基于直方图的Snake视频对象跟踪算法  

Video Object Tracking Method Based on Snake Model Using Object’s Histogram Information

作　　者：郭礼华[1] 袁晓彤[1] 李建华[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200030

出　　处：《中国图象图形学报（A辑）》2005年第2期197-202,共6页Journal of Image and Graphics

基　　金：国家"863"高科技项目 (2002AA145090)

摘　　要：提出了一种基于直方图的Snake视频跟踪算法。该算法是基于相邻帧中对象在直方图信息上的一致性前提条件下,采用LevelSet曲线演化算法来实现的。由于它在Snake能量函数中引入了全局统计特性———直方图信息,从而克服了过去采用均值、方差或运动矢量等局部特征的Snake跟踪算法中的局限性。通过此算法与基于局部特性的Snake跟踪算法的对比实验可以看出,该算法在实际跟踪效果方面有很好的改善。This paper presents a video tracking algorithm based on Snake model using object’s histogram information, which is designed on the basis of the object’s histogram consistency between the consecutive image frames, and finally implemented by the use of the Level Set method. Because this algorithm uses the histogram information in the Snake energy function, it overcomes the limitation of the previous Snake video tracking algorithms based on the local characters, such as mean, deviation or motion vector. The contrastive experiment between our algorithm and those based on the local characters reveals that our algorithm performs better than those based on local characters.

关 键 词：SNAKE模型 主动轮廓模型 视频对象跟踪 直方图 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]