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Motion estimation using low-bit oriented edge image for DCT-based video compression

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4 Author(s)
Xiaohai Qiu ; Inst. of Microelectron., Tsinghua Univ., Beijing, China ; Wujian Zhang ; Hongyi Chen ; Runde Zhou

A novel block-based motion estimation algorithm using a low-bit resolution oriented edge image (LROEI) is proposed. The algorithm produces difference blocks with little texture for DCT coding and enhances the encoding efficiency. Simulation based on a hierarchical subsampling telescope search confirms that the quality of the LROEI is superior to that of luminance image compared with HSTS using an 8 bit luminance image. The operational loads are also reduced to 75 or 50% without quality degradation

Published in:

Electronics Letters  (Volume:37 ,  Issue: 8 )