发明名称 |
METHOD AND SYSTEM FOR ADAPTIVE INTERPOLATION IN DIGITAL VIDEO CODING |
摘要 |
<p>Disclosed are techniques for adaptive interpolation filtering of luminance and chrominance samples in the context of motion compensation in video encoding or decoding. A two-dimensional interpolation filter of n x m coefficients may be separable, i.e., it may be separated into two one-dimensional filters with m and n coefficients, respectively. The bitstream may include, per video unit and sub-sample position, information indicating whether to use a newly-generated, a cached, or a default filter that may be a separable two-dimensional filter. The information may be structured in a way that takes advantage of the two-dimensional filter being separable. When a newly-generated filter is signalled, the bitstream may contain information pertaining to the characteristics of the newly-generated filter, such as its coefficients. A decoder may fetch this information from the bitstream to create the filters which are applied to samples of the video unit. An encoder may create a bitstream as described.</p> |
申请公布号 |
WO2012071643(A1) |
申请公布日期 |
2012.06.07 |
申请号 |
WO2011CA01227 |
申请日期 |
2011.11.03 |
申请人 |
EBRISK VIDEO INC.;KOSSENTINI, FAOUZI;MAHDI, NADER;BEN AYED, MOHAMED-ALI;GUERMAZI, HASSEN;HOROWITZ, MICHAEL |
发明人 |
KOSSENTINI, FAOUZI;MAHDI, NADER;BEN AYED, MOHAMED-ALI;GUERMAZI, HASSEN;HOROWITZ, MICHAEL |
分类号 |
H04N7/24;H04N7/50 |
主分类号 |
H04N7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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