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Complex-subband transform for subband-based motion estimation/compensation and coding

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3 Author(s)
Cheng-Chang Lien ; Inst. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan ; Chung-Lin Huang ; Jhy-Gau Chen

This paper introduces the complex subband transform (CST) that can be applied for both subband signal decomposition and motion estimation, which are the two major processes in subband-based image sequence coding. In the experiments, we compare the CST-based subband motion compensation with conventional block matching motion compensation, and find that the former has (i) higher peak signal-to-noise ratio (PSNR) of the reconstructed images and (ii) lower prediction error entropy of the motion vectors

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Image Processing, IEEE Transactions on  (Volume:6 ,  Issue: 5 )