Illumination invariant feature-based motion estimation
Dong Wang, Yue Lu, Zhi-Gang Wang, Wei Wang, Xiao‐Ming Xu · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2001
Illumination variance will reduce the correctness of motion estimation result. To improve ME algorithms robustness, some algorithms have been proposed. All those algorithms are based on the intensity illumination models and many important color information are ignored. Therefore, in this paper, starting from the color reflection model, we propose a novel illumination invariant feature named NACD. Based on NACD, the improved ME algorithm, FC-ME, is designed to deal with the illumination variant image sequences. The experiments indicate that with the acceptable additional operations, the new algorithm's robustness to illumination variance is improved obviously.