12 March 2013 Macroblock-based adaptive loop filter for all intra-coding
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Abstract
A macroblock-based adaptive loop filter (MBALF) to improve coding gain for all intra-coding was presented. The proposed method adaptively applies the adaptive loop filter for each reconstructed macroblock (MB) in order to reduce the blocking artifact caused by the quantization process. The MBALF can improve coding efficiency of intra-predicted MBs as it is conducted prior to intra-prediction for the subsequent MBs in a slice. We found that the proposed MBALF yields a coding gain of approximately 7.1% compared to the H.264/AVC High profile. In addition, we achieved a coding gain of approximately 8.9%, on average, by combining the conventional in-loop filter, block-based, adaptive filter control.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Hyun-Ho Jo, Jung-Hak Nam, Kwang-Soo Jung, Dong-Gyu Sim, Byeong-Doo Choi, "Macroblock-based adaptive loop filter for all intra-coding," Optical Engineering 52(3), 037403 (12 March 2013). https://doi.org/10.1117/1.OE.52.3.037403
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