MODE DECISION FOR H.264 BASED ON HUMAN VISUAL SYSTEM(International Workshop on Advanced Image Technology 2007)

概要

論文の詳細を見る
It is really important to use the proper prediction mode in the H.264 encoder, since there are many more modes than the conventional methods such as MPEG-2. Reference software (JM) of H.264 uses squared error as the criterion of distortion for mode decision. However, squared error does not always correspond to the distortion from the viewpoint of subjective quality. In this paper, we investigate a mode decision method based on the human visual system in order to improve H.264 encoder. Our method was implemented on reference software JM (version 10.1) and compared with the original JM. Experiments show that our method can achieve average bit-rate savings of the order of 6.3 to 7.7% compared to the original JM. We confirm that both methods yield the reconstructed images with basically the same subjective image quality.
社団法人電子情報通信学会の論文
2007-01-03