关键词:Canny边缘检测; 特征提取; 区域分割; 特征匹配; 运动估计
Research of electronic image stabilization algorithm based on improvedCanny edge-detection operator
ZHOU Tong, ZOU Li-xin, YOU Jin-zheng, WANG Hai-yan, DU Wei-wei
(School of Physics Science & Technology, Soochow University, Suzhou Jiangsu 215006, China)
Abstract:In order to solve the problem that the feature points easily influenced by the noise, based on the research of the traditional features tracking algorithm, this paper proposed an improved method of Canny edge-detection algorithm for electronic image stabilization. The image edge was detected with improved Canny operator, through dividing edge detected image into many blocks in reason, the largest gray edge points could be selected as the feature points. Proposed the distance invariant criterion to check the feature matching, which could keep global coherence of all local motions and produce the global motion vector by establishing two-dimensional model of movement. Then the parameters of the affine model were calculated based on these points. Finally, Kalman filter was applied to motion compensation to achieve the stability of the video sequences. The results of experiment show that it has favorable stabilities using this algorithm. ......