Image signal processing device and solid-state imaging device
    22.
    发明授权
    Image signal processing device and solid-state imaging device 失效
    图像信号处理装置和固态成像装置

    公开(公告)号:US08537254B2

    公开(公告)日:2013-09-17

    申请号:US13232219

    申请日:2011-09-14

    IPC分类号: H04N5/20

    CPC分类号: H04N5/185 H04N5/361

    摘要: According to the embodiment, a feedback clamp circuit is included, which increases or decreases a clamp parameter so that a black level approaches a target value while controlling a change amount of the clamp parameter, which sets the black level, based on the black level read out from OB pixels.

    摘要翻译: 根据实施例,包括反馈钳位电路,其增加或减少钳位参数,使得黑电平接近目标值,同时基于黑电平读取来控制设置黑电平的钳位参数的变化量 从OB像素出来。

    Noise canceling circuit, noise canceling method, and solid-state imaging device
    23.
    发明授权
    Noise canceling circuit, noise canceling method, and solid-state imaging device 有权
    降噪电路,降噪方法和固态成像装置

    公开(公告)号:US08154629B2

    公开(公告)日:2012-04-10

    申请号:US12554409

    申请日:2009-09-04

    IPC分类号: H04N9/64 H04N5/208 G06K9/40

    摘要: A noise canceling circuit that includes a sharp/flat-part determining unit that determines whether a neighborhood of a target pixel in a digital video signal is a sharp part or a flat part by calculating a sharpness value indicating sharpness and an approximate noise value approximately indicating a noise value included in the target pixel based on pixel values of the target pixel and a predetermined number of pixels inputted immediately before and after the target pixel, and comparing the sharpness value and the approximate noise value, a noise extracting unit that extracts the noise value of the target pixel by performing a noise extraction corresponding to a result of the determination performed by the sharp/flat-part determining unit, and a correcting unit that corrects the pixel value of the target pixel by using the extracted noise value of the target pixel.

    摘要翻译: 一种噪声消除电路,包括:锐度/平坦部分确定单元,其通过计算表示清晰度的清晰度值和近似噪声值来确定数字视频信号中的目标像素的邻域是锐度部分还是平坦部分 基于目标像素的像素值和紧接在目标像素之前和之后输入的预定数量的像素的目标像素中包括的噪声值,以及比较清晰度值和近似噪声值,提取噪声的噪声提取单元 通过执行与由锐利/平坦部分确定单元执行的确定的结果相对应的噪声提取的目标像素的值;以及校正单元,其通过使用提取的目标的噪声值来校正目标像素的像素值 像素。

    SOLID-STATE IMAGING DEVICE AND IMAGE DEFECT CORRECTION PROCESSING CIRCUIT
    24.
    发明申请
    SOLID-STATE IMAGING DEVICE AND IMAGE DEFECT CORRECTION PROCESSING CIRCUIT 失效
    固态成像装置和图像缺陷校正处理电路

    公开(公告)号:US20110001853A1

    公开(公告)日:2011-01-06

    申请号:US12823646

    申请日:2010-06-25

    IPC分类号: H04N9/64

    CPC分类号: H04N5/3675 H04N5/374

    摘要: According to one embodiment, an image defect correction processing circuit includes a signal level comparator circuit and a defect correction circuit. The signal level comparator circuit extracts the maximum signal level and the minimum signal level from a plurality of pixel signals existing around a correction target pixel. The defect correction circuit executes defect corrections with respect to the correction target pixel.

    摘要翻译: 根据一个实施例,图像缺陷校正处理电路包括信号电平比较器电路和缺陷校正电路。 信号电平比较器电路从存在于校正对象像素周围的多个像素信号中提取最大信号电平和最小信号电平。 缺陷校正电路相对于校正对象像素执行缺陷校正。