Screening of capsule endoscopy redundant image based on image motion model by block matching

Image redundancy is one of the most crucial issues during the application of capsule endoscopy. For solving this problem, a novel method which combining image motion model and block searching for screening of redundant images is presented. First, the cur-image is divided into blocks, and feature points are extracted from blocks and tracked in pre- and post images. The remaining blocks and the blocks with untracked feature points will be searching in pre- and post-images using block searching method. Promising experimental results show that this method can screen out redundant frames efficiently, and improve the efficiency and accuracy of diagnosis.