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公开(公告)号：EP0228900A3
公开(公告)日：1989-04-19
申请号：EP86310089.7
申请日：1986-12-23
发明人： Takanashi, Itsuo , Nakagaki, Shintaro , Ichimura, Hiroshi , Kuriyama, Takashi , Negishi, Ichiro , Asakura, Tsutou Lilac-House No.301 , Osada, Masaru
CPC分类号： H04N9/077
摘要： A color image pickup device comprises an image pickup tube ll, a color stripe filter lla comprising a plurality of stripe groups each having a plurality of stripes, a filter circuit 40 for extracting a fundamental wave component and a second harmonic wave component from an output of the color stripe filter, and a circuit l3, l4a, l4b, l5, l6 for obtaining a color multiplexed signal by multiplexing color components obtained via the color stripe filter and the filter circuit in a direction perpendicular to the scanning direction for every one stripe group. The color stripe filter is arranged on the image pickup tube so that a longitudinal direction of the stripes of the color stripe filter is substantially parallel to a scanning direction of the image pickup tube. A color demodulated signal is produced from the color multiplexed signal.
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公开(公告)号：EP0228900A2
公开(公告)日：1987-07-15
申请号：EP86310089.7
申请日：1986-12-23
发明人： Takanashi, Itsuo , Nakagaki, Shintaro , Ichimura, Hiroshi , Kuriyama, Takashi , Negishi, Ichiro , Asakura, Tsutou Lilac-House No.301 , Osada, Masaru
CPC分类号： H04N9/077
摘要： A color image pickup device comprises an image pickup tube ll, a color stripe filter lla comprising a plurality of stripe groups each having a plurality of stripes, a filter circuit 40 for extracting a fundamental wave component and a second harmonic wave component from an output of the color stripe filter, and a circuit l3, l4a, l4b, l5, l6 for obtaining a color multiplexed signal by multiplexing color components obtained via the color stripe filter and the filter circuit in a direction perpendicular to the scanning direction for every one stripe group. The color stripe filter is arranged on the image pickup tube so that a longitudinal direction of the stripes of the color stripe filter is substantially parallel to a scanning direction of the image pickup tube. A color demodulated signal is produced from the color multiplexed signal.
摘要翻译： 彩色图像拾取装置包括图像拾取管11，包括多个条纹组的彩色条带滤光器11a，每个条纹组具有多个条纹，滤波器电路40，用于从基本波分量的输出中提取基波分量和二次谐波分量 彩色条形滤波器，以及电路13,44a，14b，15,16，用于通过将与彩色条形滤波器获得的颜色分量和滤波器电路沿垂直于扫描方向的方向复用为每个条带组来获得彩色多路复用信号 。 彩色条形滤光器被布置在图像拾取管上，使得条形滤色器的条纹的纵向方向基本上平行于图像拾取管的扫描方向。 彩色解调信号由彩色复用信号产生。
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公开(公告)号：EP0835030A3
公开(公告)日：2000-03-15
申请号：EP97307811.6
申请日：1997-10-02
申请人： GEC-MARCONI LIMITED
CPC分类号： H04N9/045
摘要： A camera producing colour video outputs may employ an image intensifier 5 and a monochrome CCD sensor 3. The scene is exposed through filters F 3 , F 4 which may each contain stripes of subtractive primary colours alternating with clear regions. The video is decoded using waveforms derived from a memory which records the output of the sensor when imaged on, for example, primary colours such as red and blue, producing trains of pulses which identify the spatial regions of each line corresponding to the spatial areas of the pattem on the sensor produced by the colour filters F 3 , F 4 , in order that actual scenes can be decoded using the stored waveforms, for example using sample and hold devices. A colour interference signal is generated in matrix addition circuitry 10 to produce a luminance signal which has stripe visibility removed from it, permitting high resolution video signals to be obtained.
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公开(公告)号：EP0228900B1
公开(公告)日：1991-05-22
申请号：EP86310089.7
申请日：1986-12-23
发明人： Takanashi, Itsuo , Nakagaki, Shintaro , Ichimura, Hiroshi , Kuriyama, Takashi , Negishi, Ichiro , Asakura, Tsutou Lilac-House No.301 , Osada, Masaru
CPC分类号： H04N9/077
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6.发明公开Color imaging apparatus having a 1:2 frequency ratio between video and reference signals for high S/N color demodulation 失效彩色成像装置具有1频率比：视频信号和参考信号之间具有高的信噪比彩色解调2。
公开(公告)号：EP0179339A2
公开(公告)日：1986-04-30
申请号：EP85112623.5
申请日：1985-10-04
CPC分类号： H04N9/07
摘要： In a single-tube color image pickup apparatus, an optical image is passed through a color stripe filter having recurrent groups of different color stripes to a photoelectrical conversion target, which is scanned by an electron beam to generate a video signal comprising a carrier having a frequency inversely proportional to the intervals at which the recurrent groups of filter strips are arranged. The carrier is modulated in phase with the stripes of each group and in amplitude with the intensity of the optical image. Prior to operation, the target is uniformly illuminated with light of a predetermined color to generate the carrier, which is stored into a field memory. During operation the memory is repeatedly addressed to generate a reference signal. The frequency of the reference signal is converted so that the video signal and the frequency-converted reference signal have a frequency ratio of 1:2 and an opposite phase relationship therebetween. A color demodulator receives these signals to derive a pair of color component signals for coupling to a matrix circuit to which a luminance component is also applied.
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公开(公告)号：EP0735778B1
公开(公告)日：2003-08-20
申请号：EP96301850.2
申请日：1996-03-19
发明人： Edgar, Albert Durr
CPC分类号： H04N9/077 , H04N9/045 , H04N2209/041 , H04N2209/049
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公开(公告)号：EP0735778A3
公开(公告)日：1998-10-14
申请号：EP96301850
申请日：1996-03-19
申请人： IBM
发明人： EDGAR ALBERT DURR
CPC分类号： H04N9/077 , H04N9/045 , H04N2209/041 , H04N2209/049
摘要： An image is captured into a video signal comprised of individual pixels by means of an array sensor with color stripes. When processing the signal from the sensor, the system first interprets the highest frequencies of the signal as an upper sideband of the I color component in such a way that doubles the recoverable bandwidth of color detail. From the upper sideband of the signal, the corresponding lower color sideband is predicted and its effect is then subtracted from the luminance component, from which, in turn, an image is generated. The resulting image thereby produced is thus enhanced in sharpness while at the same time exhibiting a reduction in artifacts. Preferably color is demodulated from such a striped array sensor signal wherein the step is included of demodulating the predominant I color vector from the color carrier utilizing an asymmetric sideband filter.
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