发明名称 |
IMAGE QUANTIZATION PARAMETER ENCODING METHOD AND IMAGE QUANTIZATION PARAMETER DECODING METHOD |
摘要 |
An image quantization parameter encoder includes: a prediction unit 11 for generating a predicted quantization parameter from a past reconstructed quantization parameter; a computing unit 12 for generating a delta quantization parameter from a quantization parameter and the predicted quantization parameter; and a quantization parameter encoding unit 13 for binary arithmetic encoding a first bin indicating whether or not the delta quantization parameter is significant, one or more other bins indicating an absolute value of the delta quantization parameter and made non-redundant, and a bin indicating whether the delta quantization parameter is positive or negative, in the case where the delta quantization parameter is significant. |
申请公布号 |
EP2733940(A1) |
申请公布日期 |
2014.05.21 |
申请号 |
EP20120810767 |
申请日期 |
2012.06.14 |
申请人 |
NEC CORPORATION |
发明人 |
CHONO, KEIICHI;AOKI, HIROFUMI |
分类号 |
H04N19/13;H04N19/126;H04N19/154;H04N19/169;H04N19/44;H04N19/463;H04N19/91 |
主分类号 |
H04N19/13 |
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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