136-degree azimuth (south-easterly direction), and spaced every 1 m.</p> <p>A total of 48, horizontal-component 28-Hz nominal geophones were placed every one meter and shotpoints were located half-way between geophones. Geophones remained fixed at their locations throughout the survey and so the CMP spacing is nominally 0.5-m but fold varies linearly from a value of 1 from either side of the survey to a central maximum of 24. The seismic source consisted of a partially buried 20-lb steel I-beam struck repeatedly on either side three times by an 8-lb sledge hammer. Data of the same striking polarity were added in-phase in the field. Data with opposing polarity at each shotpoint location were subtracted later to enhance SH-wave data and suppress converted SH-to-P waves.</p> <p>Seismic processing is minimal and consists of standard surface-wave muting, elimination of bad seismic traces, normal moveout, bandpass filtering (between 12 Hz and 50 Hz) and preliminary stacking with trace mixing every 3 CMPs. The data were stacked with a single velocity throughout that ranged from 80 m/s (Vs) at 0.2 s, to 100 m/s at 0.35 s and reached 180 m/s at 0.5 s of two-way traveltime.</p> <p> </p>
Subjective Quality Assessment of Foveated Omnidirectional Images in Virtual Reality (FOIQA)
<p>This study presents a novel dataset called 'Foveated Omnidirectional Image Quality Assessment' (FOIQA) for the subjective quality evaluation of foveated 2D omnidirectional images. This dataset addresses the limitations of existing datasets by leveraging a high-resolution head-mounted display and a gaze-contingent evaluation approach. We provide individual opinion scores, mean opinion scores, and gaze data associated with both the test and reference images. </p>
Dataset for marine vessel detection from Sentinel 2 images in the Finnish coast
<p>This dataset contains annotated marine vessels from 15 different Sentinel-2 product, used for training object detection models for marine vessel detection. The vessels are annotated as bounding boxes, covering also some amount of the wake, if present.</p> <h2>Source data</h2> <div> <div>Individual products used to generate annotations are shown in the following table:</div> </div> <div> </div> <div> <table style="width: 58.034%; height: 411.47px;"> <tbody> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"><strong>Location</strong></td> <td style="width: 79.3617%; height: 19.5938px;"><strong>Product name</strong></td> </tr> <tr style="height: 39.1875px;"> <td style="width: 16.0296%; height: 39.1875px;">Archipelago sea</td> <td style="width: 79.3617%; height: 39.1875px;">S2A_MSIL1C_20220515T100031_N0510_R122_T34VEM_20240617T162344.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL1C_20220619T100029_N0510_R122_T34VEM_20240627T204751.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL1C_20220721T095041_N0510_R079_T34VEM_20240712T224506.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL1C_20220813T095601_N0510_R122_T34VEM_20240717T115958.SAFE</td> </tr> <tr style="height: 39.1875px;"> <td style="width: 16.0296%; height: 39.1875px;">Gulf of Finland</td> <td style="width: 79.3617%; height: 39.1875px;">S2B_MSIL1C_20220606T095029_N0510_R079_T35VLG_20240619T111429.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL1C_20220626T095039_N0510_R079_T35VLG_20240620T013500.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL1C_20220703T094039_N0510_R036_T35VLG_20240702T075354.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL1C_20220721T095041_N0510_R079_T35VLG_20240712T224506.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;">Bothnian Bay</td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL1C_20220627T100611_N0510_R022_T34WFT_20240628T041908.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL1C_20220712T100559_N0510_R022_T34WFT_20240718T033027.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL1C_20220828T095549_N0510_R122_T34WFT_20240708T035231.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;">Bothnian Sea</td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL1C_20210714T100029_N0500_R122_T34VEN_20230224T120043.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL1C_20220619T100029_N0510_R122_T34VEN_20240627T204751.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL1C_20220624T100041_N0510_R122_T34VEN_20240714T110124.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL1C_20220813T095601_N0510_R122_T34VEN_20240717T115958.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;">Kvarken</td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL1C_20220617T100611_N0510_R022_T34VER_20240627T094433.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL1C_20220712T100559_N0510_R022_T34VER_20240718T033027.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL1C_20220826T100611_N0510_R022_T34VER_20240705T062429.SAFE</td> </tr> </tbody> </table> </div> <div> <div> </div> <div>Even though the reference data IDs are for L1C products, L2A products from the same acquisition dates can be used along with the annotations. However, Sen2Cor has been known to produce incorrect reflectance values for water bodies.</div> <div> </div> <div>The corresponding L2A product identifiers are:</div> </div> <div> </div> <div> <table style="width: 58.034%; height: 411.47px;"> <tbody> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"><strong>Location</strong></td> <td style="width: 79.3617%; height: 19.5938px;"><strong>Product name</strong></td> </tr> <tr style="height: 39.1875px;"> <td style="width: 16.0296%; height: 39.1875px;">Archipelago sea</td> <td style="width: 79.3617%; height: 39.1875px;">S2A_MSIL2A_20220515T100031_N0400_R122_T34VEM_20220515T141508.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL2A_20220619T100029_N0510_R122_T34VEM_20240628T011619.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL2A_20220721T095041_N0510_R079_T34VEM_20240713T035445.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL2A_20220813T095601_N0510_R122_T34VEM_20240717T165127.SAFE</td> </tr> <tr style="height: 39.1875px;"> <td style="width: 16.0296%; height: 39.1875px;">Gulf of Finland</td> <td style="width: 79.3617%; height: 39.1875px;">S2B_MSIL2A_20220606T095029_N0510_R079_T35VLG_20240619T162121.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL2A_20220626T095039_N0510_R079_T35VLG_20240620T063951.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL2A_20220703T094039_N0510_R036_T35VLG_20240702T130032.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL2A_20220721T095041_N0510_R079_T35VLG_20240713T035445.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;">Bothnian Bay</td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL2A_20220627T100611_N0510_R022_T34WFT_20240628T095704.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL2A_20220712T100559_N0510_R022_T34WFT_20240718T063657.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL2A_20220828T095549_N0510_R122_T34WFT_20240708T091048.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;">Bothnian Sea</td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL2A_20210714T100029_N0500_R122_T34VEN_20230224T182455.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL2A_20220619T100029_N0510_R122_T34VEN_20240628T011619.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL2A_20220624T100041_N0510_R122_T34VEN_20240714T162313.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL2A_20220813T095601_N0510_R122_T34VEN_20240717T165127.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;">Kvarken</td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL2A_20220617T100611_N0510_R022_T34VER_20240627T130404.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2B_MSIL2A_20220712T100559_N0510_R022_T34VER_20240718T063657.SAFE</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 16.0296%; height: 19.5938px;"> </td> <td style="width: 79.3617%; height: 19.5938px;">S2A_MSIL2A_20220826T100611_N0510_R022_T34VER_20240705T120522.SAFE</td> </tr> </tbody> </table> </div> <div><br> <div>The raw products can be acquired from <a href="https://dataspace.copernicus.eu" target="_blank" rel="noopener">Copernicus Data Space Ecosystem.</a> The products listed above can be unavailable due to e.g. processing level updates and old versions being deleted. In those cases, try searching with the tile identifier and acquisition date in order to get the correct product ID.</div> <br> <h2>Annotations</h2> <br> <div>The annotations are bounding boxes drawn around marine vessels so that some amount of their wakes, if present, are also contained within the boxes. The data are distributed as geopackage files, so that one geopackage corresponds to a single Sentinel-2 tile, and each package has separate layers for individual products as shown below:</div> <br> <blockquote> <div>T34VEM</div> <div>|-20220515</div> <div>|-20220619</div> <div>|-20220721</div> <div>|-20220813</div> </blockquote> <br> <div>All layers have a column <strong>id</strong>, which has the value <strong>b</strong><strong>oat</strong> for all annotations.</div> <br> <div>CRS is EPSG:32634 for all products except for the Gulf of Finland (35VLG), which is in EPSG:32635. This is done in order to have the bounding boxes to be aligned with the pixels in the imagery.</div> <br> <div>As tiles 34VEM and 34VEN have an overlap of 9.5x100 km, 34VEN is not annotated from the overlapping part to prevent data leakage between splits.</div> <br> <h3>Annotation process</h3> The minimum size for an object to be considered as a potential marine vessel was set to 2x2 pixels. Three separate acquisitions for each location were used to detect smallest objects, so that if an object was located at the same place in all images, then it was left unannotated. The data were annotated by two experts. <div> </div> <table style="width: 63.327%; height: 391.876px;"> <tbody> <tr style="height: 39.1875px;"> <td style="width: 72.7285%; height: 39.1875px;"><strong>Product name</strong></td> <td style="width: 23.0224%; height: 39.1875px;"><strong>Number of annotations</strong></td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2A_MSIL1C_20220515T100031_N0510_R122_T34VEM_20240617T162344.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">183</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2B_MSIL1C_20220619T100029_N0510_R122_T34VEM_20240627T204751.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">519</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2A_MSIL1C_20220721T095041_N0510_R079_T34VEM_20240712T224506.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">1518</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2A_MSIL1C_20220813T095601_N0510_R122_T34VEM_20240717T115958.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">1371</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2B_MSIL1C_20220606T095029_N0510_R079_T35VLG_20240619T111429.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">277</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2B_MSIL1C_20220626T095039_N0510_R079_T35VLG_20240620T013500.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">1205</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2B_MSIL1C_20220703T094039_N0510_R036_T35VLG_20240702T075354.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">746</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2A_MSIL1C_20220721T095041_N0510_R079_T35VLG_20240712T224506.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">971</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2A_MSIL1C_20220627T100611_N0510_R022_T34WFT_20240628T041908.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">122</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2B_MSIL1C_20220712T100559_N0510_R022_T34WFT_20240718T033027.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">162</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2B_MSIL1C_20220828T095549_N0510_R122_T34WFT_20240708T035231.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">98</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2B_MSIL1C_20210714T100029_N0500_R122_T34VEN_20230224T120043.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">450</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2B_MSIL1C_20220619T100029_N0510_R122_T34VEN_20240627T204751.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">66</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2A_MSIL1C_20220624T100041_N0510_R122_T34VEN_20240714T110124.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">424</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2A_MSIL1C_20220813T095601_N0510_R122_T34VEN_20240717T115958.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">399</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2A_MSIL1C_20220617T100611_N0510_R022_T34VER_20240627T094433.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">83</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;"> <div> <div>S2B_MSIL1C_20220712T100559_N0510_R022_T34VER_20240718T033027.SAFE</div> </div> </td> <td style="width: 23.0224%; height: 19.5938px;">184</td> </tr> <tr style="height: 19.5938px;"> <td style="width: 72.7285%; height: 19.5938px;">S2A_MSIL1C_20220826T100611_N0510_R022_T34VER_20240705T062429.SAFE</td> <td style="width: 23.0224%; height: 19.5938px;">88</td> </tr> </tbody> </table> <br><br> <h3>Annotation statistics</h3> <br>Sentinel-2 images have spatial resolution of 10 m, so below statistics can be converted to pixel sizes by dividing them by 10 (diameter) or 100 (area).</div> <div> <table> <tbody> <tr> <td> </td> <td><strong>mean</strong></td> <td><strong>min</strong></td> <td><strong>25%</strong></td> <td><strong>50%</strong></td> <td><strong>75%</strong></td> <td><strong>max</strong></td> </tr> <tr> <td><strong>Area (m²)</strong></td> <td>5305.7</td> <td>567.9</td> <td>1629.9</td> <td>2328.2</td> <td>5176.3</td> <td>414795.7</td> </tr> <tr> <td><strong>Diameter (m)</strong></td> <td>92.5</td> <td>33.9</td> <td>57.9</td> <td>69.4</td> <td>108.3</td> <td>913.9</td> </tr> </tbody> </table> <br><br> <div>As most of the annotations cover also most of the wake of the marine vessel, the bounding boxes are significantly larger than a typical boat. There are a few annotations larger than 100 000 m², which are either cruise or cargo ships that are travelling along ordinal directions instead of cardinal directions, instead of e.g. smaller leisure boats.</div> <br> <div>Annotations typically have diameter less than 100 meters, and the largest diameters correspond to similar instances than the largest bounding box areas.</div> <br> <h3>Train-test-split</h3> <br> <div>We used tiles 34VEN and 34VER as the test dataset. For validation, we split the other three tile areas into 5x5 equal sized grid, and used 20 % of the area (i.e 5 cells) for the validation. The same split also makes it possible to do cross-validation.</div> <div> </div> <div> </div> <div> </div> </div> <div> <h3>Post-processing</h3> </div> <div><br> <div>Before evaluating, the predictions for the test set are cleaned using the following steps:</div> <br> <div>1. All prediction whose centroid points are not located on water are discarded. The water mask used contains layers `jarvi` (Lakes), `meri` (Sea) and `virtavesialue` (Rivers as polygon geometry) from the Topographical database by the National Land Survey of Finland. Unfortunately this also discards all points not within the Finnish borders.</div> <div>2. All predictions whose centroid points are located on water rock areas are discarded. The mask is the layer `vesikivikko` (Water rock areas) from the Topographical database.</div> <div>3. All predictions that contain an above water rock within the bounding box are discarded. The mask contains classes `38511`, `38512`, `38513` from the layer `vesikivi` in the Topographical database.</div> <div>4. All predictions that contain a lighthouse or a sector light within the bounding box are discarded. Lighthouses and sector lights come from Väylävirasto data, `ty_njr` class ids are 1, 2, 3, 4, 5, 8</div> <div>5. All predictions that are wind turbines, found in Topographical database layer `tuulivoimalat`</div> <div>6. All predictions that are obviously too large are discarded. The prediction is defined to be "too large" if either of its edges is longer than 750 meters.</div> </div> <div> </div> <div>Model checkpoint for the best performing model is available on Hugging Face platform: <a href="https://huggingface.co/mayrajeo/marine-vessel-detection-yolov8">https://huggingface.co/mayrajeo/marine-vessel-detection-yolo</a><br> <h2>Usage</h2> The simplest way to chip the rasters into suitable format and convert the data to COCO or YOLO formats is to use <a href="https://github.com/mayrajeo/geo2ml">geo2ml</a>. First download the raw mosaics and convert them into GeoTiff files and then use the following to generate the datasets. <div> </div> To generate COCO format dataset run</div> <div> </div> <div> <pre><code>from geo2ml.scripts.data import create_coco_dataset raster_path = '<path_to_raster>' outpath = '<path_to_save_the_dataset>' poly_path = '<path_to_gpkg>' layer = '<date_of_raster>' create_coco_dataset(raster_path=raster_path, polygon_path=poly_path, target_column='id', gpkg_layer=layer, outpath=outpath, save_grid=False, dataset_name='<name_of_dataset>', gridsize_x=320, gridsize_y=320, ann_format='box', min_bbox_area=0)</code></pre> </div> <div><br> <div>To generate YOLO format dataset run</div> <div> <pre><code>from geo2ml.scripts.data import create_yolo_dataset raster_path = '<path_to_raster>' outpath = '<path_to_save_the_dataset>' poly_path = '<path_to_gpkg>' layer = '<date_of_raster>' create_yolo_dataset(raster_path=raster_path, polygon_path=poly_path, target_column='id', gpkg_layer=layer, outpath=outpath, save_grid=False, gridsize_x=320, gridsize_y=320, ann_format='box', min_bbox_area=0)</code></pre> </div> </div>
Long-term live imaging, cell identification and cell tracking in regenerating crustacean legs
<p>Supplementary data and videos for the manuscript 'Long-term live imaging, cell identification and cell tracking in regenerating crustacean legs', by Çevrim,<sup> </sup>Laplace-Builhé,<sup> </sup>Sugawara, Rusciano, Labert, Brocard, Almazán and Averof.</p> <p>The supplementary data include:</p> <p><strong>Supplementary Data 1 (.csv file); Live imaging of regenerating <em>Parhyale</em> legs: image acquisition settings</strong></p> <p>Table with information on the 22 time lapse recordings presented in Figure 3, including image acquisition settings, temperature and duration of the recordings.</p> <p><strong>Supplementary Data 2 (.zip file); Live imaging of regenerated <em>Parhyale</em> legs: maximum projections</strong></p> <p>Compressed folder including maximum projections for each of the 22 time lapse recordings presented in Figure 3. These files were generated by projecting all or a subset of the z slices acquired at each time point. A 20 micron scale bar was added on the first time point. These files serve as a quick way to examine the 22 time lapse recordings.</p> <p><strong>Supplementary Data 3 (22 .tif files); Live imaging of regenerated <em>Parhyale</em> legs: complete datasets</strong></p> <p>Complete image 3D+T hyperstacks for each of the 22 time lapse recordings presented in Figure 3. These files have been generated by concatenating the original image stacks and correcting any image shifts, as described in the Methods section of the paper.</p> <p><strong>Supplementary Data 4 (.zip file); Analysis of trade-offs of imaging resolution and image quality</strong></p> <p>The data used for the analysis of trade-offs in imaging and the results shown in Table 1 are included in this compressed folder. Folders for the original recording (labelled 00), for each of the subsampled datasets (labelled 01 to 05), and for the denoised and deconvoluted datasets each include the corresponding image data and ground truth cell tracking files (.tif, .h5, .xml and .mastodon files) and three sets of cell track predictions (.mastodon files). There are also separate folders containing the Elephant detection and flow model parameters for each set of predictions.</p> <p dir="ltr"><strong>Supplementary Data 4 (.zip file); Analysis of trade-offs of imaging resolution and image quality</strong></p> <p dir="ltr">The data used for the analysis of trade-offs in imaging and the results shown in Table 1 are included in two folders. The folder named Image_and_tracking_data includes the image data (.tif, .h5, .xml), ground truth cell tracking files (.mastodon files) and three sets of cell track predictions (.mastodon files) for the original recording (labelled 00), for each of the subsampled datasets (labelled 01 to 05), and for the denoised and deconvoluted datasets. It also includes separate folders containing the Elephant detection and flow model parameters for each set of predictions. The folder named CTC_tracking_results includes the ground-truth data along with three sets of predictions for detection and tracking for each dataset, following the Cell Tracking Challenge format. For each dataset we include label image files (.tif) for every time point along with tracking results in .txt format, and each results directory (01_RES_*) also contains the evaluation results from the Cell Tracking Challenge Evaluation Software. For a detailed explanation of the folder structure, please refer to the Cell Tracking Challenge documentation.</p> <p><strong>Supplementary Data 5 (.zip file); Tracking the progenitors of spineless-expressing cells in the distal carpus</strong></p> <p>The data used to generate Figure 7 are included in this compressed folder, including the live imaging and cell tracking files (.h5, .xml and .mastodon files) and the image stack of the spineless and futsch HCR and DAPI stainings (.tif file). Channel 2 shows spineless expression (mostly nascent transcripts in nuclei), as well as background signal in epidermal nuclei (possibly due to photoconversion of DAPI, see Karg & Golic 2018, Chromosoma 127: 235-245) and strong autofluorescence in granular cells (also visible in channel 1, depicting futsch HCR).</p> <p><strong>Supplementary Data 6 (.txt file); Sequences of <em>Parhyale</em> genes targeted by the HCR probes</strong></p> <p>The sequences are provided in FASTA format.</p> <p dir="ltr"><strong>Supplementary Data 7 (.zip file); Apoptosis in legs that have not been subjected to live imaging</strong></p> <p dir="ltr">The data used to generate Figure 2 supplement 2 are contained in this compressed folder, including 9 image stacks of T4 and T5 legs fixed and stained with DAPI 3 days post amputation (with apoptotic nuclei marked) and a .txt file containing the apoptotic cell counts.</p> <p dir="ltr"><strong>Supplementary Data 8 (.zip file); Analysis of tracking performance in relation to imaging depth</strong></p> <p dir="ltr">The data used to generate Figure 5 are contained in this compressed folder, including separate folders for the data extracted from the analysis of datasets #1 to #5. Each folder includes data from three replicates (batches 001 to 003), with .csv files listing the z location of nucleus centroids (in µm) for the nuclei that were incorrectly detected by Elephant – either as false positives (FP) or as false negatives (FN) – and the ground truth data (GT). The folder also includes an .xlsx file gathering all the relevant data and the measurements of precision and recall.</p> <p dir="ltr"><strong>Supplementary Data 9 (.zip file); Detecting the temporal pattern of cell divisions in regenerating legs</strong></p> <p dir="ltr">The data used to generate Figure 4 are contained in this compressed folder, including the five image datasets (.tif, .h5, .xml), the detected cell divisions (.mastodon files), and an .xlxs file containing all the cell divisions counts and graphs.</p> <p><strong>Video 1. Time lapse recording of regeneration in a Parhyale T5 leg (dataset li48-t5)</strong></p> <p>Live imaging of nuclei labelled with H2B-mREFruby (maximum projection of z slices 3-10). Proximal parts of the leg are to the left and the amputation site is at the right of the frame. For annotations of different features please refer to Figure 2. Shortly after leg amputation (0 hpa) hemocytes adhere to the wound. By 16 hpa the wound has melanized. Up to ~32 hpa epithelial cells can be seen migrating and accumulating at the wound, below the melanized scab (Figure 2A,B). Around 31 hpa, the leg tissues become detached from the scab (Figure 2C). At 43 hpa, the carpus-propodus boundary first becomes visible, and thereafter many cells can be observed dividing at the distal part of the leg stump (Figure 2D). At 56 hpa, the propodus-dactylus boundary first becomes visible (Figure 2E). At later stages, tissues in more proximal parts of the leg retract, making space for the regenerating leg to grow (Figure 2F,G). After ~90 hpa cell proliferation there is less cell proliferation and cell movements, and the nuclear positions within the tissue become fixed. Scale bars, 20 µm.</p> <p><strong>Video 2. Time lapse recording of regeneration in a Parhyale T5 leg (dataset li36-t5)</strong></p> <p>Live imaging of nuclei labelled with H2B-mREFruby (maximum projection of z slices 3-15). Proximal parts of the leg are to the left and the amputation site is at the right of the frame. The sequence of events is similar to that described in Video 1, but the progression is slower: epithelial migration towards the wound is observed up to 40 hpa, tissues detach from the scab at 65 hpa, and the carpus-propodus and propodus-dactylus boundaries first become visible at 78 and 91 hpa. The tissues making up the carpus and propodus can be seen pulsating from 105 to 145 hpa. Scale bars, 20 µm.</p>
Typhoon radar images
<p>The high-resolution radar reflectivity images from 2010 to 2023. The data is for South China, especially for the Great Bay Area</p>
MEaSUREs ITS_LIVE Sentinel-1 Image-Pair Glacier and Ice Sheet Surface Velocities: Version 2 (Greenland Sample Products)
<p>We provide 21 sample products of MEaSUREs ITS_LIVE Sentinel-1 Image-Pair Glacier and Ice Sheet Surface Velocities: Version 2 in three test regions of Greenland Ice Sheet. The full archive of version 2 ITS_LIVE products (including image pair maps, data cubes and mosaics) from Sentinel-1 as well as other optical sensors (Landsat-4/5/6/7/8 and Sentinel-2) can be found at the ITS_LIVE project website: <a href="https://its-live.jpl.nasa.gov/">https://its-live.jpl.nasa.gov</a>.</p> <p><strong>Sensor</strong>: Sentinel-1A/B</p> <p><strong>Processor</strong>: <a href="https://github.com/isce-framework/isce2">ISCE</a>v2.4.1 (topsApp -> <a href="https://github.com/leiyangleon/Geogrid">Geogrid</a>v1.4.0 -> <a href="https://github.com/nasa-jpl/autoRIFT">autoRIFT</a>v1.4.0)</p> <p><strong>Project</strong>: NASA MEaSUREs project <a href="https://its-live.jpl.nasa.gov">ITS_LIVE</a></p> <p><strong>Region 1</strong> (69.13N, 50.88W; Jakobshavn Isbræ Glacier): 7 ascending image pairs</p> <p><strong>Region 2</strong> (77.61N, 42.79W; central north of interior Greenland): 3 ascending image pairs</p> <p><strong>Region 3</strong> (72.48N, 35.87W; central south of interior Greenland): 10 descending image pairs and 1 ascending image pair</p> <p>This serves as a supplementary dataset for the companion journal article submitted to Earth System Science Data (to appear).</p> <p> </p> <p><strong>Acknowledgement</strong>: This effort was funded by the NASA MEaSUREs program in contribution to the Inter-mission Time Series of Land Ice Velocity and Elevation (ITS_LIVE) project (<a href="https://its-live.jpl.nasa.gov/">https://its-live.jpl.nasa.gov/</a>) and through Alex Gardner’s participation in the NASA NISAR Science Team.</p>
Multi-resolution X-Ray micro-CT images of Bentheimer Sandstones
<p>This dataset consists of multi-resolution X-Ray micro-tomography images of two Bentheimer sandstone rock cores. The rock cores were first used experimentally in [1] with further modelling in [2]. This new dataset is used directly in the publication [3] - preprint available at https://arxiv.org/abs/2111.01270. </p> <p>The original dataset from [1] (of the same rock cores) is hosted on the BGS National Geoscience Data Centre, ID #130625 at dx.doi.org/10.5285/5f899de8-4085-4370-a45e-e613f27e8f1d and there is also a subvolume image dataset, for easier download available on the Digital Rocks Portal, project 229, DOI:10.17612/KT0B-SZ28 at digitalrocksportal.org/projects/229. </p> <p>The images provided herein are from two distinct Bentheimer rock cores -- core 1 and core 2. The cores have diameter, 12.35mm, lengths 73.2mm and 64.7mm, core-averaged porosities of 0.203 and 0.223 and permeabilities of 1.636D and 0.681D for core 1 and 2, respectively. Core 2 has a clear low permeability lamination occurring at 2/3 of the total core length, whereas core 1 has a general fining towards the outlet of the core creating a reduction in porosity [1].</p> <p>The images were acquired with a Zeiss Versa 510 X-Ray CT scanner. We acquired images of two sub volumes from each core, at locations 1/3rd (subvolume 1) and 2/3rds (subvolume 2) of the way along the core length, at resolutions of 2, 6 and 18 microns. We refer to the 2 micron images as high-resolution (HR), the 6 micron images as low-resolution (LR) and the 18 micron images as very-low-resolution (VLR). There are also super-resolution (SR) images created at 2 micron resolution from the LR images, using a deep-learning algorithm. There are also cubic interpolation images created from the LR image - these are labels bicubic. These have a resolution of 2 microns, and size equal to the HR and SR images. Details of the SR and LR Bicubic generation are found in [3]. The following scanning protocols were used for the direct imaging:</p> <p>2 micron images:<br> --We use a 4x microscope objective, an exposure time of 8s, 2x averaged binning, 9001 projections, a scan voltage of 80kV and a power of 7W. Each scan takes approximately 24 hours.</p> <p>6 micron images:<br> --We use a flat panel detector, an exposure time of 0.7s, 10x repeat frames, 1x averaged binning, 2401 projections, a scan voltage of 80kV and a power of 7W. The cone angle is 14.46 degrees and the fan angle is 22.2 degrees. Each scan takes approximately 1 hour.</p> <p>18 micron images:<br> --We use a 0.4x microscope objective, an exposure time of 1s, 10x repeat frames, 1x averaged binning, 2401 projections, a scan voltage of 80kV and a power of 7W. The cone angle is 12.65 degrees and the fan angle is 12.65 degrees. Each scan takes approximately 2 hours.</p> <p>We present 4 sets of the images with different levels of processing. All images are mutual registered to each other. Each image filename has a Core#_Subvol#_resolution identifier, either with the actual resolution (e.g. 6) or the short form (e.g. LR). The following name endings are used</p> <p>(1) - '_16bit_LE.raw'. These are the .raw images of little-endian format. Preceding this filename is also the cubic image side length in voxels, e.g. _75cube. 12 images in total.</p> <p>(2) - '_16bit_LE_normalised.raw'. These are the .raw images of little-endian format with normalised greyscale values following the procedure in [1]. Preceding this filename is also the cubic image side length in voxels, e.g. _75cube. 12 images in total.</p> <p>(3) - 'Core1_Subvol1_HR' etc. These are the .tiff images of (2) above, which have been converted to 8 bit. Includes bicubic interpolation images and SR images, but no 16 micron images, since these were not used in the analysis of [3]. 16 images in total. </p> <p>(4) - 'Core1_Subvol1_HR_filtered' etc. These are the .tiff images from (3) above, which have filtered using non-local means filtering. More details are found in [3]. Note there are no SR images here since they are already essentially filtered, and included in (3) above. 12 images in total.</p> <p><br> <strong>References</strong><br> <br> [1] Jackson, S.J., Lin, Q. and Krevor, S. 2020. Representative Elementary Volumes, Hysteresis, and Heterogeneity in Multiphase Flow from the Pore to Continuum Scale. Water Resources Research, 56(6), e2019WR026396</p> <p>[2] Zahasky, C., Jackson, S.J., Lin, Q., and Krevor, S. 2020. Pore network model predictions of Darcy‐scale multiphase flow heterogeneity validated by experiments. Water Resources Research, 56(6), e e2019WR026708.</p> <p>[3] Jackson, S.J, Niu, Y., Manoorkar, S., Mostaghimi, P. and Armstrong, R.T. 2021. Deep learning of multi-resolution X-Ray micro-CT images for multi-scale modelling. Under review, preprint available at https://arxiv.org/abs/2111.01270 </p>
Events Dataset for Image Sanitization.
<p><strong>Overview</strong></p> <p>Datasets introduced in "Semi-Supervised Feature Embedding for Data Sanitization in Real-World Events"</p> <p>It includes the links for the images that consists the five datasets.</p> <p> </p> <p><strong>NotreDame</strong>: Remarkable partial destruction of the Parisian Cathedral by a fire in 2019.</p> <p><strong>Grenfell</strong>: 2017 tragic fire incident in the Grenfell Tower in London.</p> <p><strong>NationalMuseum</strong>: Total destruction of the National Museum in Brazil by flames in 2018.</p> <p><strong>BangladeshFire</strong>: Fast-moving fire in a district in Dakha, that took place in 2019.</p> <p><strong>BostonMarathon</strong>: 2013 terrorist attack on the traditional Bostonian event.</p> <p> </p> <p><strong>Observations:</strong></p> <p>- We did not publish the links for the positive images for Grenfell dataset due to copyrights reasons.</p> <p>- BostonMarathon and Grenfell negative sets are pictures from Flickr100k dataset</p> <p>- Since BostonMarathon positive samples contains frames from Youtube videos, we published the Youtube video URL and the number of the frame that was extracted.</p> <p>- BostonMarathon positive sample contains augmentation, that are crops which size is half of the original image. In this sense, columns <em>i</em> and <em>j</em> indicates the upper-left pixel of the crop. For instance, if the image is a <em>x </em>b, the crop will be the square between the points: j <em>x</em> i; (j + a/2) <em>x</em> i; j <em>x</em> (i + b/2); and (j + a/2) <em>x</em> (i + b/2).</p> <p> </p> <p><strong>Media Content</strong></p> <p>Due to the terms of use from the social networks, we do not make publicly available the texts, images and videos that were collected (only the links). However, we can provide some extra piece of media content related to one (or more) events by contacting the authors.</p> <p> </p> <p><strong>Funding</strong></p> <p>DéjàVu thematic project, São Paulo Research Foundation (2017/12646-3, 2018/05668-3, and 2020/02241-9)</p> <p> </p>
Lamellar and Bi-Modal Ti-64 Microstructure Images
<p>A collection of 40 optical micrographs of Titanium-64, taken from different regions of a forged billet. The images comprise two morphologies, bi-modal and lamellar. The first 20 images (Ti64_0.jpg - Ti64_19.jpg) correspond to the bi-modal morphology. The remaning 20 images (Ti64_20.jpg - Ti64_39.jpg) corrrespond to lamellar.</p> <p>This dataset was comprised to test machine learning algorithms for classification of microstructures.</p>
Image dataset for the evaluation of a low-cost high-throughput plant phenotyping system
<p>This dataset contains the raw and processed images from a low-cost high-throughput plant phenotyping (HTP) system, as well as the raw and processed images that were manually acquired for comparison. The HTP images were automatically and wirelessly acquired for entire benches of plants with a system composed of a Raspberry Pi and eight GoPro cameras. The entire file system of each GoPro camera was copied directly into a subfolder of finalGoProImages (numbered by camera). The raw HTP images were processed by correcting for lens distortion, computing the "greenness index" for each individual pixel, and filtering out extreme high and low values. These processed HTP images were then saved in the "greenness" subfolder of finalGoProImages. The manually acquired images in the finalDSLR folder each represent an individual plant from one of five time points during the same greenhouse experiment. The raw manually acquired images were processed in the same manner as the raw HTP images by computing the greenness index for each individual pixel and filtering out extreme high and low values. The two tab-delimited text files include the number of green pixels and mean greenness index for each HTP (greennessGoProTable2.txt) and manually acquired (greennessDSLRTable2.txt) image.</p>
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