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Motion-compensated 3-D subband coding of video

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2 Author(s)
Seung-Jong Choi ; Center for Image Process. Res., Rensselaer Polytech. Inst., Troy, NY, USA ; J. W. Woods

This paper describes a video coding system based on motion-compensated three-dimensional (3-D) subband/wavelet coding (MC-3DSBC), which can overcome the limits of both 3-D SBC and MC prediction-based coding. In this new system, spatio-temporal subbands are generated by MC temporal analysis and a spatial wavelet transform, and then encoded by 3-D subband-finite state scalar quantization (3DSB-FSSQ). The rate allocation from the GOP level to each class of subbands is optimized by utilizing the structural property of MC-3DSBC that additive superposition approximately holds for both rate and distortion. The proposed video coding system is applied to several test video clips. Its performance exceeds that of both a known MPEG-1 implementation and a similar subband MC predictive coder while maintaining modest computational complexity and memory size

Published in:

IEEE Transactions on Image Processing  (Volume:8 ,  Issue: 2 )