发明名称 |
Video-signal processing method, program of video-signal processing method, recording medium having recorded thereon program of video-signal processing method, and video-signal processing apparatus |
摘要 |
A video-signal processing method for measuring a noise level of an input video signal includes the steps of detecting an intra-field or intra-frame feature for each region that is set in the input video signal, the intra-field or intra-frame feature representing a noise level in the input video signal within a field or frame; checking the intra-field or intra-frame feature against a noise-free-region threshold, and excluding regions with which the infra-field or intra-frame feature is less than the noise-free-region threshold from subjects of noise-level measurement; and outputting a result of noise-level measurement by statistically processing the intra-field or intra-frame features of regions remaining without being excluded. |
申请公布号 |
US8248537(B2) |
申请公布日期 |
2012.08.21 |
申请号 |
US20070758740 |
申请日期 |
2007.06.06 |
申请人 |
KIMURA SEIJI;OGATA MASAMI;SONY CORPORATION |
发明人 |
KIMURA SEIJI;OGATA MASAMI |
分类号 |
H04N9/64 |
主分类号 |
H04N9/64 |
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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