发明名称 |
Apparatus for re-coding an image signal |
摘要 |
An apparatus for re-coding an image signal, which conducts re-coding processing using a decoded image signal subjected to coding processing as an input image signal, includes: a DCT unit for subjecting the input image signal to a discrete cosine transform (DCT); a DCT coefficient counter for counting a feature amount on a picture basis using a DCT coefficient output from the DCT unit; a picture type detector for detecting a picture type in coding processing in a previous stage, using the feature amount output from the DCT coefficient counter; a coding control portion for determining coding parameters in re-coding in accordance with detection results of the picture type detector; and a coding portion for conducting re-coding processing, using the coding parameters determined by the coding control portion.
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申请公布号 |
US7062102(B2) |
申请公布日期 |
2006.06.13 |
申请号 |
US20010982008 |
申请日期 |
2001.10.19 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
YAMADA YOSHIHISA;KURODA SHINICHI;SUGIMOTO KAZUO;OGAWA FUMINOBU;ASAI KOHTARO |
分类号 |
H04N7/30;G06T9/00;H03M7/30;H04N7/32 |
主分类号 |
H04N7/30 |
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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