Open AccessAdaptive Prediction Block Filter for Video Coding
Author(s) -
Yoon YeoJin,
Jung SeungWon,
Lee Hahyun,
Kim Hui Yong,
Choi Jin Soo,
Ko SungJea
Publication year - 2012
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.12.0211.0042
Subject(s) - algorithm , block (permutation group theory) , filter (signal processing) , computer science , adaptive filter , coding (social sciences) , kernel adaptive filter , root raised cosine filter , filter design , mathematics , computer vision , statistics , geometry
In this letter, we propose a new prediction block filter that can reduce errors between the original and prediction blocks. The proposed filter adaptively adjusts filter coefficients by using the previously reconstructed adjacent blocks and their prediction blocks. Then, the filter is selectively applied to the current prediction block according to the rate‐distortion optimization. Moreover, since the same filter coefficients can be derived in the decoder, they are not encoded into the bit‐stream. The proposed method achieves a 4.65% bitrate saving on average compared with H.264/AVC.