Method and System for Generating a Video Synopsis from Compressed Video Images

摘要

A method and system for generating a video synopsis from compressed video images is disclosed, wherein the compressed video images are generated by dividing each image of the original video into a plurality of macroblocks, wherein each of the macroblocks has the same macroblock size. By analyzing and utilizing characteristics of video compression information to determine the importance of each of the macroblocks, the distribution of the important macroblocks in time and space can be obtained, and a video synopsis of a specified length can be synthesized by arranging the important macroblocks in a particular temporal and spatial order.

主权项

1. A system for generating a video synopsis from a compressed video, comprising:
a decoder unit, for decoding a compressed video to extract decompressed images, wherein the compressed video is formed by compressing a plurality of macroblocks in each image of the original video, wherein each of the plurality of macroblocks has a predetermined macroblock size; an important macroblock analysis unit, for analyzing the encoding information of the compressed video so as to determine if each of the plurality of macroblocks in each image is an important macroblock; and a video synopsis synthesizing unit, for generating a video synopsis by synthesizing the important macroblocks of the images according to the distribution of the important macroblocks in each of the images.