Cheeklined wrasse · w02_fish8

Oxycheilinus digramma · Labridae · 67% · medium reconstructed model: fair species doubtful
Reviewer: plain dark body; blunt head and lunate tail look more like a parrotfish

Where it comes from

Original video (longest visit, 08:19-08:33), the selected fish boxed
Tracking: real frame + crop + 3D render at the estimated pose, species overlay

3D and 4D model

loading 3D gaussians…
Interactive canonical 3D gaussians (drag to orbit, scroll to zoom). This is the rest pose shared by every frame; the 4D part is the per-frame bending / tail motion shown on the right.
4D: canonical model replaying the learned body bending and tail beat
3D turntable of the canonical model

Poster

poster

Species

Cheeklined wrasse Oxycheilinus digramma Labridae
67.0%
Green birdmouth wrasse Gomphosus caeruleus Labridae
3.2%
Roving coralgrouper Plectropomus pessuliferus Serranidae
3.1%
Fourline wrasse Larabicus quadrilineatus Labridae
3.1%
Tripletail wrasse Cheilinus trilobatus Labridae
3.0%

Family: Labridae 81%, Scaridae 10%, Serranidae 4% · agreement across crops 73% · 64 crops · bioclip-2.5 (hf-hub:imageomics/bioclip-2.5-vith14, open_clip, zero-shot)

Crops used for the species vote

Data and reconstruction

window02:00 – 12:00
visits5: 07:10-07:12, 07:27-07:32, 08:21-08:30, 09:18-09:20, 11:57-11:59
frames (10 fps) detected / kept229 / 206
valid poses (10 fps)207
frames with background plate193
median size92.0 px
30 fps frames / valid poses619 / 570
method4D GS, fins + bending + tail (30 fps)
model shownv1 (gs_final)
iterations4000
gaussians18150
training time22 min
trainer validation PSNR full / masked30.2 / 25.5 dB
trainer validation IoU vs SAM mask0.929
near-fish band PSNR (fins)30.7 dB
production statusdone
visual note (curation)dark elongated parrotfish/wrasse (mid-water)

Diagnostics

Tracklet contact sheet (selection)
Held-out frames: real crop vs 4D render (composited over the plate)
Held-out frames: render on black
Estimated pose: fitted ellipsoid + axes on crops
Frame cleaning: identity / occlusion over time
Frames down-weighted / dropped by the robust trainer

Downloads

point_cloud.ply (canonical 3D gaussians) · poses_refined.json · model.pt (incl. per-frame 4D params) · species.json

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