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    Method and imaging apparatus for correcting defective pixel of solid-state image sensor, and method for creating pixel information
    1.
    发明申请
    Method and imaging apparatus for correcting defective pixel of solid-state image sensor, and method for creating pixel information 有权
    用于校正固态图像传感器的缺陷像素的方法和成像装置，以及用于产生像素信息的方法

    公开(公告)号：US20080180554A1

    公开(公告)日：2008-07-31

    申请号：US11905273

    申请日：2007-09-28

    申请人： Hirokazu Kobayashi ,  Kazuya Oda ,  Takeshi Misawa

    发明人： Hirokazu Kobayashi ,  Kazuya Oda ,  Takeshi Misawa

    IPC分类号： H04N9/64

    CPC分类号： H04N5/367

    摘要： In a solid-state image sensor in which a large number of pixel cells each comprised of a combination of a main photosensitive pixel having a relatively large area and a subsidiary photosensitive pixel having a relatively small area are arranged, if the subsidiary photosensitive pixel has a defect for any pixel cell, division photometry data during AE processing is read, and the defective pixel is replaced with a value obtained by dividing the output value of the main photosensitive pixel at the same position by a sensitivity ratio only for a section for which it is determined that the main photosensitive pixel is not saturated. Thus, the pixel value of a defective pixel can be accurately corrected without causing a reduction in resolution sensitivity compared to a conventional method of correcting a defective pixel using surrounding pixel information.

    摘要翻译： 在固态图像传感器中，其中布置了大量像素单元，每个像素单元均由具有相对较大面积的主要光敏像素的组合和具有相对较小面积的辅助感光像素的组合组成，如果辅助光敏像素具有 读取AE处理期间的任何像素单元的缺陷，分割测光数据，并将缺陷像素替换为通过将相同位置处的主感光像素的输出值除以灵敏度比而获得的值， 确定主感光像素不饱和。 因此，与使用周围像素信息校正缺陷像素的传统方法相比，可以精确地校正不良像素的像素值，而不会导致分辨率灵敏度的降低。

    Imaging apparatus in which type of light source is discriminated to correctly adjust white balance
    2.
    发明授权
    Imaging apparatus in which type of light source is discriminated to correctly adjust white balance 有权
    识别光源类型以正确调节白平衡的成像设备

    公开(公告)号：US07349024B2

    公开(公告)日：2008-03-25

    申请号：US10807300

    申请日：2004-03-24

    申请人： Kazuya Oda ,  Takeshi Misawa ,  Hirokazu Kobayashi

    发明人： Kazuya Oda ,  Takeshi Misawa ,  Hirokazu Kobayashi

    IPC分类号： H04N5/222

    CPC分类号： H04N1/48

    摘要： Each pixel has a main pixel and a sub pixel. Each pixel has a color filter. The color filters are respectively arranged above a main photosensitive portion of the main pixel and a sub photosensitive portion of the sub pixel. The thickness of the color filters above the main and sub photosensitive portions is different from each other, so that spectral sensitivity characteristics of the main and sub photosensitive portions are respectively different. In a WB gain determiner, the type of illumination light source is judged by comparing image signals taken out from the main and sub pixels. The WB gain determiner determines a gain correction coefficient based on the type of illumination light source. The gain correction in each RGB color is performed according to the gain correction coefficient to adjust the white balance.

    摘要翻译： 每个像素具有主像素和子像素。 每个像素都有一个滤色镜。 滤色器分别设置在主像素的主感光部分和子像素的副感光部分的上方。 主感光部分和副光敏部分之上的滤色器的厚度彼此不同，使得主感光部分和次光敏部分的光谱灵敏度特性分别不同。 在WB增益确定器中，通过比较从主像素和子像素取出的图像信号来判断照明光源的类型。 WB增益确定器基于照明光源的类型来确定增益校正系数。 根据增益校正系数执行每个RGB颜色的增益校正，以调整白平衡。

    Method and imaging apparatus for correcting defective pixel of solid-state image sensor, and method for creating pixel information
    3.
    发明授权
    Method and imaging apparatus for correcting defective pixel of solid-state image sensor, and method for creating pixel information 失效
    用于校正固态图像传感器的缺陷像素的方法和成像装置，以及用于产生像素信息的方法

    公开(公告)号：US07301571B2

    公开(公告)日：2007-11-27

    申请号：US10757469

    申请日：2004-01-15

    申请人： Hirokazu Kobayashi ,  Kazuya Oda ,  Takeshi Misawa

    发明人： Hirokazu Kobayashi ,  Kazuya Oda ,  Takeshi Misawa

    IPC分类号： H04N9/64

    CPC分类号： H04N5/367

    摘要： In a solid-state image sensor in which a large number of pixel cells each comprised of a combination of a main photosensitive pixel having a relatively large area and a subsidiary photosensitive pixel having a relatively small area are arranged, if the subsidiary photosensitive pixel has a defect for any pixel cell, division photometry data during AE processing is read, and the defective pixel is replaced with a value obtained by dividing the output value of the main photosensitive pixel at the same position by a sensitivity ratio only for a section for which it is determined that the main photosensitive pixel is not saturated. Thus, the pixel value of a defective pixel can be accurately corrected without causing a reduction in resolution sensitivity compared to a conventional method of correcting a defective pixel using surrounding pixel information.

    摘要翻译： 在固态图像传感器中，其中布置了大量像素单元，每个像素单元均由具有相对较大面积的主要光敏像素的组合和具有相对较小面积的辅助感光像素的组合组成，如果辅助光敏像素具有 读取AE处理期间的任何像素单元的缺陷，分割测光数据，并将缺陷像素替换为通过将相同位置处的主感光像素的输出值除以灵敏度比而获得的值， 确定主感光像素不饱和。 因此，与使用周围像素信息校正缺陷像素的传统方法相比，可以精确地校正不良像素的像素值，而不会导致分辨率灵敏度的降低。

    Optical low pass filter
    4.
    发明授权
    Optical low pass filter 失效
    光学低通滤波器

    公开(公告)号：US06549336B2

    公开(公告)日：2003-04-15

    申请号：US09769495

    申请日：2001-01-26

    申请人： Masaya Tamaru ,  Kazuya Oda ,  Takeshi Misawa ,  Yasunobu Kayanuma ,  Masaaki Orimoto

    发明人： Masaya Tamaru ,  Kazuya Oda ,  Takeshi Misawa ,  Yasunobu Kayanuma ,  Masaaki Orimoto

    IPC分类号： G02B2728

    CPC分类号： G02B5/3083

    摘要： An optical low-pass filter for a solid-state image sensor of an offset sampling structure is constituted of first and second optical members. The first optical member splits an incident light ray into a rectilinear ray and a refracted ray whose propagation direction is about 45° to a horizontal direction of the solid-state image sensor. The second optical member splits an incident ray into a rectilinear ray and a refracted ray whose propagation direction is about 90° to the horizontal direction. The optical low-pass filter having this configuration splits the incident light ray into four rays whose split points are at respective corners of a parallelogram. Assuming that Px represents a sampling interval in the horizontal direction, Py represents a sampling interval in the vertical direction, and D1 and D2 represent respective split widths of the incident light rays through the first and second optical members, the split widths D1 and D2 satisfy the following conditions: D1≈Px/{square root over (2)} and Py≦D2≦2·Py.

    摘要翻译： 用于偏移采样结构的固态图像传感器的光学低通滤波器由第一和第二光学构件构成。 第一光学构件将入射光线分解为直线光线和传播方向与固态图像传感器的水平方向大约45°的折射光线。 第二光学构件将入射光线分解为直线光线和相对于水平方向传播方向为约90°的折射光线。 具有这种结构的光学低通滤波器将入射光线分成四条光线，其分裂点在平行四边形的各个角上。 假设Px表示水平方向的采样间隔，Py表示垂直方向的采样间隔，D1和D2表示通过第一和第二光学部件的入射光的分割宽度，分割宽度D1和D2满足 以下条件：D1≈Px/ {平方根超过（2和Py <= D2 <= 2.Py。

    Solid-state image pickup apparatus free from limitations on thin-down reading in a four-field interline transfer system and method of reading signals out of the same
    9.
    发明授权
    Solid-state image pickup apparatus free from limitations on thin-down reading in a four-field interline transfer system and method of reading signals out of the same 失效
    固态图像拾取装置在四场线间传输系统中对薄型读取的限制和从其读出信号的方法

    公开(公告)号：US06707494B1

    公开(公告)日：2004-03-16

    申请号：US09434465

    申请日：1999-11-05

    申请人： Takeshi Misawa ,  Kazuya Oda

    发明人： Takeshi Misawa ,  Kazuya Oda

    IPC分类号： H04N5335

    CPC分类号： H04N5/335 ,  H04N5/23293 ,  H04N5/3456 ,  H04N5/3728 ,  H04N5/3765 ,  H04N9/045

    摘要： An electronic still camera is provided with timing generators in drive signal generating circuitry which are selected to generate various timing signals in accordance with a mode set by mode selection. Two vertical drivers generate substrate potentials defining the signal charge capacity of photo-sensitive cells. In accordance with the mode set, a system controller feeds a mode adaptive selector with a control signal. In response to the mode signal, the mode adaptive selector selects an output from one of the vertical drivers. From the one vertical driver, the photosensitive cells are fed with a predetermined voltage higher than usual as the substrate potential. An image signal obtained is amplified by a signal processing circuit provided in the following stage.

    摘要翻译： 电子静态照相机在驱动信号发生电路中设置有定时发生器，其被选择为根据通过模式选择设置的模式产生各种定时信号。 两个垂直驱动器产生限定光敏电池的信号电荷容量的衬底电位。 根据模式设置，系统控制器向模式自适应选择器馈送控制信号。 响应于模式信号，模式自适应选择器选择一个垂直驱动器的输出。 从一个垂直驱动器，感光单元以比通常高的预定电压作为衬底电位被馈送。 所获得的图像信号由下一阶段提供的信号处理电路放大。