TL;DR: FreeOrbit4D is an effective training-free method for large-angle camera redirection via geometry-complete 4D proxy.
Interactive 4D point cloud reconstruction results. You can rotate, zoom, and play the dynamic sequence. For the best experience, please view on a desktop browser.
Input Video
4D Reconstruction
Output Video
Input Video
4D Reconstruction
Output Video
Input Video
4D Reconstruction
Output Video
Appearance
Editing (Color)
Geometry
Editing (Scaling)
Appearance
Editing (Style)
Geometry
Editing (Composition)
Original
Edited
Original
Edited
Original
Edited
Original
Edited
@inproceedings{cao2026freeorbit4d,
title = {{FreeOrbit4D}: Training-Free Arbitrary Camera Redirection for Monocular
Videos via Foreground-Complete {4D} Reconstruction}
author = {Wei Cao and
Hao Zhang and
Fengrui Tian and
Yulun Wu and
Yingying Li and
Shenlong Wang and
Ning Yu and
Yaoyao Liu},
booktitle = {Proceedings of the Special Interest Group on Computer Graphics and
Interactive Techniques Conference, {SIGGRAPH} Conference Papers 2026,
Los Angeles, CA, USA, July 19-23, 2026},
pages = {65:1--65:12},
publisher = {{ACM}},
year = {2026},
url = {https://doi.org/10.1145/3799902.3811122}
}