Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
21
datasets available to search
ShareScore release 0.9.0
Dataset results
21 results for “3-D reconstruction”
Processing of 3-D Polygon Mesh Model and Radio Propagation Simulations in a Cave: Surface Reconstruction from Point Cloud, Simplification of the Mesh, and Ray Tracing
<p><strong>ABOUT</strong></p><p>This repository includes mesh data from cave geometry scanning and processing, and radio propagation data from ray tracing simulations.</p><p>The geometry data is obtained with laser scanning in a cave in Slovenija. </p><p>The geometry processing includes (i) 3-D shape reconstruction - surface reconstruction from point cloud data and (ii) simplification - reduction of the geometric complexity of the 3-D mesh model. </p><p>The radio propagation data is obtained using CloudRT [1] ray-tracing simulator. </p><p>The obtained propagation-related quantities include information about the propagation mechanism, interactions with the geometry, received power, delay, azimuth and elevation angles of arrival and departure, and path loss. </p><p> </p><p><strong>AUTHORS</strong></p><p>Teodora Kocevska, Andrej Hrovat, Tomaž Javornik</p><p>Department of Communication Systems</p><p>Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia</p><p>teodora.kocevska@ijs.si</p><p> </p><p><strong>GEOMETRY PROCESSING</strong></p><p>The cave segment used for the propagation calculations is selected from a point cloud obtained in a cave in Litia, Slovenia. The point cloud is obtained with 3-D laser scanning of the environment. The selected segment is approx. 58 m long. Several parameter configurations were considered for 3-D shape reconstruction, including Poisson surface reconstruction with octree depths of 8, 10, and 12. Geometries that represent the cave shape and have different levels of complexity were created and studied. In the simplification process, one and two-stage simplification was explored using the Quadric Edge Collapse Decimation approach. </p><p> </p><p><strong>RADIO SETUP</strong></p><p>The transmitter (Tx) is fixed at the entrance of the cave and the receiver (Rx) is moved along the cave in 40 positions with a step of 1 m.</p><p>Omnidirectional antennas at the Tx and Rx sites and vertical polarization are considered. The antenna is mounted 1.5 m above the ground.</p><p>The start frequency is 3.5 GHz, the end frequency is 3.6 GHz and the step is 10 MHz. Direct propagation and first-order reflection are considered. </p><p>The cave geometry is represented by a triangular mesh, and the material of the cave is wet earth. The material electromagnetic properties are selected according to the specifications presented in [2].</p><p> </p><p><strong>FOLDER STRUCTURE</strong></p><p>The folder structure is:</p><p> - Polygon_Mesh_Models</p><p> <i># 3-D environment models with varying </i>levels<i> of geometry complexity</i></p><p> - Reconstruction_Segmen1_Poisson_Surface_Reconstruction</p><p> - Simplification_Segment1_Quadric_Edge_Collapse_Decimation</p><p> - Propagation_Data</p><p> <i># Propagation quantities of all rays between a transmitter and receiver</i></p><p> - AllRay_PropData</p><p> - PathLoss</p><p> - readme.txt</p><p> - RayTracing_EnvironmentModel</p><p> <i> # Final environment model used for ray tracing simulations</i></p><p> - Cave_MeshModel.json</p><p> - Cave_MeshModel.skb</p><p> - Cave_MeshModel.skp</p><p> - RayTracing_MaterialProperties</p><p> <i># Properties of the materials in the environment</i></p><p> - materials.json</p><p> - materials.mtl</p><p> - readme.txt</p><p> - Cave_Length.txt</p><p> <i># Length between selected locations in the environment</i></p><p> - Cave_Segment1_visual.png</p><p> <i> # Visualization of the environment segment used for propagation calculation</i></p><p> - readme.txt</p><p> <i># Overall description </i></p><p><strong>REFERENCES</strong></p><p>[1] D. He, B. Ai, K. Guan, L. Wang, Z. Zhong, and T. Kürner, "The Design and Applications of High-Performance Ray-Tracing Simulation Platform for 5G and Beyond Wireless Communications: A Tutorial," in IEEE Communications Surveys & Tutorials, vol. 21, no. 1, pp. 10-27, First quarter 2019, doi: 10.1109/COMST.2018.2865724.</p><p>[2] R. sector of International Telecommunication Union (ITU-R), "Effects of building materials and structures on radio wave propagation above about 100 MHz," International Telecommunication Union, ITU-R Recommendation P.2040-2, 2021.</p><p> </p><p><strong>ACKNOWLEDGEMENT</strong></p><p>This work was supported by the Slovenian Research Agency under grant <strong>J2-3048</strong>.</p><p> </p>
Text-fig. 3. "Glossanodon" musceli A – nearly complete specimen NM Pc 02875a; B – caudal skeleton of specimens NM Pc 02871b and NM Pc 02871a (B-1 and B-2 respectively; part and counterpart) and its tentative reconstruction (B-3); C – specimen NM Pc 02873a, general view (C-1) and detail of the head (C-2); D – specimen NM Pc 02874a (the white arrow shows normally developed neural spine on the anterior abdominal vertebra). Abbreviations: ao – antorbitale; d – dentale; epu – epurale; fr – frontale; hp1-6 – hypurals 1-6; io – infraorbitals; mx – maxillare; npu2 – neural spine of second preural vertebra; ph – parhypurale; pu1 – first preural vertebra; pop – preoperculum; psp – parasphenoideum; stu – stegurale; u1 – urale 1; u2 – urale 2. in An Annotated List Of The Oligocene Fish Fauna From The Osíčko Locality (Menilitic Fm.; Moravia, The Czech Republic)
Text-fig. 3. "Glossanodon" musceli A – nearly complete specimen NM Pc 02875a; B – caudal skeleton of specimens NM Pc 02871b and NM Pc 02871a (B-1 and B-2 respectively; part and counterpart) and its tentative reconstruction (B-3); C – specimen NM Pc 02873a, general view (C-1) and detail of the head (C-2); D – specimen NM Pc 02874a (the white arrow shows normally developed neural spine on the anterior abdominal vertebra). Abbreviations: ao – antorbitale; d – dentale; epu – epurale; fr – frontale; hp1-6 – hypurals 1-6; io – infraorbitals; mx – maxillare; npu2 – neural spine of second preural vertebra; ph – parhypurale; pu1 – first preural vertebra; pop – preoperculum; psp – parasphenoideum; stu – stegurale; u1 – urale 1; u2 – urale 2.
Text-fig. 3. Thaumaturus furcatus, scales. a – reconstruction according to Obrhelová (1975); b – specimen NMP Pc 164, scales in situ; c – detail of the postanal part of the specimen NMP Pc 164 with the preserved scale covering. d – specimen NMP Pc 191, scales in situ; e – h isolated scales: e – NMP Pc 185; f – NMP Pc 239, scale 1; g – NMP Pc 239, scale 2; h – NMP Pc 241. Head should be in the left (excluding d). Scale bars represent 5 mm (b, d) 1 mm (c) and 0.5 mm (e-h). in Lepidological Review On The Fish Fauna Of The Kučlín Locality (Upper Eocene, Czech Republic)
Text-fig. 3. Thaumaturus furcatus, scales. a – reconstruction according to Obrhelová (1975); b – specimen NMP Pc 164, scales in situ; c – detail of the postanal part of the specimen NMP Pc 164 with the preserved scale covering. d – specimen NMP Pc 191, scales in situ; e – h isolated scales: e – NMP Pc 185; f – NMP Pc 239, scale 1; g – NMP Pc 239, scale 2; h – NMP Pc 241. Head should be in the left (excluding d). Scale bars represent 5 mm (b, d) 1 mm (c) and 0.5 mm (e-h).
Text-fig. 3. Stutzeliastrobus bohemicus (BAYER) J.KVAČEK, Harcov. a – surface view of bract-scale complex (arrow) and probably aborted seed, No. NM-F 2746 (lectotype), scale bar 1 mm, b – seed with a wing (arrow) NM-F 872, scale bar 1 mm, c – microCT perpendicular section of bract scale complex showing two seeds with wings (arrows), No. NM-F 2746 (lectotype), scale bar 1 mm, d – microCT longitudinal section of bract scale complex showing three seeds, No. NM-F 2746 (lectotype), scale bar 1 mm, e – microCT longitudinal section of bract scale complex with one seed reconstructed showing micropyle (arrow), No. NM-F 2746 (lectotype), scale bar 1 mm, f – isolated seed with a fragment of wing (arrow), No. NM-F 2746 (lectotype), scale bar 1 mm. in Stutzeliastrobus Bohemicus Comb. Nov. - Basal Cupressaceae Conifer From The Cenomanian Of The Bohemian Cretaceous Basin, Central Europe
Text-fig. 3. Stutzeliastrobus bohemicus (BAYER) J.KVAČEK, Harcov. a – surface view of bract-scale complex (arrow) and probably aborted seed, No. NM-F 2746 (lectotype), scale bar 1 mm, b – seed with a wing (arrow) NM-F 872, scale bar 1 mm, c – microCT perpendicular section of bract scale complex showing two seeds with wings (arrows), No. NM-F 2746 (lectotype), scale bar 1 mm, d – microCT longitudinal section of bract scale complex showing three seeds, No. NM-F 2746 (lectotype), scale bar 1 mm, e – microCT longitudinal section of bract scale complex with one seed reconstructed showing micropyle (arrow), No. NM-F 2746 (lectotype), scale bar 1 mm, f – isolated seed with a fragment of wing (arrow), No. NM-F 2746 (lectotype), scale bar 1 mm.
low Cerro Gordo; StL 2, Cerro Gordo sandstone; StL 3, between Cerro Gordo and Chunchullo; StL 4, Chunchullo sandstone; StL 5, bed set between Chunchullo and Tatacoa; StL 6, Tatacoa sandstone; StL 7, bed set below Cerbatana conglomerate; StL 8, Cerbatana conglomerate; StL 9, Monkey beds; StL 10, bed set above Monkey beds; StL 12, bed set above Fish bed; StL 14, bed set below La Venta red beds; StL 15, La Venta red beds; StL 16, bed set between La Venta red beds and El Cardón red beds; StL 17, El Cardón red beds; StL 18, San Francisco sandstone; StL 19, Polonia red beds; D, reconstruction of the head of Neodolodus colombianus based on the 3D model of the almost complete skull of the specimen VPPLT 1696. Abbreviations: Fm, Formation; St m, Stratigraphic meter. Reconstruction of N. colombianus made by Tatsuya Shimura. in New remains of Neotropical bunodont litopterns and the systematics of Megadolodinae (Mammalia: Litopterna)
low Cerro Gordo; StL 2, Cerro Gordo sandstone; StL 3, between Cerro Gordo and Chunchullo; StL 4, Chunchullo sandstone; StL 5, bed set between Chunchullo and Tatacoa; StL 6, Tatacoa sandstone; StL 7, bed set below Cerbatana conglomerate; StL 8, Cerbatana conglomerate; StL 9, Monkey beds; StL 10, bed set above Monkey beds; StL 12, bed set above Fish bed; StL 14, bed set below La Venta red beds; StL 15, La Venta red beds; StL 16, bed set between La Venta red beds and El Cardón red beds; StL 17, El Cardón red beds; StL 18, San Francisco sandstone; StL 19, Polonia red beds; D, reconstruction of the head of Neodolodus colombianus based on the 3D model of the almost complete skull of the specimen VPPLT 1696. Abbreviations: Fm, Formation; St m, Stratigraphic meter. Reconstruction of N. colombianus made by Tatsuya Shimura.
FIGURE 8 in Oziella sibirica (Acari: Eriophyoidea: Phytoptidae), a new eriophyoid mite species described using confocal microscopy, COI barcoding and 3 D surface reconstruction
FIGURE 8. CLSM image of the internal genitalia of Oziella sibirica sp. nov. A. Spermatheca; B. Pre-spermathecal swelling (distal segment of spermathecal tube); C. Proximal segment of spermathecal tube; D. Longitudinal bridge; E. Transverse apodeme; F. Laterodistal fold of transversal apodeme.
FIGURE 6 in Oziella sibirica (Acari: Eriophyoidea: Phytoptidae), a new eriophyoid mite species described using confocal microscopy, COI barcoding and 3 D surface reconstruction
FIGURE 6. Oziella sibirica sp. nov., nymph. A. Dorsal view of the mite; B. Ventral view; C. Prodorsal shield; D. Coxigenital area; E. Right leg I (arrow indicates a spine); F. Right leg II; G. Typical 4/3-rayed empodium; H. Typical 4/4-rayed empodium; I. Abnormal empodium. Scale bar: A & B = 140; C & D = 50; E & F = 45; G, H & I = 12.
FIGURE 1. 3D in Oziella sibirica (Acari: Eriophyoidea: Phytoptidae), a new eriophyoid mite species described using confocal microscopy, COI barcoding and 3 D surface reconstruction
FIGURE 1. 3D model of Oziella sibirica sp. nov. prodorsal shield (the same female as Fig. 2C). A. Gray scale prodorsal shield, B. Colourised prodorsal shield (notifications of lines follows that of Amrine et al. 1994 & Amrine et al. 2003; admedian lines colourised in red, additional line between admedian and submedian-2 line colourised in black). Scale bar A & B = 30 mkm. Note: setae ve and c1 are short on images A & B because only proximal parts of the setae of eriophyoid mites can be observed on CLSM images using blue laser, 405 nm (Chetverikov 2012b).
FIGURE 2 in Oziella sibirica (Acari: Eriophyoidea: Phytoptidae), a new eriophyoid mite species described using confocal microscopy, COI barcoding and 3 D surface reconstruction
FIGURE 2. Variation of the prodorsal shield design among four females of Oziella sibirica sp. nov. (black & white inverted CLSM images). Admedian lines colourised in red (A & D), additional lines in green (B) and red (C; the same female as in Fig. 2A & 2B). Scale bar = 30 mkm.
FIGURE 4 in Oziella sibirica (Acari: Eriophyoidea: Phytoptidae), a new eriophyoid mite species described using confocal microscopy, COI barcoding and 3 D surface reconstruction
FIGURE 4. Microphotographs under light phase contrast microscopy (A & B) and CLSM (C & D) of Oziella sibirica sp. nov. A. Coxigenital region; B. Female prodorsal shield (arrows indicate the eye-like structures); C. Position and view of internal genitalia inside female; D. Epiandrium on male venter. Scale bar A, B, C, D = 20 mkm.
FIGURE 9 in Oziella sibirica (Acari: Eriophyoidea: Phytoptidae), a new eriophyoid mite species described using confocal microscopy, COI barcoding and 3 D surface reconstruction
FIGURE 9. Morphometrics of the internal genitalia of Oziella sibirica sp. nov. Length (A–B) and width (C–D) of spermatheca; length (E–F) and width (G–H) of prespermathecal swelling (distal segment of spermathecal tube); length (I–J) of proximal segment of spermathecal tube; length (J–K) of longitudinal bridge; half-length (K–L) of genital apodeme; maximal distance between left and right parts of transversal apodeme (L–M).
FIGURE 3 in Oziella sibirica (Acari: Eriophyoidea: Phytoptidae), a new eriophyoid mite species described using confocal microscopy, COI barcoding and 3 D surface reconstruction
FIGURE 3. Oziella sibirica sp. nov., female. A. Ventral view of the mite, B. Coxigenital area, C. Female prodorsal shield; D. Female internal genitalia, E. Empodium; F. Epiandrium, G. Leg I (arrow indicates a spine), H. Leg II. Scale bar: A = 130; B & C = 45; D = 35; E = 15; F = 45; G & H = 35.
FIGURE 5 in Oziella sibirica (Acari: Eriophyoidea: Phytoptidae), a new eriophyoid mite species described using confocal microscopy, COI barcoding and 3 D surface reconstruction
FIGURE 5. Oziella sibirica sp. nov., larva. A. Ventral view; B. Prodorsal shield and anterior part of opisthosoma; C. Coxisternal area and anteroventral region of opisthosoma; D. Right leg I, dorsal view; E. Right leg II, dorsal view; F. Typical 4/3-rayed empodium. Scale bar: A = 100; B & C = 45; D & E = 35; F = 10.
3-D Imaging Assessment of Scar Formation and Would Healing in Fat Grafted vs Non-Fat Grafted Facial Reconstruction Wound Sites
ClinicalTrials.gov study NCT01750424. IPD Sharing: Not stated. Countries: 1. Publications: 10.
Figure 3 from: Saba M, Haelewaters D, Pfister DH, Khalid AN (2020) New species of Pseudosperma (Agaricales, Inocybaceae) from Pakistan revealed by morphology and multi-locus phylogenetic reconstruction. MycoKeys 69: 1-31. https://doi.org/10.3897/mycokeys.69.33563
Figure 3 The best-scoring ML tree (-lnL = 5704.951) of Rimosae s.s. subclade A, complemented with recently-described species within sect. Rimosae s.s., reconstructed from the nrLSU dataset. ML bootstraps (if ≥ 70) are presented above or in front of the branch leading to each node. Thick branches have maximum support (ML BS = 100). Newly-described species are in boldface.
Simplified 3-D reconstruction of Oikopleura albicans trunk
<p>Simplified reconstruction of the trunk of <em>Oikopleura albicans</em> is presented as a 3-D animation with the emphasis on the digestive tract, brain and endostyle. Note the spiracles on the floor of the pharynx.</p>
FIGURE 7 in Oziella sibirica (Acari: Eriophyoidea: Phytoptidae), a new eriophyoid mite species described using confocal microscopy, COI barcoding and 3 D surface reconstruction
FIGURE 7. Variation found in the internal genitalia of Oziella sibirica sp. nov. specimens.
Text-fig. 4. Properca prisca, scales. a – specimen IGP 2011/6b, scale 1; b – specimen IGP 2011/6b, scale 2, c – specimen IGP 2011/6b, scale 3; d – specimen IGP 2011/4a; e – specimen IGP 2011/7; f – specimen IGP 2011/1; g – specimen IGP 2011/8, scale 1; h – specimen IGP 2011/8, scale 3; i – specimen IGP 2011/8, scale 2; j – specimen IGP 2011/5a, scale 1; k – specimen IGP 2011/2a; l – specimen IGP 2011/3a; m – specimen IGP 2011/6b, group of scales; n – specimen IGP 2011/5a, group of scales; o – specimen IGP 2011/8, group of scales; p – specimen IGP 2011/7, lateral line scale; q – reconstruction of the running of the lateral line according to the NMP Pc 68; r-s – reconstruction of the scales according to Obrhelová (1976); t-z – reconstruction of the scales according to Obrhelová (1971). Head should be in the left. Scale bars represent 0.5 mm. in Lepidological Review On The Fish Fauna Of The Kučlín Locality (Upper Eocene, Czech Republic)
Text-fig. 4. Properca prisca, scales. a – specimen IGP 2011/6b, scale 1; b – specimen IGP 2011/6b, scale 2, c – specimen IGP 2011/6b, scale 3; d – specimen IGP 2011/4a; e – specimen IGP 2011/7; f – specimen IGP 2011/1; g – specimen IGP 2011/8, scale 1; h – specimen IGP 2011/8, scale 3; i – specimen IGP 2011/8, scale 2; j – specimen IGP 2011/5a, scale 1; k – specimen IGP 2011/2a; l – specimen IGP 2011/3a; m – specimen IGP 2011/6b, group of scales; n – specimen IGP 2011/5a, group of scales; o – specimen IGP 2011/8, group of scales; p – specimen IGP 2011/7, lateral line scale; q – reconstruction of the running of the lateral line according to the NMP Pc 68; r-s – reconstruction of the scales according to Obrhelová (1976); t-z – reconstruction of the scales according to Obrhelová (1971). Head should be in the left. Scale bars represent 0.5 mm.
A 3-D Reconstruction Strategy for Small Solar Bodies with Single Flyby Spaceborne Radar
<p>Small solar body exploration is of great scientific significance in understanding the evolution of the solar system. However, most of the small bodies are far away from the earth, and the small size, weak gravity, irregular shape, and high speed rotation further increase the difficulty of exploring a small body. In order to characterize as many targets as possible in one mission, we propose a novel 3-D imaging strategy to reconstruct 3-D shape of the rapidly spinning small bodies in flyby trajectories. Firstly, we establish an observation model and analyze the imaging geometry and the characteristics of the signal. Then we describe in detail of the reconstruction procedure, and propose a modified algorithm to improve the imaging quality. Finally, we present the simulated results to validate our proposed method.</p> <p><a href="https://zenodo.org/api/files/b6d2b3fc-96ae-47af-9289-b369c031996a/ryugu.stl?versionId=1c758c95-a883-4e16-afae-b44461e0d6e8">ryugu.stl</a> is the scaling model for 3-D shape simulation. </p> <p><a href="https://zenodo.org/api/files/b6d2b3fc-96ae-47af-9289-b369c031996a/echodata.csv?versionId=102b451a-f208-4945-957a-04d1d9db908b">echodata.csv</a> are the echo data generated in forward simulation.</p> <p><a href="https://zenodo.org/api/files/b6d2b3fc-96ae-47af-9289-b369c031996a/recdata.zip?versionId=0fa554ad-b24b-48d7-b3df-f61083a07e1e">recdata.zip</a> are the original data of reconstructed results generated by the proposed algorithm.</p> <p> </p>
Free Flap Breast Reconstruction Using Virtual Surgical Planning and 3-D Modeling
ClinicalTrials.gov study NCT03949491. IPD Sharing: YES. Countries: 1. Publications: 0.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.