Share Email Print
cover

Optical Engineering • Open Access

Perceptually-adaptive in-band preprocessing for 3-D wavelet video coding
Author(s): Dongdong Zhang; Wenjun Zhang; Xiaokang Yang

Paper Abstract

We present a perceptually-adaptive in-band preprocessing scheme for 3-D wavelet video coding. In our scheme, after the original video is decomposed by 2-D spatial wavelet transform, a preprocessor is incorporated to remove some visually insignificant wavelet coefficients (noise-like) before the motion compensated temporal filtering of each spatial subband. The preprocessing process is guided by a wavelet domain just-noticeable-distortion profile, which locally adapts to spatial wavelet transform coefficients. Experimental results show that the proposed scheme can efficiently enhance the visual quality of coded video with the same objective quality at different bitrates.

Paper Details

Date Published: 1 March 2006
PDF: 3 pages
Opt. Eng. 45(3) 030504 doi: 10.1117/1.2180771
Published in: Optical Engineering Volume 45, Issue 3
Show Author Affiliations
Dongdong Zhang, Shanghai Jiao Tong Univ. (China)
Wenjun Zhang, Shanghai Jiao Tong Univ. (China)
Xiaokang Yang, Shanghai Jiao Tong Univ. (China)


© SPIE. Terms of Use
Back to Top