Perceptually-adaptive in-band preprocessing for 3-D wavelet video coding

We present a perceptually-adaptive in-band pre- processing scheme for 3-D wavelet video coding. In our scheme, after the original video is decomposed by 2-D spa- tial wavelet transform, a preprocessor is incorporated to re- move 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. Ex- perimental results show that the proposed scheme can effi- ciently enhance the visual quality of coded video with the same objective quality at different bitrates. © 2006 Society of