Patent ID: 7027509
Filing Date: 2006-04-11
Classification: G11B,H04N

Abstract:
1. A hierarchical hybrid shot change detection method for MPEG-compressed video for detecting a shot change, by hierarchically applying a global color histogram based method and a macro block type distribution based method, comprising: detecting a shot change candidate region by using the global color distribution difference among the frames by the color histogram; detecting an abridged shot change candidate region by using the difference of the global color histogram among adjacent I/P, P/P, P/I frames after additionally decoding the P frames existed in the detected candidate region; finding a distribution characteristic of an intra coded block and a reference type and a reference pattern of the each B frame by decoding the B frames in the detected abridged shot change candidate region at the macro block level; and detecting a hard cut occurrence by using the distribution characteristic of the intra coded block and reference type and reference pattern.