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    Color image sensing apparatus and method of expanding dynamic range
    53.
    发明公开
    Color image sensing apparatus and method of expanding dynamic range 失效
    用于增加的动态范围的彩色图像拾取装置和方法

    公开(公告)号：EP0713342A3

    公开(公告)日：1996-09-04

    申请号：EP95308252.6

    申请日：1995-11-17

    申请人： CANON KABUSHIKI KAISHA

    发明人： Ikeda, Eiichiro, c/o Canon K.K.

    IPC分类号： H04N9/04

    CPC分类号： H04N9/646 ,  H04N5/235 ,  H04N9/045 ,  H04N2209/046

    摘要： Disclosed is an image processing method of expanding the dynamic range by determining a saturated or noise region in an image signal and replacing the image signal with a proper image signal. A threshold value (step S4) is set in units of colors on the basis of a standard image signal for each color, which is obtained upon sensing an image in a standard exposure, and a non-standard image signal for each color, which is obtained upon sensing the image in a non-standard exposure. A saturated or noise region is determined by applying the threshold value set in units of colors to the standard image signal. A region determined as a saturated or noise region is replaced with the non-standard image signal.

    1-Chip color video camera for generating inter-pixel color signal component by interpolating primary color signals from neighboring pixels
    54.
    发明公开
    1-Chip color video camera for generating inter-pixel color signal component by interpolating primary color signals from neighboring pixels 失效
    单板式彩色电视摄象机用于通过相邻像素的基色信号的内插产生象素间色信号

    公开(公告)号：EP0729278A2

    公开(公告)日：1996-08-28

    申请号：EP96102856.0

    申请日：1996-02-26

    申请人： SANYO ELECTRIC Co., Ltd.

    发明人： Okada, Hidefumi

    IPC分类号： H04N9/04

    CPC分类号： H04N9/646 ,  H04N9/045 ,  H04N2209/046

    摘要： A 1-chip color video camera providing such a frequency characteristic that suffers from small attenuation up to high frequency range for a G signal which has highest degree of contribution to brightness, and hence providing high resolution, is disclosed. In the 1-chip color video camera (100) having a color separation circuit (8) for processing signals obtained from a solid-state image sensor (1) in which color filters (85) of R, G and B primaries arranged mosaic-wise for respective pixels, color signal components at a central portion of a pixel block consisting of four pixels of two rows by two columns on the solid-state image sensor are generated by interpolation using color signal components of a plurality of neighboring pixels.

    摘要翻译： A 1-板式彩色电视摄象机提供搜索频率特性的确从小的衰减患有到高频率范围内对于具有亮度最高程度的贡献的一个G信号，因此提供高的分辨率，是游离缺失盘。 在具有用于从固态图像传感器获得的处理信号的色分离电路（8）的单板式彩色摄象机（100）（1），其中滤色器（85）的R，G和B基色布置MOSAIC 明智respectivement像素，彩色信号分量在像素块由两列上的固态图像传感器包括两个行的四个像素的中心部分通过内插使用相邻像素的多个彩色信号分量生成。

    Image pickup device
    56.
    发明公开
    Image pickup device 失效
    图像拾取设备

    公开(公告)号：EP0660617A2

    公开(公告)日：1995-06-28

    申请号：EP94309832.7

    申请日：1994-12-23

    申请人： CANON KABUSHIKI KAISHA

    发明人： Hieda, Teruo, c/o Canon Kabushiki Kaisha

    IPC分类号： H04N9/04 ,  H04N5/335

    CPC分类号： H04N5/335 ,  H04N9/045 ,  H04N2209/046

    摘要： For obtaining both still and moving images in satisfactory manner in an image pickup device, in addition to a circuit for generating a moving image, frame recursive filters 18, 19, 20 and an interface circuit 21 are provided for generating a still image. Wide-band color signals R, G, B generated from the signals obtained from the CCD are subjected to a filtering process in the frame recursive filters 18, 19, 20 and the image retained in the filters 18, 19, 20 as a result of the filtering process is released as a still image under the control by the interface circuit 21. Thus the still and moving images can be generated respectively according to the required characteristics, without color blotting or color aberration and without deterioration in the color reproducibility and in the S/N ratio.

    摘要翻译： 为了在图像拾取装置中以令人满意的方式获得静止图像和运动图像，除了用于产生运动图像的电路之外，还提供帧递归滤波器18,19,20和接口电路21以产生静止图像。 由CCD获得的信号产生的宽带彩色信号R，G，B在帧递归滤波器18,19,20中经受滤波处理，并由于滤波器18,19,20保留在滤波器18,19,20中的图像 滤波处理在接口电路21的控制下作为静止图像被释放。因此，可以根据所需特性分别产生静止图像和运动图像，而没有颜色污点或色差，并且没有恶化颜色再现性，并且在 信噪比。

    Digital signal processing system for color camera apparatus
    57.
    发明公开
    Digital signal processing system for color camera apparatus 失效
    用于彩色摄像机设备的数字信号处理系统

    公开(公告)号：EP0516460A3

    公开(公告)日：1994-06-15

    申请号：EP92304929.0

    申请日：1992-05-29

    申请人： VICTOR COMPANY OF JAPAN, LIMITED

    发明人： Nishiyama, Hiroshi ,  Yokoyama, Shozo ,  Kubota, Masanori ,  Kiyofuji, Takashi ,  Miyashita, Mamoru

    IPC分类号： H04N1/46 ,  H04N1/40 ,  H04N5/208 ,  H04N9/64

    CPC分类号： H04N5/208 ,  H04N1/64 ,  H04N9/646 ,  H04N2209/046

    摘要： A color camera apparatus comprises an image pickup element having a stripe/mosaic type color filter and photoelectrically converting an arriving optical image so as to obtain at least a signal including a brightness component and a color component multiplexed with each other. And, the apparatus comprises an A/D converter for digitizing above multiplexed signal, and a brightness signal processing circuit which separates the brightness component from the multiplexed signal and carries out an aperture correction by means of a delay element having a delay amount corresponding to two horizontal scanning period. And further, the apparatus comprises a color signal processing circuit which separates the color component from the multiplexed signal so as to obtain two line-sequential color difference components through a predetermined arithmetic procedure. And, the color signal processing circuit not only carries out a circular-type noise removal processing operation by means of the delay element having the delay amount corresponding to two horizontal scanning periods, but carries out a rearrangement of said line-sequential color difference components by use of the same delay line.

    摘要翻译： 彩色照相机装置包括具有条纹/马赛克型滤色器的图像拾取元件，并对到达的光学图像进行光电转换，以便至少获得包括相互复用的亮度分量和颜色分量的信号。 并且，该装置包括用于数字化上述复用信号的A / D转换器和亮度信号处理电路，该亮度信号处理电路将亮度分量与多路复用信号分离，并通过具有对应于两个延迟量的延迟量的延迟元件进行孔径校正 水平扫描周期。 此外，该装置包括一个颜色信号处理电路，该彩色信号处理电路通过预定的算术程序将彩色分量与多路复用信号分离，从而获得两个行顺序色差分量。 并且，彩色信号处理电路不仅通过具有对应于两个水平扫描周期的延迟量的延迟元件执行圆形噪声去除处理操作，而且通过以下方式执行所述线序色差分量的重排： 使用相同的延迟线。

    Solid-state color imaging apparatus
    58.
    发明公开
    Solid-state color imaging apparatus 失效
    固态彩色成像装置

    公开(公告)号：EP0561409A3

    公开(公告)日：1994-06-01

    申请号：EP93104488.7

    申请日：1993-03-18

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Kotaki, Hiroaki, c/o Intel. Property Division

    IPC分类号： H04N9/04 ,  H04N9/73

    CPC分类号： H04N9/735 ,  H04N9/045 ,  H04N2209/046

    摘要： A solid-state imaging element (31) and solid-state imaging elements (30, 32) are arranged spatially so as to be horizontally shifted half a pixel pitch from one another so that a light-sensitive portion of each pixel of the solid-state imaging elements (30, 32) may correspond to a light-insensitive portion of each pixel of the solid-state imaging element (31). A high-frequency component synthesizer circuit (49) produces the high-frequency components of a luminance signal on the basis of the signal E G obtained by performing nonlinear process on the output of the solid-state imaging element (31) and the signal E R + E B obtained by performing nonlinear process on the outputs of the solid-state imaging elements (30, 32) and mixing the resulting signals. At this time, based on the result of comparing the output signal of the solid-state imaging element (31) with the respective output signals of the solid-state imaging elements (30, 32), the mixing ratio of signal E R to E B is controlled.

    Digital zooming circuit with compensation of the edge degradation
    59.
    发明公开
    Digital zooming circuit with compensation of the edge degradation 失效
    数字缩放Kantendegeneration。

    公开(公告)号：EP0589721A1

    公开(公告)日：1994-03-30

    申请号：EP93307596.2

    申请日：1993-09-24

    申请人： SAMSUNG ELECTRONICS CO. LTD.

    发明人： Park, Wung-wook ,  Paik, Joon-ki

    IPC分类号： H04N5/262 ,  H04N9/74

    CPC分类号： H04N9/74 ,  G06T3/4007 ,  G06T3/403 ,  H04N5/2628 ,  H04N9/045 ,  H04N2209/041 ,  H04N2209/046

    摘要： A digital zooming system comprises field memories (6) for saving a digital video signal forming a predetermined colour array; a sum/difference signal separator (5) for receiving the signal from the recording medium and then obtaining a sum value and difference value with respect to two neighbouring pixels among the pixels of the predetermined colour array; a correlation calculating circuit comprising a sum-value interpolation calculator (7 and 8) for performing horizontal and vertical interpolations with respect to the sum-value according to a zooming ratio and a difference-value interpolation calculator (9 and 10) for calculating the horizontal and vertical interpolations and a digital low pass filter to compensate for edge degradation; a sum/difference signal mixer (11) for receiving the interpolated sum value and difference value and producing the original digital video signal; a digital-to-analog converter (12) for converting the digital video signal from the mixer into analog form; an address generator (13) for generating an address signal for reading or writing the data recorded on the recording medium; a coefficient generator (14) for inputting coefficients conforming to the zooming ratio to the sum-value and difference-value interpolation calculators; and a control-signal generator (15) for generating a control signal for controlling each of the aforementioned elements. Hence, the system can be applied for a variety of magnifying factors and a high quality digital picture zoom can be accomplished.

    摘要翻译： 数字变焦系统包括用于保存形成预定颜色阵列的数字视频信号的场存储器（6） 和/差信号分离器（5），用于从记录介质接收信号，然后获得相对于预定颜色阵列的像素中的两个相邻像素的和值和差值; 相关计算电路，包括用于根据变焦比相对于和值执行水平和垂直内插的和值内插计算器（7和8）和用于计算水平的差值内插计算器（9和10） 和垂直内插和数字低通滤波器来补偿边缘劣化; 用于接收内插和值和差值并产生原始数字视频信号的和/差信号混合器（11）; 用于将来自混频器的数字视频信号转换成模拟形式的数模转换器（12）; 地址发生器（13），用于产生用于读取或写入记录在记录介质上的数据的地址信号; 系数发生器（14），用于将符合变焦比的系数输入到和值和差值插值计算器; 以及控制信号发生器（15），用于产生用于控制上述每个元件的控制信号。 因此，该系统可以应用于各种放大因子，并且可以实现高质量的数字图像变焦。