Motion Teaser — 4D Trajectory Visualization

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① RGB video + 2D tracks (cut clip)frame 0
② Chronophotography (motion ghost) + 2D tracksall frames composited
chronophoto
③ 3D scene · combined view (GT + prediction + scene point cloud)drag to rotate · scroll to zoom · synced across all panels
③b 3D scene · paper figure (all frames at once, no playback)temporal gradient encodes time · denser raw with more jumpy points
④a · GT
④b · prediction
④c · GT + pred + error
⑤ Initial object PC (RGB)scene PC filtered to points near frame-0 tracked points — dense object surfaces, no background
⑥ Raw RGB framessampled across the clip
time encodingpale & small → vivid & large = time progression
start
end time →