By Topic

Quantized Transform-Domain Motion Estimation for SP-Frame Coding in Viewpoint Switching of Multiview Video

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Lai, K.-K. ; Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Kowloon, China ; Yui-Lam Chan ; Wan-Chi Siu,

The brand-new SP-frame in H.264 facilitates drift-free bitstream switching. Notwithstanding the guarantee of seamless switching, the cost is the bulky size of secondary SP-frames. This induces a significant amount of additional space or bandwidth for storage or transmission. In this paper, our investigation reveals that the size of secondary SP-frames is more severe when the correlation between the two bitstreams becomes smaller. Examples include viewpoint switching in multiview video and bitstream switching in single-view video with complex motion. For this reason, a new motion estimation and compensation technique, which is operated in the quantized-transform (QDCT) domain, is designed for coding secondary SP-frames. Our proposed work aims at keeping the secondary SP-frames as small as possible without affecting the size of primary SP-frames by incorporating QDCT-domain motion estimation and compensation in the secondary SP-frame coding. Simulation results show our proposed scheme overwhelmingly outperforms the conventional pixel-domain motion estimation technique. As a consequence, the size of secondary SP-frames can be reduced remarkably, especially in multiview video and single-view video with complex motion.

Published in:

Circuits and Systems for Video Technology, IEEE Transactions on  (Volume:20 ,  Issue: 3 )