The Joint Collaborative Team on Video Coding (jct-vc) of itu-t wp3/16 and iso/iec jtc 1/sc 29/wg 11 held its second meeting during 21-28 July, 2010 at the itu-t premises in Geneva, ch

JCTVC-B022 [S. Park, J. Sung, J. Young Park, B.-M. Jeon (LG)] TE3: Motion compensation with adaptive warped reference

This document presented experimental results of TE3 subtest 1, which aims to improve temporal prediction performance by using warping motion compensation. This tool uses an additional reference picture which is a warped version of the original reference picture based on a "homography" relation between the current picture and the reference picture. The reported experimental results indicated 0.6% overall bit rate savings under constraint set 1 and 0.4% overall bitrate saving under constraint set 2, as compared with JM 17.0. In the context of an additional group of test video sequences having complex motion, the overall bit rate savings could reportedly be increased up to 12.4% and 3.8% respectively.

Four MVs are encoded to indicate the warp. The actual warp technique is derived from those – some details not fully understood by participants. Substantial complexity impact.