发明名称 |
CODING DEVICE, DECODING DEVICE, CODING/DECODING SYSTEM, CODING METHOD, AND DECODING METHOD |
摘要 |
A coding device and method, which can suppress degradation of image data while guaranteeing a target compression ratio, a decoding device and method, which decode the data coded by the coding device and method, and a coding/decoding system including the coding device and the decoding device are provided. The coding device includes a predictive value data generator that sequentially generates predictive value data, a predictive error data generator that sequentially generates predictive error data, which is a difference between pixel data and the predictive value data, a coder that sequentially codes the predictive error data to sequentially generate variable-length coded data, and a coding controller that sequentially controls the coder. The coding controller sequentially calculates an accumulated value by accumulating a difference between a code length and a target code length of the variable-length coded data, and controls the coder such that the final accumulated value is 0 or lower. |
申请公布号 |
WO2012176397(A1) |
申请公布日期 |
2012.12.27 |
申请号 |
WO2012JP03776 |
申请日期 |
2012.06.11 |
申请人 |
SHARP KABUSHIKI KAISHA;YAMAGUCHI, MASAYUKI;YAMADA, AKIHISA;NAKAMAE, TAKASHI |
发明人 |
YAMAGUCHI, MASAYUKI;YAMADA, AKIHISA;NAKAMAE, TAKASHI |
分类号 |
H03M7/40;H04N19/126;H04N19/13;H04N19/134;H04N19/136;H04N19/137;H04N19/147;H04N19/154;H04N19/182;H04N19/186;H04N19/189;H04N19/196;H04N19/50;H04N19/91 |
主分类号 |
H03M7/40 |
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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