发明名称 |
MULTI-MODE VECTOR-BASED IMAGE PROCESSING |
摘要 |
A block (300) of image elements (310) is compressed by identifying a base vector (460) based on normalized feature vectors (312) of the block (300). If a position-determining coordinate (420) of the base vector (460) is present inside a defined selection section (530) of feature vector space (500), the block (300) is compressed according to a default mode and an auxiliary mode to get a default and auxiliary compressed block (600), respectively. The compressed block (600) resulting in smallest compression error is selected. If the auxiliary mode is selected, the position-determining coordinate (420) is mapped to get a mapped coordinate (425) present outside the representable normalization portion (510) of vector space (500). The auxiliary compressed block (600) comprises a representation of this mapped coordinate (425). If the default mode is selected no such coordinate mapping is performed and the default compressed block (600) instead comprises a representation of the non-mirrored coordinate (420). |
申请公布号 |
EP2145317(A1) |
申请公布日期 |
2010.01.20 |
申请号 |
EP20080724321 |
申请日期 |
2008.03.31 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
AKENINE-MOELLER, TOMAS;MUNKBERG, JACOB;STROEM, JACOB |
分类号 |
G06T15/20;G06T9/00 |
主分类号 |
G06T15/20 |
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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