Perceptual quality of H.264/AVC deblocking filter

摘要

The H.264/AVC standard defines an optional in-loop deblocking filter. The effect of this filter on subjective video quality is investigated. Filter settings preferred by users are recorded for a group of 82 users across a range of video sequences and coded bitrates. The results indicate two clear groupings of user preferences for low- and medium-activity sequences. There is no clear user preference when the sequence contains high motion and activity. The implications of these results for performance optimisation of H264/AVC CODECs are discussed.