The abstraction of an article is a short summary of a document. With the development of video processing

it comes into a similar concept—Video Abstraction. The idea of video abstraction is in very much the same way as text: a short summary of the content of a longer video document. This paper first explains the basic concepts of video abstraction

introduces the applications of video abstraction and classifies video abstraction into video summary and video skimming. Then it emphasizes on the realization techniques of video abstraction

including keyframe extraction and multi-features fusion etc. At last this paper makes some conclusions about video abstraction and prospects for some approaches to it.