Optical flow estimation for multi-channel video sequences

被引:1
作者
Tsai, CJ
Katsaggelos, AK
机构
来源
VISUAL COMMUNICATIONS AND IMAGE PROCESSING '97, PTS 1-2 | 1997年 / 3024卷
关键词
optical flow; disparity; disparity space image; multi-channel video sequences; round-about compatibility;
D O I
10.1117/12.263248
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents a technique for multi-channel optical flow estimation. We combine the brightness constancy constraint with the relationship between optical flow fields and disparity fields in estimating optical flow fields by solving systems of linear equations. In this formulation, the so called round-about compatibility constraint is used to ensure the coherence between optical flow fields and to pin down the tangential components of optical flow vectors which are undiscernible from the first order intensity derivatives. Since disparity information is used to assist optical flow estimation here, a reliable disparity field estimator is required. The disparity fields are recovered using a Disparity Space Image (DSI) technique. We also discuss the sensitivity of this technique when the essential parallel-axes camera configuration assumption is violated. Experiments show that the technique is very promising for practical applications.
引用
收藏
页码:360 / 368
页数:9
相关论文
empty
未找到相关数据