发明公开
EP2395755A2 VIDEO ENCODING METHOD AND APPARATUS USING LOW-COMPLEXITY FREQUENCY TRANSFORMATION, AND VIDEO DECODING METHOD AND APPARATUS
审中-公开
VIDEOODIERVERFAHREN UND -VORRICHTUNG MIT NIEDERKOMPLEXER FREQUENZUMWANDLUNG SOWIE VIDEOCODIERVERFAHREN UND -VORRICHTUNG
- 专利标题： VIDEO ENCODING METHOD AND APPARATUS USING LOW-COMPLEXITY FREQUENCY TRANSFORMATION, AND VIDEO DECODING METHOD AND APPARATUS
- 专利标题（中）： VIDEOODIERVERFAHREN UND -VORRICHTUNG MIT NIEDERKOMPLEXER FREQUENZUMWANDLUNG SOWIE VIDEOCODIERVERFAHREN UND -VORRICHTUNG
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申请号： EP10738768.0申请日： 2010-02-08
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公开(公告)号： EP2395755A2公开(公告)日： 2011-12-14
- 发明人: CHEON, Min-Su , KIM, Il-Koo , LEE, Tammy
- 申请人： Samsung Electronics Co., Ltd.
- 申请人地址： 416 Maetan-dong Yeongtong-gu Suwon-si, Gyeonggi-do 442-742 KR
- 专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人地址： 416 Maetan-dong Yeongtong-gu Suwon-si, Gyeonggi-do 442-742 KR
- 代理机构： Brandon, Paul Laurence
- 优先权： US150902P 20090209
- 国际公布： WO2010090484 20100812
- 主分类号： H04N7/24
- IPC分类号： H04N7/24 ; H04N7/30
摘要：
A video encoding method using a low-complexity transformation. The method includes receiving image data of an input picture in predetermined data units, generating coefficients of the predetermined data units by performing a low-complexity transformation on the image data, and outputting the generated coefficients. The low-complexity transformation includes at least one from among a selective frequency-domain transformation that uses a transformation basis for a predetermined frequency-domain, a sub data unit transformation that performs a transformation by respectively selecting and applying transformation bases for a plurality of sub data units divided from the image data, and a scale-down transformation that uses a scale-down rectangular transformation basis that is a combination of a rectangular matrix and a square matrix.
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