Improved Inter Prediction Based on Structural Similarity for H.264
Yang Chun · Chinese Journal of Computers · 2009
H.264/AVC achieves higher compression efficiency by employing multiple modes inter prediction,rate-distortion(RD)optimal mechanism and other new techniques.Distortion metric plays an important role in video compression performance.Structural similarity(SSIM)is a new image quality assessment method,which is more consistent with Human Vision Systems(HVS).This paper proposes to adopt SSIM as the distortion metric in the inter prediction cost functions,named inter prediction method based on SSIM(IPBSS).It is an improved method of the authors' previous work on MEBSS(Motion Estimation Method Based on Structural Similarity).Simulation results show that the proposed IPBSS can averagely save bit rate more than 13% while maintaining almost the same video quality with QP=10,20 and 30.That is a better result than the authors' previous work MEBSS.