公开(公告)号：US08483491B2

公开(公告)日：2013-07-09

申请号：US13236720

申请日：2011-09-20

申请人： Takashi Yanada

发明人： Takashi Yanada

IPC分类号： G06K9/72

CPC分类号： G06K9/4614 ,  G06K9/00973

摘要： A calculation device may include a data read unit configured to sequentially read pixel values in the first direction while sequentially making a shift in the second direction from a position of a reference pixel in the first and second directions, a first data integration unit configured to output a sum of values of pixels as a first integration value, a second data integration unit configured to output a sum of values of pixels as a second integration value, and a data cumulative calculation unit configured to obtain a cumulative value by accumulating pixel values respectively included in a first rectangular data area expressed by the first number of pixels in the first direction and the second number of pixels in the second direction based on the first integration value output from the first data integration unit and the second integration value output from the second data integration unit.

摘要翻译： 计算装置可以包括：数据读取单元，被配置为在从第一和第二方向的参考像素的位置顺序地进行第二方向的移位的同时顺序读取第一方向的像素值;第一数据合成单元， 作为第一积分值的像素值的和，被配置为输出像素值的和作为第二积分值的第二数据积分单元，以及数据累积计算单元，被配置为通过累积分别包括的像素值来获得累积值 基于从第一数据积分单元输出的第一积分值和从第二数据输出的第二积分值，在由第一方向上的第一像素数和第二方向的第二像素数表示的第一矩形数据区域中， 整合单位

公开(公告)号：US08175450B2

公开(公告)日：2012-05-08

申请号：US12565427

申请日：2009-09-23

申请人： Takashi Yanada

发明人： Takashi Yanada

IPC分类号： G03B13/34

CPC分类号： G03B13/34

摘要： A focal point detection device includes: a rate conversion section which converts a transmission rate of an image signal, which is associated with a subject image imaged via an imaging lens on a part of a receiving surface of an imaging device, such that the image signal input to the rate conversion section at a first transmission rate is output from the rate conversion section at a second transmission rate that is slower than the first transmission rate; a filter which extracts a frequency component from the image signal output at the second transmission rate from the rate conversion section; and an evaluation value calculation section which calculates an evaluation value of a focus state of the imaging lens, based on a signal of the frequency component that is extracted by the filter.

摘要翻译： 焦点检测装置包括：速率转换部分，其将与经由成像透镜成像的被摄体图像相关联的图像信号的传输速率转换成成像装置的接收表面的一部分，使得图像信号 以比第一传输速率慢的第二传输速率从速率转换部分以第一传输速率输入到速率转换部分; 滤波器，其从所述速率转换部分以从所述第二传输速率输出的图像信号中提取频率分量; 以及评估值计算部，其基于由所述滤波器提取的频率分量的信号来计算所述摄像透镜的聚焦状态的评价值。