发明名称 |
Frame still pictures with no double images |
摘要 |
An image pickup apparatus is provided with a first adder which outputs a sum signal by adding a first luminance signal produced from the signals of odd-numbered lines of a solid-state image sensor and a second luminance signal produced from the signals of even-numbered lines of the solid-state image sensor, a first subtracter which outputs a difference signal by subtracting the first luminance signal from the second luinance signal, a noise reducer which reduces noise in the difference signal, a second adder which outputs a third luminance signal by adding the difference signal with its noise reduced to the sum signal, and a second subtracter which outputs a fourth luminance signal by subtracting the difference signal with its noise reduced from the sum signal. A frame still picture is formed from the third luminance signal and fourth luminance signal.
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申请公布号 |
US5043802(A) |
申请公布日期 |
1991.08.27 |
申请号 |
US19900470720 |
申请日期 |
1990.01.26 |
申请人 |
HITACHI, LTD.;HITACHI VIDEO ENGINEERING, INC. |
发明人 |
TARUMIZU, HIROYUKI;OHTSUBO, HIROYASU;NODA, MASARU;IMAIDE, TAKUYA;KURASHIGE, TOMOYUKI |
分类号 |
H04N5/21;H04N5/217;H04N5/232;H04N5/262;H04N5/272;H04N5/77;H04N9/77;H04N9/79 |
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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