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    • 11. 发明授权
    • Calibration device for on-vehicle camera
    • 车载摄像机校准装置
    • US08280665B2
    • 2012-10-02
    • US12552694
    • 2009-09-02
    • Yoshihiro NakamuraEtsuo Yamada
    • Yoshihiro NakamuraEtsuo Yamada
    • G01C17/38G06K9/32
    • G06T7/80G06T2207/30208G06T2207/30252
    • A calibration device for an on-vehicle camera includes an image receiving portion receiving an image of an area around a vehicle taken by an on-vehicle camera, a viewpoint transformation portion performing a viewpoint transformation on the image to obtain a transformed image, a region setting portion setting a recognition target region on the transformed image according to coordinates of the calibration index set in accordance with vehicle models, where the recognition target region includes therein the calibration index, a calibration point detecting portion detecting a calibration point positioned within the calibration index included in the recognition target region, and a calibration calculating portion calibrating the on-vehicle camera in accordance with coordinates of the calibration point in a reference coordinate system and in accordance with coordinates of the calibration point in a camera coordinate system.
    • 一种用于车载照相机的校准装置包括:图像接收部分,接收由车载摄像机拍摄的车辆周围的区域的图像,对图像执行视点变换以获得变换图像的视点变换部分,区域 设置部分根据根据车辆模型设置的校准索引的坐标来设置变换图像上的识别目标区域,其中识别目标区域包括校准索引,校准点检测部分,检测位于校准索引内的校准点 包括在识别目标区域中的校准计算部分和校准计算部分,其根据参考坐标系中的校准点的坐标并且根据相机坐标系中的校准点的坐标来校准车载摄像机。
    • 12. 发明申请
    • TARGET POSITION IDENTIFYING APPARATUS
    • 目标位置识别装置
    • US20110102581A1
    • 2011-05-05
    • US13001061
    • 2009-07-17
    • Yoshihiro NakamuraEtsuo YamadaKeiji TakagiMasataka Chiba
    • Yoshihiro NakamuraEtsuo YamadaKeiji TakagiMasataka Chiba
    • H04N7/18G06K9/00
    • H04N17/002G06T7/80G06T2207/10024
    • A target position identifying apparatus includes a color difference converting section for processing pixel values of an image of a target comprised of combination of a first color and a second color obtained from the target under influence of ambient light, thus generating a color component value of the first color, a color component value of the second color and a luminance value, a color region determining section for determining region of the first color and region of the second color, based on the first color component value and the second color component value, with using a determination condition based on either luminance of the captured image or the luminance value, a border detecting section for detecting border between the first color and the second color in the target based on result of the determination by the color region determining section and a target position calculating section for calculating the position of the target on the image based on result of the border detection by the border detecting section.
    • 目标位置识别装置包括:色差转换部分,用于处理由环境光影响下从目标获得的第一颜色和第二颜色的组合的目标图像的像素值,从而生成颜色分量值 第一颜色,第二颜色的颜色分量值和亮度值,基于第一颜色分量值和第二颜色分量值,确定第一颜色和第二颜色的区域的区域的颜色区域确定部分, 使用基于拍摄图像的亮度或亮度值的确定条件,基于由颜色区域确定部分确定的结果和目标来检测目标中的第一颜色和第二颜色之间的边界的边界检测部分 位置计算部分,用于基于边界检测的结果计算图像上的目标的位置 由边界检测部分进行。
    • 16. 发明申请
    • CALIBRATION DEVICE FOR ON-VEHICLE CAMERA
    • 车载摄像机校准装置
    • US20100082281A1
    • 2010-04-01
    • US12552694
    • 2009-09-02
    • Yoshihiro NakamuraEtsuo Yamada
    • Yoshihiro NakamuraEtsuo Yamada
    • G06F19/00
    • G06T7/80G06T2207/30208G06T2207/30252
    • A calibration device for an on-vehicle camera includes an image receiving portion receiving an image of an area around a vehicle taken by an on-vehicle camera, a viewpoint transformation portion performing a viewpoint transformation on the image to obtain a transformed image, a region setting portion setting a recognition target region on the transformed image according to coordinates of the calibration index set in accordance with vehicle models, where the recognition target region includes therein the calibration index, a calibration point detecting portion detecting a calibration point positioned within the calibration index included in the recognition target region, and a calibration calculating portion calibrating the on-vehicle camera in accordance with coordinates of the calibration point in a reference coordinate system and in accordance with coordinates of the calibration point in a camera coordinate system.
    • 一种用于车载照相机的校准装置包括:图像接收部分,接收由车载摄像机拍摄的车辆周围的区域的图像,对图像执行视点变换以获得变换图像的视点变换部分,区域 设置部分根据根据车辆模型设置的校准索引的坐标来设置变换图像上的识别目标区域,其中识别目标区域包括校准索引,校准点检测部分,检测位于校准索引内的校准点 包括在识别目标区域中的校准计算部分和校准计算部分,其根据参考坐标系中的校准点的坐标并且根据相机坐标系中的校准点的坐标来校准车载摄像机。
    • 18. 发明授权
    • Image reading apparatus and X-ray imaging apparatus
    • 图像读取装置和X射线成像装置
    • US07110498B2
    • 2006-09-19
    • US10938429
    • 2004-09-10
    • Etsuo Yamada
    • Etsuo Yamada
    • H05G1/64
    • G01T1/2928H04N5/32
    • An image reading apparatus includes a DC/DC power supply which supplies power to at least part of the apparatus, a photodetector array including two-dimensionally arranged photoelectric conversion elements, and a line selector and reading circuit which read signals from the photoelectric conversion elements for each row in the photodetector array as a unit. A line driving signal in the line selector is set to be synchronized with a reference clock for defining the oscillation frequency of the DC/DC power supply and have a period of an integer multiple of the reference clock. A sample/hold signal for determining the timing at which a signal read from the photodetector array is sampled/held is output at a predetermined phase timing of each period of the line driving signal.
    • 图像读取装置包括向至少部分设备供电的DC / DC电源,包括二维布置的光电转换元件的光电检测器阵列,以及从光电转换元件读取信号的行选择器和读取电路, 光电检测器阵列中的每一行作为一个单元。 线路选择器中的线路驱动信号被设置为与用于定义DC / DC电源的振荡频率的参考时钟同步,并且具有参考时钟的整数倍的周期。 用于确定从光电检测器阵列读取的信号被采样/保持的定时的采样/保持信号在线驱动信号的每个周期的预定相位定时输出。
    • 19. 发明申请
    • Image reading apparatus and X-ray imaging apparatus
    • 图像读取装置和X射线成像装置
    • US20050058252A1
    • 2005-03-17
    • US10938429
    • 2004-09-10
    • Etsuo Yamada
    • Etsuo Yamada
    • A61B6/00G01N23/00G01T1/00G01T1/20G01T1/29G03B42/02H02M5/45H02M5/458H05G1/56
    • G01T1/2928H04N5/32
    • An image reading apparatus includes a DC/DC power supply which supplies power to at least part of the apparatus, a photodetector array including two-dimensionally arranged photoelectric conversion elements, and a line selector and reading circuit which read signals from the photoelectric conversion elements for each row in the photodetector array as a unit. A line driving signal in the line selector is set to be synchronized with a reference clock for defining the oscillation frequency of the DC/DC power supply and have a period of an integer multiple of the reference clock. A sample/hold signal for determining the timing at which a signal read from the photodetector array is sampled/held is output at a predetermined phase timing of each period of the line driving signal.
    • 图像读取装置包括向至少部分设备供电的DC / DC电源,包括二维布置的光电转换元件的光电检测器阵列,以及从光电转换元件读取信号的行选择器和读取电路, 光电检测器阵列中的每一行作为一个单元。 线路选择器中的线路驱动信号被设置为与用于定义DC / DC电源的振荡频率的参考时钟同步,并且具有参考时钟的整数倍的周期。 用于确定从光电检测器阵列读取的信号被采样/保持的定时的采样/保持信号在线驱动信号的每个周期的预定相位定时输出。