公开(公告)号：US08570407B2

公开(公告)日：2013-10-29

申请号：US12993027

申请日：2009-06-16

申请人： Masaru Muramatsu

发明人： Masaru Muramatsu

IPC分类号： H04N5/202

CPC分类号： H04N5/2351 ,  H04N5/243

摘要： Image processing capable of improving bright and dark part gradation is performed while maintaining apparent contrast by providing an imaging unit generating image data, a selecting unit selecting either a first mode not performing a correction on a dark part gradation of the image data or a second mode performing the correction, a gradation conversion processing unit performing gradation conversion processing according to a first characteristic when the first mode is selected and performing the gradation conversion processing according to a second characteristic which includes a characteristic achieving, for a same input level, an output level lower than the first characteristic and includes a characteristic changing contrast when the second mode is selected, and a correcting unit performing the correction to improve a lightness in the dark part gradation of the image data according to the second characteristic by the gradation conversion processing unit when the second mode is selected.

摘要翻译： 通过提供产生图像数据的成像单元，同时保持明显的对比度来执行能够改善明暗部分灰度的图像处理;选择单元，选择不对图像数据的暗部灰度进行校正的第一模式或第二模式 灰度转换处理单元，当选择第一模式时，根据第一特性执行灰度转换处理，并根据第二特性执行灰度转换处理，该第二特性包括在相同输入电平下实现输出电平的特性 低于第一特性，并且当选择第二模式时包括特征改变对比度;以及校正单元，其通过灰度转换处理单元执行根据第二特性的图像数据的暗部灰度的亮度的校正， 第二种模式是选择 ed。

公开(公告)号：US20110286680A1

公开(公告)日：2011-11-24

申请号：US13086868

申请日：2011-04-14

申请人： Masaru MURAMATSU

发明人： Masaru MURAMATSU

IPC分类号： G06K9/40

CPC分类号： H04N1/407 ,  G06T5/008 ,  H04N1/6027 ,  H04N5/232

摘要： A non-transitory computer-readable storage medium storing an image processing program causing a computer to execute an image processing on image data to be processed, the image processing program including an obtaining step obtaining the image data, a gradation conversion processing step performing gradation conversion processing on the image data at an intermediate part of gradation according to input/output characteristics having characteristics to which characteristics to reduce a contrast are added, and a correcting step making a correction to enhance a local contrast indicative of contrast at a local part of an image for the image data subjected to the gradation conversion processing by using a gain curve in which a degree of enhancement changes in accordance with luminance information of a pixel to be processed, and thus, bright and dark part gradations are improved while suppressing a change in a hue and color saturation as well as maintaining an apparent contrast.

摘要翻译： 一种非暂时性计算机可读存储介质，其存储使计算机对要处理的图像数据执行图像处理的图像处理程序，所述图像处理程序包括获取图像数据的获取步骤，执行灰度转换的灰度转换处理步骤 根据具有降低对比度特性的特性的灰度中间部分对图像数据进行处理，以及校正步骤，进行校正，以增强指示对比度局部的对比度的局部对比度 通过使用根据要处理的像素的亮度信息的增强度变化的增益曲线，并且因此明暗部分灰度被改善，从而改善了经过灰度转换处理的图像数据的图像，同时抑制了改变 色调和色彩饱和度以及保持明显的对比度。

公开(公告)号：US07978233B2

公开(公告)日：2011-07-12

申请号：US12073346

申请日：2008-03-04

申请人： Masaru Muramatsu

发明人： Masaru Muramatsu

IPC分类号： H04N9/68

CPC分类号： H04N5/235

摘要： An image processing apparatus includes an input section, an adjusting section, and a correcting section.The input section acquires image data and information about subject condition at the time of photographing the image data. The adjusting section determines a brightness enhancement amount of dark area gradation of the image data, depending on the subject condition at the time of photographing. The correcting section performs image correction of brightness enhancement on the dark area gradation of the image data according to the brightness enhancement amount determined by the adjusting section.

摘要翻译： 图像处理装置包括输入部分，调整部分和校正部分。 输入部分拍摄图像数据时获取图像数据和关于被摄体条件的信息。 调整部根据拍摄时的拍摄对象条件来决定图像数据的暗区灰度的亮度增强量。 校正部根据由调整部确定的亮度增强量，对图像数据的暗区灰度进行亮度增强的图像校正。

公开(公告)号：US20110019023A1

公开(公告)日：2011-01-27

申请号：US12835937

申请日：2010-07-14

申请人： Masaru MURAMATSU

发明人： Masaru MURAMATSU

IPC分类号： H04N5/228 ,  G06K9/00

CPC分类号： H04N5/202 ,  G06T5/009 ,  H04N5/23229

摘要： An obtaining unit obtains image data. An image processing unit performs, on the image data, image processing including gradation conversion processing according to an input/output characteristic defined by a gradation curve formed only of an exponential component represented by y=k·xn, where x is an input, y is an output, and k, n are coefficients. A calculating unit performs calculation for correction to improve lightness of dark area gradation of the image data. A correcting unit performs correction to improve lightness of the dark area gradation of the image data on which the image processing is performed by the image processing unit based on a calculation result of the calculating unit. Accordingly, image processing capable of generating a preferred image can be performed when various types of image processing are performed before and after compression of the dark area gradation.

摘要翻译： 获取单元获取图像数据。 图像处理单元对图像数据执行包括根据由仅由y = k·xn表示的指数分量形成的灰度曲线定义的输入/输出特性的灰度转换处理的图像处理，其中x是输入，y 是输出，k，n是系数。 计算单元进行校正的计算，以改善图像数据的暗区域灰度的亮度。 校正单元基于计算单元的计算结果执行校正以改善由图像处理单元执行图像处理的图像数据的暗区域灰度的亮度。 因此，当在暗区灰度压缩之前和之后执行各种类型的图像处理时，可以执行能够产生优选图像的图像处理。

公开(公告)号：US07375758B2

公开(公告)日：2008-05-20

申请号：US10761227

申请日：2004-01-22

申请人： Masaru Muramatsu

发明人： Masaru Muramatsu

IPC分类号： H04N5/238 ,  H04N5/202

CPC分类号： H04N5/2351 ,  H04N5/202 ,  H04N5/2352

摘要： An electronic camera includes an image-capturing element that captures a subject image and outputs image-capturing signals each corresponding to a pixel; and a control device that executes gradation correction on the image-capturing signals output by the image-capturing element. In the electronic camera, the image-capturing element is split into a plurality of pixel areas each containing a plurality of pixels; and the control device calculates average values of image-capturing signal values in the pixel areas, which are output by the image-capturing element prior to a shutter release, determines an exposure quantity and gradation characteristics based upon the average values having been calculated each in correspondence to one of the plurality of pixel areas, engages the image-capturing element to capture an image at the exposure quantity having been determined in response to the shutter release and executes gradation correction on image-capturing signals output by the image-capturing element in conformance to the gradation characteristics having been determined.

摘要翻译： 电子照相机包括拍摄被摄体图像并输出与像素对应的图像拍摄信号的摄像元件; 以及对由图像拍摄元件输出的图像拍摄信号执行灰度校正的控制装置。 在电子照相机中，图像拍摄元件被分成多个像素区域，每个像素区域包含多个像素; 并且控制装置计算在快门释放之前由图像拍摄元件输出的像素区域中的图像拍摄信号值的平均值，基于每个中计算出的平均值来确定曝光量和灰度特性 对应于多个像素区域中的一个像素区域，与图像拍摄元件接合以以响应于快门释放确定的曝光量捕获图像，并且对由图像捕获元件输出的图像捕获信号执行灰度校正 符合已经确定的灰度特性。

公开(公告)号：US06714734B2

公开(公告)日：2004-03-30

申请号：US10262903

申请日：2002-10-03

申请人： Masaru Muramatsu

发明人： Masaru Muramatsu

IPC分类号： G03B1505

CPC分类号： G03B15/05 ,  G03B2215/0503

摘要： A camera comprises a storage-type photometering sensor that detects some of light from a subject; a control device that controls an auxiliary illumination device so as to perform a preliminary light emission through a single-shot light emission and controls the storage-type photometering sensor so as to detect the subject light stored over a storage period matching a length of time over which light is emitted during the preliminary light emission; and a setting device that sets a light emission condition under which the auxiliary illumination device is to emit light during a flash photographing operation based upon detection results obtained at the storage-type photometering sensor.

摘要翻译： 相机包括：存储型测光传感器，其检测来自被摄体的一些光; 控制装置，其控制辅助照明装置，以便通过单次发光执行初步发光，并控制存储型测光传感器，以便检测在与时间长度相匹配的存储周期中存储的对象光 在初步发光期间发出光; 以及设定装置，其基于在存储型测光传感器获得的检测结果，在闪光拍摄操作期间设定辅助照明装置发光的发光条件。

公开(公告)号：US5602615A

公开(公告)日：1997-02-11

申请号：US499709

申请日：1995-07-07

申请人： Masaru Muramatsu ,  Shinichi Tsukada

发明人： Masaru Muramatsu ,  Shinichi Tsukada

IPC分类号： G01J1/44 ,  G03B7/28 ,  G03B7/08

CPC分类号： G03B7/09979

摘要： A photometric device, used in an optical apparatus such as a camera, which includes photometric elements to measure photometric values according to plural regions of a subject field, and corrects the photometric values of photometric elements corresponding to specific regions within the plural regions based on the photometric values of regions outside the specific region and on previously set correction coefficients according to each region. The location of the specific regions on the subject field may be adjusted either manually or automatically based upon a focus adjustment state of a focus detection unit.

摘要翻译： 一种用于诸如照相机的光学装置的测光装置，其包括测光元件以根据被摄场的多个区域测量光度值，并且基于所述多个区域中的特定区域对应的测光元件的光度值进行校正 在特定区域以外的区域的光度值和根据每个区域的先前设定的校正系数。 可以基于焦点检测单元的焦点调整状态来手动地或自动地调整对象场上的特定区域的位置。

公开(公告)号：US5239332A

公开(公告)日：1993-08-24

申请号：US734208

申请日：1991-07-22

申请人： Masaru Muramatsu ,  Akira Ogasawara

发明人： Masaru Muramatsu ,  Akira Ogasawara

IPC分类号： G02B7/36

CPC分类号： G02B7/36

摘要： There is provided an automatic focusing device of a camera which accurately adjusts focus in a short time on the basis of recent and past information created in accordance with a focused object. The position of the object is predicted on the basis of the recent information and past information calculated at predetermined time intervals. It is therefore possible to accurately predict the position of the object in a short calculation time and to reliably determine whether the object is at rest or in motion. During a servo operation, a tracking servo operation does not begin erroneously for an object at rest. Once the tracking servo operation begins, because of hysteresis for determining whether the object is moving, the lens continuously and stably tracks the object. During the tracking servo operation, there is no delay of the time intervals at which the distance between the lens and the object is measured, and a distance moved by the object can be corrected and automatically adjusted. The lens can thus be moved smoothly in response to the movement of the object.

公开(公告)号：US4577270A

公开(公告)日：1986-03-18

申请号：US658412

申请日：1984-10-05

申请人： Akira Sugano ,  Masaru Muramatsu ,  Sachio Yamanobe ,  Yoshio Sato

发明人： Akira Sugano ,  Masaru Muramatsu ,  Sachio Yamanobe ,  Yoshio Sato

IPC分类号： F23N5/02 ,  F01K13/02 ,  F22B35/00 ,  F22B35/18 ,  F23N1/00 ,  F23N5/00 ,  F23N5/18 ,  G05B13/04 ,  G06F15/46

CPC分类号： F01K13/02 ,  G05B13/042

摘要： A plant model is constructed with a mathematical procedure known as the Kalman filter. The presumed value or predictive value of a certain parameter of a plant is compared with the actually-measured value of the parameter, and the state transition matrix and drive matrix of the Kalman filter are corrected. When a parameter which is a direct controlled object is difficult of actual measurement, the model is corrected by utilizing another parameter whose actual measurement value is easily obtained. When the plant has a feedback control system based on the proportional-plus-integral control, the gain of the system is corrected in correspondence with the corrections of the elements of the matrices.

摘要翻译： 使用称为卡尔曼滤波器的数学过程构建植物模型。 将工厂的某个参数的假设值或预测值与参数的实际测量值进行比较，并校正卡尔曼滤波器的状态转移矩阵和驱动矩阵。 当直接控制对象的参数难以实际测量时，通过利用容易获得实际测量值的另一个参数来校正模型。 当工厂具有基于比例 - 积分控制的反馈控制系统时，系统的增益与矩阵元素的校正相对应地进行校正。

公开(公告)号：US09294685B2

公开(公告)日：2016-03-22

申请号：US13177930

申请日：2011-07-07

申请人： Masaru Muramatsu

发明人： Masaru Muramatsu

IPC分类号： H04N5/235 ,  H04N5/202 ,  G06T5/00 ,  H04N1/387 ,  H04N1/407

CPC分类号： H04N5/2355 ,  G06T5/009 ,  G06T2207/10144 ,  G06T2207/20208 ,  G06T2207/20212 ,  H04N1/3871 ,  H04N1/407 ,  H04N5/202

摘要： In an image processing apparatus performing synthetic processing on N number of images (where N is an integer of two or larger) being captured from a same photographic scene under mutually different exposure conditions to generate a synthetic image with a higher dynamic range than the N number of images, obtaining the N number of images, and performing low-pass processing on at least one image among the N number of images to generate a low-pass image. Then, a weighting amount in the synthetic processing is decided based on the low-pass image, and the synthetic processing is performed on the N number of images according to the decided weighting amount to generate the synthetic image. Accordingly, a natural synthetic image with fewer changes in contrast, hue, and chroma is generated in a simple configuration when generating the synthetic image.

摘要翻译： 在对相互不同的曝光条件下从相同摄影场景拍摄的N张图像（其中N为2以上的整数）进行合成处理的图像处理装置中，生成动画范围比N数更多的合成图像 获得N个图像，并对N个图像中的至少一个图像进行低通处理以产生低通图像。 然后，基于低通图像来决定合成处理中的加权量，并且根据所确定的加权量对N个图像执行合成处理以生成合成图像。 因此，当生成合成图像时，以简单的配置产生具有较小的对比度变化，色相和色度变化的天然合成图像。