Title :
Adaptive Shot Change Detection Technique for Real-Time Operation on PMP
Author :
Kim, Won-Hee ; Jeong, Yong-Jae ; Moon, Kwang-Seok ; Kim, Jong-Nam
Author_Institution :
Dept. of Electron. Comput. Telecommun. Eng., PuKyong Nat´´l Univ., PuKyong
Abstract :
Shot change detection is the main technique for automatic temporal segmentation of video. Until now, there were little research reports about real-time shot change detection for applying to hardware terminals with low performance such as PMPs (Portable Multimedia Player) and cellular phones. In this paper, we propose an adaptive real-time shot change detection algorithm using sub-sampling, weighting variance, and an adaptive threshold. We use weighting variance of frame difference for dividing feature extraction at a changed frame. We set an adaptive threshold using the average of variance from the next one of a last shot change frame to the previous one of a current frame. In the experiments, we obtained the detection rate of about 94.4% in overall accuracy. We verified real-time operation of shot change detection by implementing our algorithm on the TVUS HM-900 PMP from the company of Homecast. Therefore, our proposing algorithm will be helpful in searching video data on portable media player such as PMPs and cellular phones.
Keywords :
feature extraction; image segmentation; portable instruments; video signal processing; PMP; adaptive shot change detection; automatic temporal video segmentation; cellular phones; feature extraction; portable multimedia player; real-time operation; subsampling; weighting variance; Cameras; Cellular phones; Change detection algorithms; Detection algorithms; Feature extraction; Frequency domain analysis; Gunshot detection systems; Hardware; Histograms; Portable media players;
Conference_Titel :
Convergence and Hybrid Information Technology, 2008. ICCIT '08. Third International Conference on
Conference_Location :
Busan
Print_ISBN :
978-0-7695-3407-7
DOI :
10.1109/ICCIT.2008.322