发明名称 |
Video signal processing method and apparatus |
摘要 |
A video signal processing method and apparatus eliminates dot crawls and cross color interferences from a component video signal that has been subjected to Y/C separation. Components at a horizontal frequency of 3.58 MHz and a temporal frequency of 15 Hz are extracted from luminance signal data using a horizontal filter and a time filter. When the absolute value of the component value is equal to or larger than a predetermined value, an output of the horizontal filter is subtracted from the luminance signal data by a subtracter, thereby eliminating dot crawls.
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申请公布号 |
US7012651(B2) |
申请公布日期 |
2006.03.14 |
申请号 |
US20020079465 |
申请日期 |
2002.02.22 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KONDO SATOSHI;ITANI TETSUYA |
分类号 |
H04N5/21;H04N5/445;H04N9/64 |
主分类号 |
H04N5/21 |
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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