这篇综述回顾了视频目标跟踪方法中常用的目标表示方法，并对目标表示方法进行了系统地分类，对现有的目标跟踪方法进行了分类，并对每类中具有代表性的方法进行了详细描述，分析各类别的优缺点。讨论了目标跟踪的难点以及未来的发展趋势，为相关研究人员了解目标跟踪技术提供参考。-In this article，we review the favorite target representation in target tracking，and classify them systematically，then categorize the target tracking methods used at present on the basis of the object and motion representations，provide detailed descr iptions of representative methods in each category，and examine their pros and cons． Moreover，we discuss the difficulties and future trend of target tracking．