Spatiotemporal Stereo via Spatiotemporal Quadric Element (Stequel) Matching

Spatiotemporal stereo is concerned with recovery of the 3D structure of a dynamically changing scene from a sequence of stereo images. This paper aims at computing temporally coherent disparity maps without explicit re- covery of motion. We make use of a spatiotemporal volume paradigm and consider extracted features we called stequels as basic matching primitives. The stequel matching principle is developed. Extensive algorithmic evalu- ation with ground truth data incorporated in both local and global corre- spondence paradigms shows the great bene¯t of considering stequels as a matching primitive that naturally incorporates local spatial and temporal structure and its advantages in comparison to alternative ways of enforcing temporal coherence in the stereo estimation procedure.

• Type: Conference
• Year: 2009
• Where: CVPR
• Authors: Mikhail Sizintsev, Richard P. Wildes
• Keywords: Computer Vision, CVPR 2009, Spatiotemporal Stereo