| 摘要 |
In order to describe motion information about the video content more effectively, a motion descriptor generating apparatus by using accumulated motion histogram and a method therefor are provided, in which accumulated motion histograms are generated and motion descriptors are generated by using the accumulated motion histograms, wherein the motion descriptor generating apparatus by using accumulated motion histogram, includes a motion histogram generating unit for respectively generating motion histogram with relation to intensity data and direction data of an input motion, an accumulated motion histogram generating unit for generating two-dimensional accumulated motion histogram in a predetermined sequence by using the motion histogram which is generated in said motion histogram generating unit, and a motion descriptor generating unit for structuring (hierarchy structure) video into certain units according to a change amount of the accumulated motion histogram with the lapse of time, which is generated in said accumulated motion intensity histogram generating unit, and generating a motion descriptor which describes motion characteristics with relation to the respective structured units. <IMAGE> |
