title: Complex-subband transform for subband-based motion estimation/compensation and coding.
abstract: 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.
authors.affiliation: Inst. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu.
authors.forename: C C
authors.initials: CC
authors.lastname: Lien
authors.forename: C L
authors.initials: CL
authors.lastname: Huang
authors.forename: J G
authors.initials: JG
authors.lastname: Chen