Title :
The effect of digital image stabilization on coding performance [video coding]
Author :
Liang, Chia-Kai ; Peng, Yu-Chun ; Chang, Hung-An ; Su, Che-Chun ; Chen, Homer
Author_Institution :
Graduate Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A digital image stabilization system compensates the image movement caused by hand jiggles and thereby improves the perceptual quality of the image sequence captured by a hand-held digital video camera. In this paper, we apply two recently developed video coding standards, MPEG-4 and H.264, to investigate the effect of image stabilization on video coding. The coding performance of these algorithms on the stabilized image sequence is compared to that on the original image sequence. The results show that image stabilization greatly improves the viewing experience and results in a decrease of bit counts for motion vectors, but the difference in the overall coding performance is minor. Details of the video coding experiments and the image stabilization system are described.
Keywords :
image sequences; motion compensation; motion estimation; stability; video coding; H.264; MPEG-4; block-based motion estimation; digital image sequence stabilization; hand jiggles; hand-held digital video camera; image movement compensation; image sequence perceptual quality; motion compensation; motion vector bit count reduction; video coding performance; Digital cameras; Digital images; Displays; Filters; Image coding; Image sequences; MPEG 4 Standard; Motion estimation; Standards development; Video coding;
Conference_Titel :
Intelligent Multimedia, Video and Speech Processing, 2004. Proceedings of 2004 International Symposium on
Print_ISBN :
0-7803-8687-6
DOI :
10.1109/ISIMP.2004.1434085
