CoaG: Cylinders on a Grid for Coarse 3D Layout Control in Video Generation
We ask how little geometry a person has to draw to control both where people stand and where the camera moves in a generated video. Our answer is a ground plane and one cylinder per person. A user draws a grid on the ground, places one cylinder where each person should stand, moves the cylinders and the camera over 81 frames, and the model renders a photoreal video in which the people occupy the cylinders' positions, move as the cylinders move, and are seen from the drawn camera. Appearance comes from a text prompt and a background reference image; layout and motion come from the geometry. Because no dataset pairs such a signal with video, we build the pairs ourselves: an automatic engine...
| Authors | Zhangsihao Yang, Mengyi Shan |
|---|---|
| Primary category | cs.CV |
| Published | 21 September 2026 |
| Last updated at source | 23 September 2026 |
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