发明名称 |
AN APPROXIMATE INVERSE DISCRETE COSINE TRANSFORM FOR SCALABLE COMPUTATION COMPLEXITY VIDEO AND STILL IMAGE DECODING |
摘要 |
A method of scaling image and video processing computational complexity according to the maximum available quantities of computational includes performing a plurality of data multiplications which processes digital image and video data, the performance of each data multiplication requiring a predetermined quantity of computational resource units; selecting one of the data multiplications; selecting a shift/add-, a shift/subtract or a shift-operation using a data independent value associated with the selected multiplication that requires a quantity of computational resource units which is less than the predetermined quantity of computational resource units required for performing the selected multiplication; and performing the selected multiplication with the selected operation. Also, a decoder which scales video and still image decoding computational complexity with available computational resources according to the above method. |
申请公布号 |
EP1350395(A2) |
申请公布日期 |
2003.10.08 |
申请号 |
EP20010271758 |
申请日期 |
2001.12.05 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
KRISHNAMACHARI, SANTHANA;PENG, SHAOMIN |
分类号 |
G06F9/50;G06F17/14;G06T9/00;H03M7/30;H04N1/41;H04N7/26;H04N7/30;H04N7/50;(IPC1-7):H04N7/50;G06F9/302;G06F9/46;G06F9/318 |
主分类号 |
G06F9/50 |
代理机构 |
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代理人 |
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地址 |
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