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    • 5. 发明申请
    • IMAGING APPARATUS, IMAGE PROCESSING METHOD AND COMPUTER-READABLE STORAGE MEDIUM
    • 成像装置,图像处理方法和计算机可读存储介质
    • US20120127338A1
    • 2012-05-24
    • US13302180
    • 2011-11-22
    • Hiroshi SUZUKITakanori ISHIHAMA
    • Hiroshi SUZUKITakanori ISHIHAMA
    • H04N5/235
    • H04N5/361
    • An imaging apparatus includes an image sensor, a shutter, a memory, a temperature acquisition unit, a determination unit, and an acquisition controller. The image sensor includes an effective pixel region and an optical black region. The memory temporarily stores photoelectric-converted image data after the shutter is opened. The temperature acquisition unit acquires an ambient temperature when the temperature is determined to be equal to or more than a threshold value when the image data is stored in the memory. The acquisition controller makes control for shutting the shutter and for acquiring photoelectric-converted image data at that time when the temperature is equal to or more than the threshold value. The writing unit cuts out image data of the effective pixel region from the acquired image data. Difference in optical black level is corrected using the cut-out image data.
    • 成像装置包括图像传感器,快门,存储器,温度获取单元,确定单元和采集控制器。 图像传感器包括有效像素区域和光学黑色区域。 存储器在快门打开后临时存储光电转换的图像数据。 当将图像数据存储在存储器中时,当温度被确定为等于或大于阈值时,温度获取单元获取环境温度。 当温度等于或大于阈值时,采集控制器进行关闭快门和用于在此时获取光电转换图像数据的控制。 写入单元从获取的图像数据中切出有效像素区域的图像数据。 使用切出的图像数据来校正光学黑色电平的差异。
    • 6. 发明申请
    • IMAGE PROCESSING DEVICE, IMAGE PROCESSING PROGRAM AND IMAGE PROCESSING METHOD
    • 图像处理设备,图像处理程序和图像处理方法
    • US20090262222A1
    • 2009-10-22
    • US12427907
    • 2009-04-22
    • Hiroshi SUZUKI
    • Hiroshi SUZUKI
    • H04N5/217
    • H04N1/603H04N9/646
    • An image processing device for performing color conversion processing on a VS (video signal obtained from a color CCD) includes a region defining section, which estimates an amount of noise of the VS, according to an ISO-sensitivity and a white-balance-coefficient, and, based on the estimated amount of noise, defines an AR (achromatic region) of a color space to which the video signal belongs as a region centered on an achromatic axis where saturation is 0, and a color conversion section, which determines whether or not the VS belongs to the AR, and does not perform color conversion processing or performs projection of the video signal onto the achromatic axis if the video signal does not belong to the AR, or performs color conversion processing so that the numerical error between a target color signal and a color signal after color conversion processing is minimized if the video signal belongs to the AR.
    • 用于对VS(从彩色CCD获得的视频信号)进行颜色转换处理的图像处理装置包括:区域定义部,其根据ISO感光度和白平衡系数估计VS的噪声量 ,并且基于估计的噪声量,将视频信号所属的颜色空间的AR(无色区域)定义为以饱和度为0的无彩色轴为中心的区域,以及颜色转换部分,其确定是否 或者不是VS属于AR,并且如果视频信号不属于AR,则不执行颜色转换处理或者将视频信号投影到无彩色轴上,或者执行颜色转换处理,使得在 如果视频信号属于AR,则目标颜色信号和颜色转换处理之后的颜色信号被最小化。
    • 7. 发明申请
    • MOTOR CONTROLLER AND ELECTRIC POWER STEERING APPARATUS
    • 电机控制器和电动转向装置
    • US20080297958A1
    • 2008-12-04
    • US12128304
    • 2008-05-28
    • Hiroshi SUZUKI
    • Hiroshi SUZUKI
    • H02H7/08H02P23/14
    • B62D5/0487B62D5/0484H02P21/22H02P29/032
    • When a failure of an electric current flow occurs in any one of phases, a microcomputer calculates a d-axis current command value that changes along a tangent curve with predetermined rotation angles as asymptotic lines. The microcomputer continuously outputs a motor control signal using two phases other than the phase with the failed electric current as electric current flowing phases by performing current feedback control in correspondence with the d-axis current command value. In such two-phase drive operation, the microcomputer calculates the d-axis current command value and a q-axis current command value in such a manner that the phase current values of the electric current flowing phases become constant at respective maximum values of flowable electric currents, which are set for the phases, in rotation angle restriction ranges in which the phase current values need to be restricted in correspondence with the maximum values, or electric current restriction ranges.
    • 当在任一相中发生电流流失时,微计算机计算沿预定旋转角度的切线变化的d轴电流指令值作为渐近线。 通过对应于d轴电流指令值执行电流反馈控制,微型计算机连续地输出除了具有故障电流的相位以外的两相的电动机控制信号作为电流流动相。 在这种两相驱动动作中,微型计算机以这样的方式计算出d轴电流指令值和q轴电流指令值,使得电流流动相的相电流值在流动电流的各自的最大值处恒定 在相位电流值需要根据最大值或电流限制范围进行限制的旋转角度限制范围内,设定相位的电流。
    • 8. 发明申请
    • MOTOR CONTROLLER AND ELECTRIC POWER STEERING APPARATUS
    • 电机控制器和电动转向装置
    • US20080203958A1
    • 2008-08-28
    • US12036614
    • 2008-02-25
    • Hiroshi SUZUKI
    • Hiroshi SUZUKI
    • H02P21/00F16H35/00H02P6/10
    • B62D5/046H02P21/06H02P21/22
    • A second computing section executing a compensation control is provided with a third computing section computing a d-axis correction amount, and a fourth computing section computing a q-axis correction amount. The respective computing sections compute a d-axis correction coefficient and a q-axis correction coefficient corresponding to an rotation angle by referring to a map. The respective computing sections compute the d-axis correction amount and the q-axis correction amount on the basis of an arithmetic expression constituted by a first term obtained by multiplying a correction coefficient relating to an object axis by a q-axis current command value and a second term obtained by multiplying a correction coefficient relating to an auxiliary axis by a d-axis current command value. The second computing section computes a d-axis current command value and a q-axis current command value which do not generate a torque ripple caused by a distortion of an induced voltage waveform, by adding the d-axis correction amount and the q-axis correction amount to the d-axis current command value and the q-axis current command value.
    • 执行补偿控制的第二计算部分具有计算d轴校正量的第三计算部分和计算q轴校正量的第四计算部分。 相应的计算部分通过参考地图来计算对应于旋转角度的d轴校正系数和q轴校正系数。 各个计算部根据通过将与目标轴相关的校正系数乘以q轴电流指令值而获得的第一项构成的运算式来计算d轴校正量和q轴校正量,以及 通过将与辅助轴相关的校正系数乘以d轴电流指令值而获得的第二项。 第二计算部通过将d轴校正量和q轴相加来计算d轴电流指令值和不产生由感应电压波形的失真引起的转矩波动的q轴电流指令值 对d轴电流指令值和q轴电流指令值的校正量。
    • 10. 发明申请
    • NOISE REDUCTION METHOD FOR VIDEO SIGNAL AND IMAGE PICKUP APPARATUS
    • 用于视频信号和图像拾取装置的噪声减少方法
    • US20100245632A1
    • 2010-09-30
    • US12748945
    • 2010-03-29
    • Hiroshi SUZUKI
    • Hiroshi SUZUKI
    • H04N5/217H04N5/00
    • H04N5/23212H04N5/357
    • A noise reduction method for a video signal including a shooting step of shooting a subject by a CCD and outputting a video signal, a distance information acquisition step of calculating a shooting distance between the subject and the CCD, a specific distance information acquisition step of calculating a specific distance which is a shooting distance between one subject of the subject and the CCD on the basis of focus information of the one subject, a relative distance calculation step of calculating a relative distance corresponding to the video signal on the basis of the shooting distance and the specific distance, and a noise reduction step, including a smoothing step of performing smoothing processing on the video signal on the basis of the relative distance, of performing noise reduction processing on the video signal on the basis of the relative distance.
    • 一种视频信号的降噪方法,包括由CCD拍摄对象并输出视频信号的拍摄步骤,计算被摄体与CCD之间的拍摄距离的距离信息获取步骤,计算 相对距离计算步骤,基于拍摄距离计算与视频信号相对应的相对距离;相对距离计算步骤,基于拍摄距离计算与视频信号相对应的相对距离;相对距离计算步骤, 以及特定距离,以及噪声降低步骤,包括基于相对距离对基于相对距离的视频信号执行平滑处理的平滑处理步骤,基于相对距离对视频信号执行降噪处理。