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72 results for “PADDLE”
Underwater images collected by a Paddle in St-Leu, Réunion - 2021-01-18
<i>This dataset was collected by a Paddle in St-Leu, Réunion - 2021-01-18.</i> <br> <br><br>Underwater or aerial images collected by scientists or citizens can have a wide variety of use for science, management, or conservation. These images can be annotated and shared to train IA models which can in turn predict the objects on the images. We provide a set of tools (hardware and software) to collect marine data, predict species or habitat, and provide maps.<br> <h2>Image acquisition</h2> This session has 4.45 GB of MP4 files, which were trimmed into 1399 frames (at 2997/1000 fps). <br> The frames are georeferenced. <br> 68.76% of these extracted images are useful and 31.24% are useless, according to predictions made by <a href="jacques-v0.1.0_model-20240513_v20.0" target="_blank">Jacques model</a>. <br> Multilabel predictions have been made on useful frames using <a href="https://huggingface.co/lombardata/DinoVdeau-large-2024_04_03-with_data_aug_batch-size32_epochs150_freeze" target="_blank">DinoVd'eau</a> model. <br> <h2> GPS information: </h2> Base : No Base <br> Device GPS : Emlid Reach M2 <br> Quality of our data - Q1: 0.0 %, Q2: 0.0 %, Q5: 100.0 % <br> <h2> Generic folder structure </h2> YYYYMMDD_COUNTRYCODE-optionalplace_device_session-number <br> ├── DCIM : folder to store videos and photos depending on the media collected. <br> ├── GPS : folder to store any positioning related file. If any kind of correction is possible on files (e.g. Post-Processed Kinematic thanks to rinex data) then the distinction between device data and base data is made. If, on the other hand, only device position data are present and the files cannot be corrected by post-processing techniques (e.g. gpx files), then the distinction between base and device is not made and the files are placed directly at the root of the GPS folder. <br> │ ├── BASE : files coming from rtk station or any static positioning instrument. <br> │ └── DEVICE : files coming from the device. <br> ├── METADATA : folder with general information files about the session. <br> ├── PROCESSED_DATA : contain all the folders needed to store the results of the data processing of the current session. <br> │ ├── BATHY : output folder for bathymetry raw data extracted from mission logs. <br> │ ├── FRAMES : output folder for georeferenced frames extracted from DCIM videos. <br> │ ├── IA : destination folder for image recognition predictions. <br> │ └── PHOTOGRAMMETRY : destination folder for reconstructed models in photogrammetry. <br> └── SENSORS : folder to store files coming from other sources (bathymetry data from the echosounder, log file from the autopilot, mission plan etc.). <br> <h2> Software </h2> All the raw data was processed using our <a href="https://github.com/SeatizenDOI/plancha-workflow/releases/tag/v1.0.3" target="_blank">worflow</a>. <br>All predictions were generated by our <a href="https://github.com/SeatizenDOI/plancha-inference/releases/tag/v1.0.0" target="_blank">inference pipeline</a>. <br>You can find all the necessary scripts to download this data in this <a href="https://github.com/SeatizenDOI/zenodo-tools" target="_blank">repository</a>. <br>Enjoy your data with <a href="https://github.com/SeatizenDOI" target="_blank">SeatizenDOI</a>! <br>
Underwater images collected by a Paddle in St-Leu, Réunion - 2021-02-10
<i>This dataset was collected by a Paddle in St-Leu, Réunion - 2021-02-10.</i> <br> <br><br>Underwater or aerial images collected by scientists or citizens can have a wide variety of use for science, management, or conservation. These images can be annotated and shared to train IA models which can in turn predict the objects on the images. We provide a set of tools (hardware and software) to collect marine data, predict species or habitat, and provide maps.<br> <h2>Image acquisition</h2> This session has 11.24 GB of MP4 files, which were trimmed into 4472 frames (at 2997/1000 fps). <br> The frames are georeferenced. <br> 74.28% of these extracted images are useful and 25.72% are useless, according to predictions made by <a href="jacques-v0.1.0_model-20240513_v20.0" target="_blank">Jacques model</a>. <br> Multilabel predictions have been made on useful frames using <a href="https://huggingface.co/lombardata/DinoVdeau-large-2024_04_03-with_data_aug_batch-size32_epochs150_freeze" target="_blank">DinoVd'eau</a> model. <br> <h2> GPS information: </h2> Base : No Base <br> Device GPS : Emlid Reach M2 <br> Quality of our data - Q1: 0.0 %, Q2: 0.0 %, Q5: 100.0 % <br> <h2> Generic folder structure </h2> YYYYMMDD_COUNTRYCODE-optionalplace_device_session-number <br> ├── DCIM : folder to store videos and photos depending on the media collected. <br> ├── GPS : folder to store any positioning related file. If any kind of correction is possible on files (e.g. Post-Processed Kinematic thanks to rinex data) then the distinction between device data and base data is made. If, on the other hand, only device position data are present and the files cannot be corrected by post-processing techniques (e.g. gpx files), then the distinction between base and device is not made and the files are placed directly at the root of the GPS folder. <br> │ ├── BASE : files coming from rtk station or any static positioning instrument. <br> │ └── DEVICE : files coming from the device. <br> ├── METADATA : folder with general information files about the session. <br> ├── PROCESSED_DATA : contain all the folders needed to store the results of the data processing of the current session. <br> │ ├── BATHY : output folder for bathymetry raw data extracted from mission logs. <br> │ ├── FRAMES : output folder for georeferenced frames extracted from DCIM videos. <br> │ ├── IA : destination folder for image recognition predictions. <br> │ └── PHOTOGRAMMETRY : destination folder for reconstructed models in photogrammetry. <br> └── SENSORS : folder to store files coming from other sources (bathymetry data from the echosounder, log file from the autopilot, mission plan etc.). <br> <h2> Software </h2> All the raw data was processed using our <a href="https://github.com/SeatizenDOI/plancha-workflow/releases/tag/v1.0.3" target="_blank">worflow</a>. <br>All predictions were generated by our <a href="https://github.com/SeatizenDOI/plancha-inference/releases/tag/v1.0.0" target="_blank">inference pipeline</a>. <br>You can find all the necessary scripts to download this data in this <a href="https://github.com/SeatizenDOI/zenodo-tools" target="_blank">repository</a>. <br>Enjoy your data with <a href="https://github.com/SeatizenDOI" target="_blank">SeatizenDOI</a>! <br>
Paddle Club
This appears to be a Tongan Paddle Club or 'Akau tau. Unfortunately, the accession number has rubbed off, so it'll need a little more research to find out how it got into our collections. Source: Objaverse 1.0 / Sketchfab
Figure 46 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 46. Field records of predation on ants by a male Jotus remus at Barrington Tops (1), a female Anasaitis canosa from Greenville County, South Carolina (2), and a male Naphrys pulex, also from Greenville County (3). Although found on a different continent, Naphrys is thought to be more closely related to the Australian Jotus than to the Anasaitis that shares its leaf-litter habitat (Zhang & Maddison 2013). 2-3, Scale = 1 mm.
Figure 45 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 45. Take-off sequence by an adult male Jotus remus based on analysis of high-speed (sequential frames at 1000 FPS), low resolution video frames. Note the paddles on legs III. In this sequence, the spider crouched (1-4), then sprung off of the surface in a near-vertical trajectory, extending all four hind legs in about 3 msec.
Figure 43 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 43. Take-off sequence by an adult male Jotus auripes based on analysis of high-speed (1000 FPS) video frames. In this example, legs IV accelerated the spider to ~50 cm/s, then to ~55 cm/s, and extension of legs III brought this up to ~90 cm/s.
Figure 42 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 42. Take-off sequence by an adult male Jotus auripes based on analysis of high-speed (1000 FPS) video frames. In this example, legs IV accelerated the spider to ~40 cm/s, then to ~60 cm/s, and extension of legs III brought this up to ~90 cm/s.
Figure 41 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 41. Take-off sequence by an adult male Jotus auripes based on analysis of high-speed (1000 FPS) video frames. In this example, legs IV accelerated the spider to ~55 cm/s, then to ~70 cm/s, and extension of legs III brought this up to ~80 cm/s. Since vertical deceleration due to gravity takes place as the spider is accelerating, the actual acceleration due to vertical extension of the legs is somewhat greater than this.
Figure 39 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 39. Take-off sequence by an adult male Jotus auripes based on analysis of high-speed (1000 FPS) video frames. In this example, legs IV accelerated the spider to ~50 cm/s, then to ~60 cm/s, and extension of legs III brought this up to ~80 cm/s.
Figure 37 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 37. Selected composite images showing successive positions of a jumping male Jotus remus (1000 FPS video). The position of the pedicel was plotted with small circles a 1 msec intervals, superimposed on a grid of 1 mm squares (1 mm/msec corresponds to 100 cm/s). The take-off velocity (at position 7 at right side of grid) shown here was ~79 cm/s in a direction of 18.4° above horizontal (horizontal velocity ~75 cm/s, vertical velocity ~25 cm/s). The red line represents a ballistic flight trajectory from the take-off position, and the actual flight path (small circles) approximates this. Like other jumping spiders, Jotus use their dragline during these targeted jumps. Note the reversal of pitch (backward to forward) at the end of this jump.
Figure 38 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 38. Take-off sequence by an adult male Jotus auripes based on analysis of high-speed (1000 FPS) video frames. In this and in subsequent figures (Figures 31-36), four frames are shown to represent [1] the start position when extension of legs IV begins, [2] the start of extension of legs III, as legs IV continue to extend, [3] the end of extension of legs IV, when only legs III are still extending, and [4] the take-off position at which legs III are completely extended. Small circles show the position of a reference position on the spider (identifed by the presence of the lateral band of white scales on the carapace) for each frame, separated by 1 msec. In the background is a 1 mm grid. In this example, the spider accelerated to ~60 cm/s with legs IV, then to ~70 cm/s with legs III and IV, and finally to ~80 cm/s with only legs IV. In this and in subsequent examples the spider crouched down against the surface before extending its legs.
Figure 44 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 44. Take-off sequence by an adult male Jotus remus based on analysis of high-speed (sequential frames at 1000 FPS), low resolution video frames. In this species legs III and IV are also close in length and both contribute to acceleration.
Figure 31 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 31. Sequential frames (25 FPS video, not consecutive) showing a male Jotus remus making a first (1-4) and then a second (5-9) rapid swing of a paddle in front of a female on the opposite side of a leaf, then quickly flipping to the top of the leaf (10-11) to mount that female (12-16). White arrows indicate the position of the paddle during each rapid swing.
Figure 33 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 33. Sequential frames (25 FPS, not consecutive) showing a female Jotus remus on top of a leaf turning to follow the rapid forward and slower rearward movement of the male's paddle (1-10). With the female watching the male raised one paddle (11) to complete a rapid swing in front of the female (12-13), briefly vibrated (14-16), completed a second rapid swing of the paddle (17-18), vibrated (19-20), and finally flipped quickly around to the top of the leaf to join the female (21-24). Both rapid swings of the paddle were completed in little more than half of a second.
Figure 32 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 32. Sequential frames (25 FPS video, not consecutive) showing a male Jotus remus raising one paddle (1-2), quickly moving the paddle forward (3), moving the paddle more slowly through a series of increments to the rear in view of a female beneath the leaf (4-9), vibrating (11-12), making one rapid swing of the paddle (13-14), vibrating (15-18), making a second rapid swing of the paddle (19-21), vibrating (22-26), and finally quickly dashing beneath the leaf to mate with the female (27-30). As also shown in Figure 32, the two rapid swings of the paddle were completed in about half a second.
Figure 28 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 28. Sequential frames (25 FPS video, not consecutive) showing intermittent display of the paddle by a male Jotus remus. Note the attention of the female to the paddle when it was displayed. Paddle display alternated with vibration (3, 7-8).
Figure 27 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 27. Sequential frames (25 FPS video, not consecutive) showing display of the paddle by a male Jotus remus. 2-6, Here both paddles were displayed at the same time.
Figure 26 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 26. Photographs of display by a male Jotus remus. 1, Male on opposite side of a leaf from a female. In this position males engaged in vibration display. 2, Male displaying paddle to female beneath a leaf. 3, Male displaying to a female on top of a leaf. 4-6, 7-10, 11-14, Three sequences of paddle display by males.
Figure 25 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 25. Sequential frames (25 FPS video, not consecutive) showing display of the paddle of one leg III by a male Jotus remus. Note the attention of the female on top of the leaf. At times (5) this display was interrupted and the female turned away.
Figure 8 in Males of a new species of Jotus from Australia wave a paddle-shaped lure to solicit nearby females (Araneae: Salticidae: Euophryini)
Figure 8. The five male types for Jotus remus. The holotype (♂ #5) was lighter with a heavier cover of scales and setae. This may be due to the recent molt of this spider. A broad lateral band extends only from the rear of the eye region to the rear in this species. Other than a general appearance quite similar to that of other Jotus, the prominent prolateral to retrolateral paddle associated with modifications of the metatarsus and tarsus of legs III is distinctive for this unusual species.
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