Efficient Scene Change Detection in MPEG Compressed Video Using Composite Block Averaged Luminance Image Sequence

In video indexing and segmentation, scene change detection is an essential step. However, the problems of inaccuracy and high complexity for existing scene change detection methods are still unsolved. This work presents several advance methods using the partially decoded information from MPEG compressed video. The DC composite image sequence is proposed for scene change detection. DC sequence is widely used for scene change detection in compressed domain. We further improve the efficiency of extraction by eliminating the DC interpolation step. Several advance techniques are used to improve the accuracy and precision of the coarse approximated DC composite image. Experimental results show that our new proposed method can successfully detect both abrupt and gradual scene transition with lower complexity and better performance than the traditional DC sequence methods.