In the IPTV system, when people demand program on TV, they need to know not only the program name, but also know the approximate scenario of program, or choose the actor or style by the favor of themselves.

• 在IPTV系统中,当人们点播电视时,不仅仅想知道电视节目的名字,而且希望能知道节目的大致情节,或者对演员或风格有所选择,这时就需要用到基于内容的视频检索。