%0 Journal Article
%A Jung, Seung-Won
%A Park, Chun-Su
%A Le, Thanh Ha
%A Ko, Sung-Jea
%D 2009
%F SisLab:1920
%I International Society for Optics and Photonics
%J Optical Engineering
%N 11
%P 110502-110502
%T Adaptive quarter-pel motion estimation and motion vector coding algorithm for the H. 264/AVC standard
%U https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1920/
%V 48
%X We present an adaptive quarter-pel (Qpel) motion estimation (ME) method for H.264/AVC. Instead of applying Qpel ME to all macroblocks (MBs), the proposed method selectively performs Qpel ME in an MB level. In order to reduce the bit rate, we also propose a motion vector (MV) encoding technique that adaptively selects a different variable length coding (VLC) table according to the accuracy of the MV. Experimental results show that the proposed method can achieve about 3% average bit rate reduction.