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18 条记录 (耗时 0.011 秒)

    Colour imaging device
    2.
    发明公开
    Colour imaging device 失效
    彩色成像装置

    公开(公告)号：EP0057923A3

    公开(公告)日：1982-10-13

    申请号：EP82100853

    申请日：1982-02-05

    申请人： Hitachi, Ltd.

    发明人： Ozawa, Naoki ,  Nagahara, Shusaku ,  Takahashi, Kenji ,  Umemoto, Masuo ,  Sato, Kazuhiro ,  Izumita, Morishi ,  Akiyama, Toshiyuki ,  Sato, Masanori ,  Kudo, Koji

    IPC分类号： H04N09/04

    CPC分类号： H04N9/04 ,  H04N9/045

    摘要： The present invention relates to a color imaging device which suppresses false color signals appearing in an area where the difference of brightnesses is great in the horizontal or vertical direction. When the correlation between picture elements adjacent in the vertical direction is little and the false signal appears in a boundary part in the vertical direction, the false signal is detected, whereupon a color signal is demodulated by utilizing the correlation between the signals of picture elements in the horizontal direction. On the other hand, when the correlation between picture elements adjacent in the horizonta( direction is little and the false signal appears in a boundary part in the horizontal direction, the false signal is detected, whereupon a color signal is demodulated by utilizing the correlation between the signals of picture clements in the vertical direction. As a result, the moire phenomenon attributed to the false color signals can be conspicuously reduced. While embodiments of the present invention refer to color imaging devices which employ MOS type solid-state imaging devices, the invention is also applicable to an imaging device which employs CCDs and color image pickup tube which separates colors by means of a mosaic color filter.

    Solid-state color imaging device
    3.
    发明公开
    Solid-state color imaging device 失效
    固态彩色成像装置。

    公开(公告)号：EP0057923A2

    公开(公告)日：1982-08-18

    申请号：EP82100853.9

    申请日：1982-02-05

    申请人： Hitachi, Ltd.

    发明人： Ozawa, Naoki ,  Nagahara, Shusaku ,  Takahashi, Kenji ,  Umemoto, Masuo ,  Sato, Kazuhiro ,  Izumita, Morishi ,  Akiyama, Toshiyuki ,  Sato, Masanori ,  Kudo, Koji

    IPC分类号： H04N9/04

    CPC分类号： H04N9/04 ,  H04N9/045

    摘要： The present invention relates to a color imaging device which suppresses false color signals appearing in an area where the difference of brightnesses is great in the horizontal or vertical direction.
    When the correlation between picture elements adjacent in the vertical direction is little and the false signal appears in a boundary part in the vertical direction, the false signal is detected, whereupon a color signal is demodulated by utilizing the correlation between the signals of picture elements in the horizontal direction. On the other hand, when the correlation between picture elements adjacent in the horizonta( direction is little and the false signal appears in a boundary part in the horizontal direction, the false signal is detected, whereupon a color signal is demodulated by utilizing the correlation between the signals of picture clements in the vertical direction.
    As a result, the moire phenomenon attributed to the false color signals can be conspicuously reduced.
    While embodiments of the present invention refer to color imaging devices which employ MOS type solid-state imaging devices, the invention is also applicable to an imaging device which employs CCDs and color image pickup tube which separates colors by means of a mosaic color filter.

    Solid-state imaging apparatus having random noise suppression means
    4.
    发明公开
    Solid-state imaging apparatus having random noise suppression means 失效
    Festkörper-Bildaufnahmevorrichtung mitRauschunterdrückung。

    公开(公告)号：EP0056738A2

    公开(公告)日：1982-07-28

    申请号：EP82300289.4

    申请日：1982-01-20

    申请人： Hitachi, Ltd.

    发明人： Izumita, Morishi ,  Sato, Kazuhiro ,  Akiyama, Toshiyuki ,  Nagahara, Shusaku

    IPC分类号： H04N3/15 ,  H04N5/21

    CPC分类号： H04N5/2173

    摘要： A solid-state imaging apparatus having a two- dimensional array (1) of photosensors such as photo diodes and MOS type FETs through which the photo signals are read out when scanned by pulse generator (2). The apparatus enhances the signal-to-noise ratio of the output signal by reducing or eliminating noise components which mix with the photo signals.
    An analysis of the noise components has revealed a correlation in that a noise component of a certain polarity develops in the opposite polarity again after a period that is shorter than one horizontal scanning period by the duration of one horizontal scanning pulse. With note taken of the correlation, the solid-state imaging apparatus includes a delay circuit (62) and an adder circuit (63) which cancels the noise.

    摘要翻译： 一种具有诸如光电二极管和MOS型FET的光敏二维阵列（1）的固态成像装置，当由脉冲发生器（2）扫描时，通过该固态成像装置读出光信号。 该装置通过减少或消除与光信号混合的噪声分量来增强输出信号的信噪比。 噪声分量的分析已经显示出相关性，即在一个水平扫描脉冲的持续时间之后，在比一个水平扫描周期短的周期之后，再次以相反极性产生噪声分量。 考虑到相关性，固态成像装置包括消除噪声的延迟电路（62）和加法器电路（63）。

    Solid-state imaging device
    5.
    发明公开
    Solid-state imaging device 失效
    固态成像装置。

    公开(公告)号：EP0199129A2

    公开(公告)日：1986-10-29

    申请号：EP86104084.8

    申请日：1986-03-25

    申请人： HITACHI, LTD.

    发明人： Ozawa, Naoki ,  Akiyama, Toshiyuki ,  Satoh, Kazuhiro ,  Nagahara, Syusaku ,  Mimura, Itaru

    IPC分类号： H04N9/04

    CPC分类号： H04N9/045

    摘要： In a solid-state imaging device, a chrominance signal difference in kind from a signal to be obtained at a specified time among a plurality of chrominance signals to be successively obtained from a solid-state image sensor is interpolated with the pertinent chrominance signal obtained directly before the time, or with the pertinent chrominance signal of a picture element corresponding to the signal to be obtained at the time, as found assuming that a subject be achromatic. Which of the signals is to be used for the interpolation is decided according to the difference between the signal to be obtained at the time and a signal of the same chrominance obtained one cycle before the time, or the differences between signals obtained directly before the time and to be obtained directly after the time and the pertinent chrominance signals obtained one cycle before the times of these signals.

    Color imaging apparatus
    7.
    发明公开
    Color imaging apparatus 失效
    彩色成像设备

    公开(公告)号：EP0057021A3

    公开(公告)日：1984-09-12

    申请号：EP82100604

    申请日：1982-01-28

    申请人： Hitachi, Ltd.

    发明人： Takahashi, Kenji ,  Nagahara, Shusaku ,  Izumita, Morishi ,  Sato, Kazuhiro ,  Akiyama, Toshiyuki ,  Ozawa, Naoki

    IPC分类号： H04N09/09

    CPC分类号： H04N9/093

    摘要： This invention relates to a color imaging apparatus having a plurality of image pickup tubes (13, 14, 15) which pick up respective optical images of primary colors decomposed from one optical image, and provides a color imaging apparatus holding a picture of high quality at all times in" such a way that the registration of the images of the respective image pickup tubes is performed even during the operation of the camera. To this end, among image signals, local image signals which satisfy predetermined requisites being the most favorable for the reference signals of the registration are selected by decision circuits (91, 92, 93) and are temporarily stored in a memory (94) so as to be used for the registration. The most favorable requisites of the image are thus achieved, namely no movement is involved, the contour is sharp, and the chroma is low.