发明名称 |
DOWN SCALING OF IMAGES |
摘要 |
A Discrete Cosine Transform (DCT) for an entire original sequence is obtained using the DCT coefficients representing the first half and the second half of the original sequence. This is useful when calculation of DCTs of a certain length is supported by hardware and/or software and different size DCTs must be calculated. Example areas of application include still image and video transcoding and scalable image and/or video coding. |
申请公布号 |
EP0966713(A2) |
申请公布日期 |
1999.12.29 |
申请号 |
EP19980909938 |
申请日期 |
1998.03.12 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON |
发明人 |
CHRISTOPOULOS, CHARILAOS;SKODRAS, ATHANASIOS |
分类号 |
G06F17/14;G06T3/40;G09G5/00;G09G5/391;H04N7/26;H04N7/30;(IPC1-7):G06F17/14;G06T9/00 |
主分类号 |
G06F17/14 |
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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