Modeling temporal coherence for optical flow
Modeling temporal coherence for optical flow
复制标题
光流时间相干性建模
DOI:
10.1109/iccv.2011.6126359
复制
发表时间:
2011
期刊:
影响因子:
--
通讯作者:
H. Zimmer
中科院分区:
文献类型:
--
作者:
S. Volz;A. Bruhn;L. Valgaerts;H. Zimmer
Despite the fact that temporal coherence is undeniably one of the key aspects when processing video data, this concept has hardly been exploited in recent optical flow methods. In this paper, we will present a novel parametrization for multi-frame optical flow computation that naturally enables us to embed the assumption of a temporally coherent spatial flow structure, as well as the assumption that the optical flow is smooth along motion trajectories. While the first assumption is realized by expanding spatial regularization over multiple frames, the second assumption is imposed by two novel first- and second-order trajectorial smoothness terms. With respect to the latter, we investigate an adaptive decision scheme that makes a local (per pixel) or global (per sequence) selection of the most appropriate model possible. Experiments show the clear superiority of our approach when compared to existing strategies for imposing temporal coherence. Moreover, we demonstrate the state-of-the-art performance of our method by achieving Top 3 results at the widely used Middlebury benchmark.
影响因子:
3.2
作者:
Deqing Sun;Erik B. Sudderth;Michael J. Black
通讯作者:
Deqing Sun;Erik B. Sudderth;Michael J. Black
DOI:
--
发表时间:
1995
期刊:
IEEE Trans. Robotics Autom.
影响因子:
--
作者:
K. Chaudhury;R. Mehrotra
通讯作者:
R. Mehrotra