Extract 2D OpenPose keyframes from a video and export a skeleton preview + keypoints JSON for Unity/Unreal 2D workflows.
Catwalk keyframes
Original
Keyframes (2D)
"Extract 2D OpenPose keyframes from a video (preview + JSON)."
What you can do with the outputs
This workflow turns a video into a 2D skeleton/keypoints timeline (OpenPose) plus a preview video you can compare side-by-side.
Preview
- Compare original video vs keyframes preview (2D skeleton) side-by-side
- Quickly evaluate tracking quality (pose + face + hands when visible)
- Use as a reference for animators and technical artists
Unity/Unreal 2D pipelines
- Import keypoints JSON into tooling (editor scripts) to drive 2D rigs or constraints
- Create flipbooks / Paper2D previews from the exported keyframes video
- Build authoring tools: pose matching, hitbox guides, timing markers
Limitation: This is 2D only (screen-space keypoints). It is not a 3D mocap solver and is not directly retarget-ready for 3D rigs.