Technical Program

Paper Detail

Paper:	IMDSP-P1.4
Session:	Motion/Disparity Detection and Estimation
Time:	Tuesday, May 16, 10:30 - 12:30
Presentation:	Poster
Topic:	Image and Multidimensional Signal Processing: Motion Detection and Estimation
Title:	Low-Pass Filter Based VLSI Oriented Variable Block Size Motion Estimation Algorithm for H.264
Authors:	Zhenyu Liu, Kitakyushu Foundation for the Advancement of Industry Science and Technology, Japan; Yang Song, Takeshi Ikenaga, Satoshi Goto, Waseda University, Japan
Abstract:	In this paper, a fast motion estimation algorithm, which is friendly to VLSI implementation is proposed. This algorithm has such features: First, through “Haar” low-pass filter based subsampling, the computation complexity at each search position is reduced to about 25% of the original algorithm; Second, one modified motion vector prediction is provided to eliminate the data dependence among sub-partitions in the same macro block. Based on this approach, parallel processing for variable block size motion estimation with integer pixel accuracy can be realized; Third, one “adaptive sub-search window” scheme is proposed to further reduce computation cost and it also can facilitate reference frame data reusing to reduce memory transfer from the external RAM to the on-chip SRAM. The proposed VBSME algorithm is very suitable for parallel VLSI implementation.