发明名称 |
Mosquito noise reducing apparatus and method |
摘要 |
<p>In order to reduce noise appropriately according to scaling factor and a degree of motion of an image and to suppress degradation in image quality resulting from the noise reduction to a negligible level, a noise reduction control section outputs a noise detection instruction, a noise detection threshold instruction and a filtering mode instruction based on a scale factor output from a scale factor calculating section and a motion detection result output from a motion detecting section. A mosquito noise reducing section and a blocking artifact reducing section in a noise reducing section adaptively conducts an appropriate noise reducing process using noise detection sensitivity and the number of filter taps and a filter coefficient of a smoothing filter according to these instructions. <IMAGE></p> |
申请公布号 |
EP1223760(A2) |
申请公布日期 |
2002.07.17 |
申请号 |
EP20010130490 |
申请日期 |
2001.12.20 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KITAGAWA, MASAO |
分类号 |
G06T5/00;H04N7/26;H04N7/36;(IPC1-7):H04N7/26;H04N7/46;H04N7/50 |
主分类号 |
G06T5/00 |
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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