公开(公告)号：US07623172B2

公开(公告)日：2009-11-24

申请号：US10545740

申请日：2004-02-20

申请人： Takamasa Wada ,  Eiichi Funatsu ,  Keiji Mabuchi ,  Ken Nakajima ,  Katsuaki Hirota ,  Nobuyuki Satou ,  Takashi Abe ,  Tomoyuki Umeda ,  Nobuo Nakamura ,  Hiroaki Fujita ,  Hiroki Sato

发明人： Takamasa Wada ,  Eiichi Funatsu ,  Keiji Mabuchi ,  Ken Nakajima ,  Katsuaki Hirota ,  Nobuyuki Satou ,  Takashi Abe ,  Tomoyuki Umeda ,  Nobuo Nakamura ,  Hiroaki Fujita ,  Hiroki Sato

IPC分类号： H04N3/14 ,  H04N5/335 ,  H04N5/228

CPC分类号： H04N9/045 ,  H04N5/3456 ,  H04N5/3458 ,  H04N5/347 ,  H04N5/374

摘要： A solid state imaging device having an X-Y addressable solid state imaging device with color filters and a driving unit which reads out pixel information of a same color filter in a unit pixel block as pixel information for one pixel simulatively. A predetermined color coding for the pixels has two rows and two columns. When k is a positive integer equal to or larger than 0, with (2k+3)×(2k+3) pixel blocks as unit pixel blocks, the driving unit reads out pieces of pixel information of the same color filter in each of the unit pixel blocks, the driving unit reads out pieces of pixel information of a same color filter in each of the unit pixel blocks simulatively as pixel information for one pixel in a state in which the unit pixel blocks are laid without overlapping one another, and the driving unit averages the added pieces of pixel information and outputs the averaged pieces of pixel information.

摘要翻译： 一种固态成像装置，具有具有滤色器的X-Y可寻址固态成像装置和驱动单元，其以模拟方式读出单位像素块中的相同滤色器的像素信息作为像素信息。 像素的预定颜色编码具有两行和两列。 当k是等于或大于0的正整数时，以（2k + 3）×（2k + 3）个像素块为单位像素块，驱动单元读出每个像素块中的相同滤色器的像素信息 单位像素块，驱动单元模拟地将每个单位像素块中的相同滤色器的像素信息作为像素信息读出，其中单位像素块被放置在不重叠的状态下的一个像素的像素信息，并且 驱动单元对所附加的像素信息进行平均并输出平均的像素信息。

公开(公告)号：US07826658B2

公开(公告)日：2010-11-02

申请号：US10514366

申请日：2003-04-16

申请人： Nobuyuki Sato ,  Ken Nakajima ,  Katsuaki Hirota

发明人： Nobuyuki Sato ,  Ken Nakajima ,  Katsuaki Hirota

IPC分类号： G06K9/00 ,  G06K9/46 ,  G06K9/40 ,  H04N9/73 ,  G09G5/02

CPC分类号： H04N5/23245 ,  H04N5/232 ,  H04N5/3456 ,  H04N5/3458 ,  H04N5/772 ,  H04N5/781 ,  H04N5/85 ,  H04N5/907 ,  H04N9/045

摘要： An image-processing apparatus for processing images, whereby the image-processing apparatus includes an image capture unit, a filter, and an extraction unit. The image capture unit acquires image signals composed of multiple color components of a 2×2 color-coding array. The filter then calculates an average pixel value associated with any (2n−1) pixels acquired by the image capture unit, whereby each of the filtered (2n−1) pixels include a target pixel and adjacent pixels having the same color component as that of the target pixel, and the calculated average is designated as the average of the target pixel and the adjacent pixels. At the extraction unit the pixel having the average calculated by the filter as the pixel value is extracted at an extraction rate of 1/(2n−1), where n is a positive integer value.

摘要翻译： 一种用于处理图像的图像处理装置，由此图像处理装置包括图像捕获单元，滤波器和提取单元。 图像捕获单元获取由2×2颜色编码阵列的多个颜色分量组成的图像信号。 然后，滤波器计算与由图像捕获单元获取的任何（2n-1）个像素相关联的平均像素值，由此滤波的（2n-1）像素中的每一个包括目标像素和具有与 目标像素和计算出的平均值被指定为目标像素和相邻像素的平均值。 在提取单元中，以1 /（2n-1）的提取速率提取具有作为像素值的滤波器计算出的平均值的像素，其中n是正整数值。

公开(公告)号：US20060055794A1

公开(公告)日：2006-03-16

申请号：US10514366

申请日：2003-04-06

申请人： Nobuyuki Sato ,  Ken Nakajima ,  Katsuaki Hirota

发明人： Nobuyuki Sato ,  Ken Nakajima ,  Katsuaki Hirota

IPC分类号： H04N5/228

CPC分类号： H04N5/23245 ,  H04N5/232 ,  H04N5/3456 ,  H04N5/772 ,  H04N5/781 ,  H04N5/85 ,  H04N5/907 ,  H04N9/045 ,  H04N9/04511

摘要： The present invention relates to apparatuses and methods for image processing, recording media, and programs in which extraction processing utilizing all pixels can be conducted. When a horizontal-component low-pass filter performs (1, 0, 1, 0, 1)/3 filtering with one of the green pixels in the first line as a target pixel, green pixels are multiplied by 1, red pixels are multiplied by 0, and the sum of the pixel values is divided by 3. As a result, a simple average of the target pixel and the adjacent green pixels is calculated. When one of the red pixels in the first line is defined as a target pixel, a simple average of the target pixel and the adjacent red pixels is calculated in the same manner. Similarly, green and blue pixels in the second line are filtered. Every third pixel of the horizontal components is then extracted in a 1/3 horizontal-extraction unit to generate an extracted-pixel group composed of pixels each having the simple-average value of every third pixel as a target pixel and the adjacent pixels of the same color. The present invention is applicable to digital cameras.

摘要翻译： 本发明涉及用于图像处理，记录介质和程序的装置和方法，其中可以进行利用所有像素的提取处理。 当水平分量低通滤波器以第一行中的一个绿色像素作为目标像素执行（1,0,1,0,1）/ 3滤波时，绿色像素乘以1，红色像素乘以 乘以0，并且将像素值的和除以3.结果，计算目标像素和相邻绿色像素的简单平均值。 当第一行中的一个红色像素被定义为目标像素时，以相同的方式计算目标像素和相邻红色像素的简单平均值。 类似地，第二行中的绿色和蓝色像素被过滤。 然后在1/3水平提取单元中提取水平分量的每个第三像素，以产生由每个具有每三个像素的简单平均值的像素组成的抽取像素组作为目标像素，并且相邻像素 相同的颜色。 本发明适用于数码相机。

公开(公告)号：US6034726A

公开(公告)日：2000-03-07

申请号：US683855

申请日：1996-07-19

申请人： Katsuaki Hirota ,  Naoki Kawaguchi

发明人： Katsuaki Hirota ,  Naoki Kawaguchi

IPC分类号： G03B3/10 ,  G02B7/08 ,  G02B7/28 ,  G03B13/00 ,  G03B13/34 ,  H04N5/232

CPC分类号： H04N5/23212 ,  G02B7/28 ,  G02B7/282

摘要： A lens driving device for an image pickup apparatus in which there is no problem of defocusing of an object caused by changes in the light stop state after manual or automatic focusing with respect to an object. The lens driving device includes a focusing correction amount calculation circuit 27 for calculating the amount of focus correction from the focus position from a focus position detection circuit 26 responsive to the zooming position from a zooming position detection circuit 28 and to a signal S.sub.1 from a light stop value sensor 13. The lens driving device also includes an adder 24 for summing the focusing correction amount to the focusing displacement from an autofocusing displacement calculation circuit 21 or a manual focusing displacement calculation circuit 22 via a signal switching unit 23. The resulting sum is outputted as a displacement of a focusing lens.

摘要翻译： 一种用于图像拾取装置的透镜驱动装置，其中相对于物体在手动或自动聚焦之后不存在因停止光停止状态的变化引起的物体散焦的问题。 透镜驱动装置包括：聚焦校正量计算电路27，用于响应于来自变焦位置检测电路28的变焦位置和来自光的信号S1，从焦点位置检测电路26的焦点位置计算聚焦校正量 透镜驱动装置还包括加法器24，用于经由信号切换单元23将聚焦校正量与来自自动聚焦位移计算电路21或手动聚焦位移计算电路22的聚焦位移相加。所得到的和是 作为聚焦透镜的位移输出。

公开(公告)号：US5764290A

公开(公告)日：1998-06-09

申请号：US345730

申请日：1994-11-22

申请人： Katsuaki Hirota ,  Yoshikazu Ochi ,  Makibi Nakamura

发明人： Katsuaki Hirota ,  Yoshikazu Ochi ,  Makibi Nakamura

IPC分类号： G02B7/10 ,  H04N5/232

CPC分类号： H04N5/23212 ,  G02B7/102

摘要： Flange-back adjustment in a video camera using an inner focus lens assembly is done by detecting a position on the top of an actual zoom tracking curve and by detecting positions of end points of a variater on the basis of the top. Positions of the end points are presumed by a calculation from a position of the variater before arrival at an end. That is, by using the position of the variater in focus as a result of a movement of a focus lens from the top, and a ratio of a distance from the position of the variater in focus to one of the end points versus a distance from the position of the variater in focus to the other of the end points, positions of the end points are obtained.

摘要翻译： 使用内部聚焦透镜组件的摄像机中的法兰回调整是通过检测实际变焦跟踪曲线的顶部的位置，并且基于顶部检测变化器的端点的位置来完成的。 终点的位置是通过在到达之前的变量的位置的计算来推定的。 也就是说，通过使聚焦透镜从顶部移动的焦点的位置，以及从聚焦变焦器的位置到终点之一的距离与距离 获取焦点的变焦器到另一个端点的位置，终点的位置。

公开(公告)号：US5274458A

公开(公告)日：1993-12-28

申请号：US824227

申请日：1992-01-22

申请人： Toshiharu Kondo ,  Shuji Shimizu ,  Katsuaki Hirota ,  Fumiaki Kato

发明人： Toshiharu Kondo ,  Shuji Shimizu ,  Katsuaki Hirota ,  Fumiaki Kato

IPC分类号： H04N5/232 ,  H04N5/765 ,  H04N5/77 ,  H04N9/82 ,  H04N5/30 ,  H04N5/76

CPC分类号： H04N9/82 ,  H04N5/335 ,  H04N5/772 ,  Y10S358/906

摘要： A switching circuit to selectively generate either one of an image pickup signal from an image pickup device and a reproduction video signal in which when the recording mode is set, the switching circuit is set to the side on which the image pickup signal from the image pickup device is supplied. When the reproducing mode is set, the switching circuit is set to the side on which the reproduction video signal is supplied. When the instantaneous reproduction is executed in the recording mode, the optical information from an optical information detecting circuit just before the switching circuit is switched from the side on which the image pickup signal is supplied to the side on which the reproduction video signal is supplied is held. An output of the switching circuit is converted into a digital signal. The digital signal is supplied to a digital signal processing circuit to process the digital signal and is also supplied to the optical information detecting circuit to detect the optical information.

摘要翻译： 一种开关电路，用于选择性地产生来自图像拾取装置的图像拾取信号中的任一个和再现视频信号，其中当记录模式被设置时，切换电路被设置在来自图像拾取器的图像拾取信号的一侧 提供设备 当再现模式被设定时，切换电路被设置在提供再现视频信号的一侧。 当在记录模式下执行瞬时再现时，来自开关电路之前的光学信息检测电路的光学信息从提供摄像信号的一侧切换到提供再现视频信号的一侧的光信息是 保持。 开关电路的输出被转换为数字信号。 数字信号被提供给数字信号处理电路以处理数字信号，并且还被提供给光学信息检测电路以检测光学信息。

公开(公告)号：US5182636A

公开(公告)日：1993-01-26

申请号：US654198

申请日：1991-02-12

申请人： Akihiro Kikuchi ,  Toshiharu Kondo ,  Takashi Kohashi ,  Funiaki Kato ,  Katsuaki Hirota

发明人： Akihiro Kikuchi ,  Toshiharu Kondo ,  Takashi Kohashi ,  Funiaki Kato ,  Katsuaki Hirota

IPC分类号： H04N9/04 ,  H04N5/232 ,  H04N5/235 ,  H04N9/73

CPC分类号： H04N9/735 ,  H04N5/23212 ,  H04N5/235 ,  H04N5/2351

摘要： In a color video camera providing color video signal components corresponding to a light image projected on an image pickup, only the levels of the color video signals components which correspond to at least substantially white regions of the light image are detected, and such detected levels of the color video signal components are integrated so as to obtain average values thereof as white-balance detection signals. The color video signal components which correspond to at least substantially white regions of the light image, and thus have their levels detected, may be those which occur during intervals corresponding to a white-balance detecting area positioned to correspond with a selected white area of the light image. Alternatively, the color video signal components may be sampled to provide pixel-by-pixel values thereof, whereupon, only those pixel-by-pixel values which are determined to be within a predetermined range of white as defined by a black body radiation curve are subjected to integration. The predetermined range is made relatively wide when the valve of the color video signal components deviate substantially from a desired white-balance relationship and the range is reduced as the values of the conponents come near to the desired relationship.

摘要翻译： 在提供与投影在图像拾取器上的光图像相对应的彩色视频信号分量的彩色摄像机中，仅检测对应于光图像的至少基本上白色区域的彩色视频信号分量的电平， 彩色视频信号分量被积分，以获得作为白平衡检测信号的平均值。 对应于光图像的至少基本上白色区域并因此检测到其水平的彩色视频信号分量可以是在对应于被定位成对应于所选择的白色区域的白平衡检测区域的间隔期间发生的 光图像。 或者，可以对彩色视频信号分量进行采样以提供其逐像素值，因此，仅由被确定为由黑体辐射曲线限定的白色的预定范围内的像素逐个值是 受到整合。 当彩色视频信号分量的阀基本上偏离期望的白平衡关系时，预定范围相对较宽，并且随着构件的值接近期望的关系，该范围减小。

公开(公告)号：US5235428A

公开(公告)日：1993-08-10

申请号：US985450

申请日：1992-12-03

申请人： Katsuaki Hirota ,  Akihiro Kikuchi ,  Toshiharu Kondo ,  Takashi Kohashi ,  Fumiaki Kato

发明人： Katsuaki Hirota ,  Akihiro Kikuchi ,  Toshiharu Kondo ,  Takashi Kohashi ,  Fumiaki Kato

IPC分类号： H04N5/232

CPC分类号： H04N5/23212

摘要： A focus detection signal is generated from the video signal produced by a video camera by deriving higher frequency components of that video signal, detecting when those higher frequency components exceed a minimum threshold level, sensing when the video signal exceeds a maximum threshold, and integrating those higher frequency components which exceed the minimum threshold, except during an interval when the video signal exceeds the maximum threshold, thereby producing the focus detection signal.

摘要翻译： 通过导出该视频信号的较高频率分量，检测那些较高频率分量何时超过最小阈值电平，感测视频信号超过最大阈值时的视频信号，并将那些 除了在视频信号超过最大阈值的间隔期间，超过最小阈值的较高频率分量，从而产生焦点检测信号。

公开(公告)号：US5093716A

公开(公告)日：1992-03-03

申请号：US653364

申请日：1991-02-01

申请人： Toshiharu Kondo ,  Akihiro Kikuchi ,  Takashi Kohashi ,  Fumiaki Kato ,  Katsuaki Hirota

发明人： Toshiharu Kondo ,  Akihiro Kikuchi ,  Takashi Kohashi ,  Fumiaki Kato ,  Katsuaki Hirota

IPC分类号： G03B7/28 ,  H04N5/232 ,  H04N5/235 ,  H04N9/73

CPC分类号： H04N5/2351 ,  H04N5/23212 ,  H04N5/2352 ,  H04N9/735

摘要： A color video camera providing a digital video signal has an auto-focus detector, an auto-exposure detector and an auto-white balance detector formed as sections of an optical detector circuit which further has serial input and output ports common to the auto-focus, auto-exposure and auto-white balance detectors, and a system controller which is common to the auto-focus, auto-exposure and auto-white balance detectors and provides control signals therefor through the serial input port while receiving focus, exposure and white-balance detection signals through the serial output port from the respective detectors. Further, an improved exposure control system is provided which compensates for abnormal lighting conditions, such as, back-lighting or excessive front-lighting of the scene in the field of view of the camera.

公开(公告)号：US5005086A

公开(公告)日：1991-04-02

申请号：US318138

申请日：1989-03-02

申请人： Koji Iwamoto ,  Kenichi Hamada ,  Katsuaki Hirota

发明人： Koji Iwamoto ,  Kenichi Hamada ,  Katsuaki Hirota

IPC分类号： H04N5/232

CPC分类号： H04N5/23212

摘要： A focus control system for a video camera determines a first gradient indicative of a change in value of a predetermined frequency component in the video signal for first and second positions obtained from the signal of predetermined frequency component in the video signal sampled at the first lens position and at the second lens position, and determines a second gradient indicative of a change in value of the predetermined frequency component in the video signal for second and third lens positions obtained from the signal of the predetermined frequency component in the video signal sampled at the third lens position point, and the speed of longitudinal movement of the lens is controlled in accordance with changes in the first and second gradients, thereby permitting faster focusing and reducing the amount of overrun of the lens during such focusing.