Abstract
This paper proposes a filtering approach based on global motion estimation (GME) and global motion compensation (GMC) as pre-processing and post-processing for video CODEC. For the pre-processing of video CODEC, group-of-pictures (GOP), i.e., basic unit for GMC and reference frames are first defined for an input video sequence. Next, GME and GMC are sequentially performed for every frame in each GOP. Finally, block-based adaptive temporal filter is applied between global motion compensated frames prior to video encoding. For the post-processing at the end of decoder, every decoded frame is inversely motion-compensated by using the transmitted global motion information. The holes which are generated during inverse motion compensation can be filled using the reference frames. Experimental results the proposed algorithm provides higher BD-PSNRs than before-use on H.264 and HEVC platforms.
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