发明名称 |
Method for and system of decoding compressed continuous-tone digital image data |
摘要 |
For decoding compressed digital image data of source image, end-of-block (EOB) codes appearing in entropy coded data are utilized to detect a portion of "0" elements in a frequency range coefficient matrix. An inverse orthogonal transform process is fully or partly omitted according to the "0" coefficient distribution.
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申请公布号 |
US5371611(A) |
申请公布日期 |
1994.12.06 |
申请号 |
US19930107016 |
申请日期 |
1993.08.17 |
申请人 |
KOKUSAI DENSHIN DENWA KABUSHIKI KAISHA |
发明人 |
KATO, HISAHARU;ENDO, TOSHIAKI |
分类号 |
G06F17/14;H04N7/30;(IPC1-7):H04N1/40 |
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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