发明名称 |
VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, VIDEO ENCODING METHOD, AND VIDEO DECODING METHOD |
摘要 |
A compressing unit 6 of a video encoding device selects whether or not to transform and quantize a prediction error signal 5 after a downsampling processing unit 36 performs a reduction transformation on the prediction error signal 5 by using a transforming process determining unit 31, and then creates quantization coefficient data 7a or 7b. When the compressing unit creates the quantization coefficient data 7b, a local decoding unit located behind the compressing unit inverse-quantizes and inverse-transforms the quantization coefficient data 7b, and, after that, an upsampling processing unit performs an enlargement transformation on the quantization coefficient data to create a decoded prediction error signal.
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申请公布号 |
US2012076203(A1) |
申请公布日期 |
2012.03.29 |
申请号 |
US201013322860 |
申请日期 |
2010.05.27 |
申请人 |
SUGIMOTO KAZUO;SEKIGUCHI SHUNICHI;ITANI YUSUKE;MINEZAWA AKIRA;YAMAGISHI SHUICHI;MITSUBISHI ELECTRIC CORPORATION |
发明人 |
SUGIMOTO KAZUO;SEKIGUCHI SHUNICHI;ITANI YUSUKE;MINEZAWA AKIRA;YAMAGISHI SHUICHI |
分类号 |
H04N7/32 |
主分类号 |
H04N7/32 |
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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