视频对象自动分割算法  

Automatic Segmentation Algorithm of Video Object

作　　者：张晓燕[1] 赵荣椿[1] 聂烜[1] 

机构地区：[1]西北工业大学计算机学院,西安710072

出　　处：《计算机工程》2006年第24期159-161,共3页Computer Engineering

基　　金：国家自然科学基金资助项目(60141002);南昌航院测控中心开放实验室基金资助项目(KG200104001)

摘　　要：提出了一种基于小波变换和运动边缘检测的自动视频对象分割方法。该方法对相邻帧分别进行二维小波变换,在小波域进行变化检测和Canny边缘提取,返回空间域后得到鲁棒的相邻帧差分边缘模板。结合当前帧边缘、背景边缘和前一帧的运动边缘,检测出当前帧对象的运动边缘,从而实现对视频对象的提取。通过实验验证,该算法对目标的整体运动和局部形变都有较强的适应性。此外,算法还具有快速、简便、准确性高的特点。An automatic video object segmentation algorithm based on wavelet transform and moving edge detection is proposed. Firstly, the new method makes the two-dimensional wavelet transform for two successive frames. Then change detection method and Canny edge detection are applied in wavelet domain. After merging the different edge masks with the union operation, the robust difference edge map of the inter-frame difference image can be obtained. Combining with the current frame edge map, background edge map and previous frame＇s moving edge, the current frame＇s moving edge can be calculated to extract video object. The algorithm is robust to the entire motion and local deformation of object. The experiment results show that the proposed algorithm is fast, simple and accurate.

关 键 词：视频对象 小波变换 运动边缘 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]