发明名称 |
Picture quality improving apparatus capable of reducing deterioration of interpolated signal |
摘要 |
A picture quality improving apparatus includes a multiplexer for multiplexing a digital luminance signal and a digital color difference signal upon reception thereof and outputting a first multiplex signal. A noise reduction circuit reduces a noise component from the first multiplex signal and outputs a second multiplex signal. A motion detector receives the first multiplex signal and detects a picture movement signal included in the first multiplex signal. An interpolation signal generator generates a first interpolation signal based on the digital luminance signal and generates a second interpolation signal based on the second multiplex signal. A signal selector selects one of the first and second interpolation signals from the interpolation signal generator in accordance with the picture movement signal detected by the motion detector.
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申请公布号 |
US4984070(A) |
申请公布日期 |
1991.01.08 |
申请号 |
US19890420372 |
申请日期 |
1989.10.12 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
TANAKA, SEIICHI;KURIHARA, KOUICHI |
分类号 |
H04N5/21;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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