Learning filters for enhancing the quality of block coded still and video images
摘要
The invention relates to a method and an apparatus for reducing blocking artifacts in block-wise coding of still and video images. A learning filter generator is provided at the image encoder for generating a set of filters and associated filtering rules for filtering cross-boundary image patterns based on representative original and decoded training images using a supervised machine learning algorithm. An adaptive filter at the image decoder receives the generated filters and associated filtering rules and performs locally adaptive filtering in accordance with the received filtering rules.
申请公布号
US8204128(B2)
申请公布日期
2012.06.19
申请号
US20080184671
申请日期
2008.08.01
申请人
HER MAJESTY THE QUEEN IN RIGHT OF CANADA, AS REPRESENTED BY THE MINISTER OF INDUSTRY, THROUGH THE COMMUNICATIONS RESEARCH CENTRE CANADA
发明人
HUCHET GREGORY;CHOUINARD JEAN-YVES;WANG DEMIN;VINCENT ANDRE