发明名称 |
Motion-adaptive scanning-line conversion circuit |
摘要 |
A motion-adaptive scanning-line conversion circuit which converts part or the entirety of a first video signal into a second video signal. The circuit includes a data reducing circuit, such as a low pass filter and a decimator, which lowers the sampling frequency of the first video signal to reduce the amount of data in the first video signal. The conversion circuit can also include a detection circuit which detects the vertical edge of a stationary part of a picture represented by the reduced first video signal, and a motion detection circuit which determines the amount of motion of the pixels in the reduced first video signal. Based upon the detection of a vertical edge, a selection circuit selects between an output of an inter-field scanning-line conversion circuit and an intra-field scanning-line conversion circuit operating on the reduced first video signal and the first video signal, respectively.
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申请公布号 |
US5381183(A) |
申请公布日期 |
1995.01.10 |
申请号 |
US19930079509 |
申请日期 |
1993.06.21 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
ISHIZUKA, MITSURU;YAMAGUCHI, NORIYUKI;HASEGAWA, HITOSHI;YAO, MASAHARU;ONISHI, HIROSHI;YAMAMOTO, YUUZI;TSUJI, MASAYUKI |
分类号 |
H04N5/44;H04N7/01;(IPC1-7):H04N7/02 |
主分类号 |
H04N5/44 |
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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