公开(公告)号：US08384805B2

公开(公告)日：2013-02-26

申请号：US12879877

申请日：2010-09-10

申请人： Teppei Kurita ,  Yoshikuni Nomura ,  Shun Kaizu ,  Satoru Takeuchi ,  Masanori Kasai

发明人： Teppei Kurita ,  Yoshikuni Nomura ,  Shun Kaizu ,  Satoru Takeuchi ,  Masanori Kasai

IPC分类号： H04N5/217

CPC分类号： H04N5/3355 ,  H04N5/2355

摘要： An image processing device includes an image correction unit which receives a synthesized image and pseudo color pixel information indicating a pseudo color pixel position included in the synthesized image and executes pixel value correction. The image correction unit selects non-pseudo color pixels as reference pixels from a reference region set in a surrounding region of the pixel to be corrected, sets a similarity weight coefficient in which a large weight is set as a pixel value of the reference pixel that is close to a pixel value of the pixel to be corrected and a pixel position weight coefficient in which a large weight is set as the pixel value of the reference pixel that is near a pixel position of the pixel to be corrected, with respect to the reference pixels, and determines a correction pixel value of the pixel to be corrected by a weighted summation process.

摘要翻译： 图像处理装置包括图像校正单元，其接收合成图像和表示合成图像中包含的伪彩色像素位置的伪彩色像素信息，并执行像素值校正。 图像校正单元从设置在要校正像素的周围区域的参考区域中选择非伪彩色像素作为参考像素，将相对重量系数设定为参考像素的像素值， 接近于要校正的像素的像素值，并且相对于要校正的像素的像素位置附近的像素位置权重系数，其中设置较大权重作为参考像素的像素值， 并且通过加权求和处理确定要校正的像素的校正像素值。

公开(公告)号：US08804012B2

公开(公告)日：2014-08-12

申请号：US13699935

申请日：2011-05-09

申请人： Shun Kaizu ,  Yoshikuni Nomura

发明人： Shun Kaizu ,  Yoshikuni Nomura

IPC分类号： H04N9/64 ,  H04N5/228 ,  H04N3/14 ,  H04N5/335 ,  H04N9/04

CPC分类号： H04N9/646 ,  H04N5/235 ,  H04N9/045

摘要： Provided are an apparatus and method for executing sensitivity difference correction processing of an image signal, which is generated by a single plate-type image sensor through a color filter. The sensitivity difference correction is executed for Gr and Gb signals included the image signal, for example, an RGB signal, which is generated by the single plate-type image sensor through the color filter. A pixel value of a color filter unit which has the same color as a correction target pixel and is present in surroundings of the correction target pixel is acquired. An additional value is calculated by adding a difference between weighted mean pixel values “a” and “b” of two kinds of pixel groups “A” and “B” classified according to positions of pixels to the pixel value of the correction target pixel in which the weighted mean values correspond to distances of the pixel groups from the correction target pixel. A mean value of the pixel value of the correction target pixel and the additional value is calculated as a corrected pixel value of the correction target pixel.

摘要翻译： 提供了一种用于通过彩色滤光器由单个平板型图像传感器生成的图像信号的灵敏度差异校正处理的装置和方法。 对包括图像信号的Gr和Gb信号执行灵敏度差异校正，例如，通过滤色器由单板型图像传感器生成的RGB信号。 获取具有与校正对象像素相同的颜色并存在于校正对象像素的周围的滤色器单元的像素值。 通过将根据像素的位置分类的两种像素组“A”和“B”的加权平均像素值“a”和“b”之间的差加到校正对象像素的像素值中来计算附加值 加权平均值对应于像素组与校正目标像素的距离。 校正对象像素的像素值和附加值的平均值被计算为校正对象像素的校正像素值。

公开(公告)号：US20130076939A1

公开(公告)日：2013-03-28

申请号：US13699935

申请日：2011-05-09

申请人： Shun Kaizu ,  Yoshikuni Nomura

发明人： Shun Kaizu ,  Yoshikuni Nomura

IPC分类号： H04N5/235

CPC分类号： H04N9/646 ,  H04N5/235 ,  H04N9/045

摘要： Provided are an apparatus and method for executing sensitivity difference correction processing of an image signal, which is generated by a single plate-type image sensor through a color filter. The sensitivity difference correction is executed for Gr and Gb signals included the image signal, for example, an RGB signal, which is generated by the single plate-type image sensor through the color filter. A pixel value of a color filter unit which has the same color as a correction target pixel and is present in surroundings of the correction target pixel is acquired. An additional value is calculated by adding a difference between weighted mean pixel values “a” and “b” of two kinds of pixel groups “A” and “B” classified according to positions of pixels to the pixel value of the correction target pixel in which the weighted mean values correspond to distances of the pixel groups from the correction target pixel. A mean value of the pixel value of the correction target pixel and the additional value is calculated as a corrected pixel value of the correction target pixel.

摘要翻译： 提供了一种用于通过彩色滤光器由单个平板型图像传感器生成的图像信号的灵敏度差异校正处理的装置和方法。 对包括图像信号的Gr和Gb信号执行灵敏度差异校正，例如，通过滤色器由单板型图像传感器生成的RGB信号。 获取具有与校正对象像素相同的颜色并存在于校正对象像素的周围的滤色器单元的像素值。 通过将根据像素的位置分类的两种像素组A和B的加权平均像素值a和b之间的差加到校正目标像素的像素值中来计算附加值，其中加权平均值对应于距离 的来自校正对象像素的像素组。 校正对象像素的像素值和附加值的平均值被计算为校正对象像素的校正像素值。

公开(公告)号：US20120314946A1

公开(公告)日：2012-12-13

申请号：US13482454

申请日：2012-05-29

申请人： Yoshikuni Nomura ,  Masayuki Tachi

发明人： Yoshikuni Nomura ,  Masayuki Tachi

IPC分类号： G06T5/00 ,  G06K9/40

CPC分类号： H04N5/208 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/20028 ,  G06T2207/20192 ,  H04N5/21

摘要： Provided is an image processing apparatus including an infinite impulse response (IIR) mean value calculation section for calculating a mean value of signal values of reference pixels around a correction target pixel according to an IIR filter application process, an IIR variance value calculation section for calculating a variance value of the signal values of the reference pixels around the correction target pixel according to the IIR filter application process, an edge-preserving smoothing processing section for receiving the mean and variance values of the reference pixels and executing an edge-preserving smoothing process to which the mean and variance values are applied, and an IIR filter coefficient calculation section for updating an IIR filter coefficient to be applied to the IIR mean value calculation section and the IIR variance value calculation section according to a signal value of a pixel constituting an image.

摘要翻译： 提供了一种图像处理装置，包括：无限脉冲响应（IIR）平均值计算部分，用于根据IIR滤波器应用处理计算校正目标像素周围的参考像素的信号值的平均值，用于计算 根据IIR滤波器应用处理在校正对象像素周围的参考像素的信号值的方差值，边缘保持平滑处理部分，用于接收参考像素的平均值和方差值，并执行边缘保持平滑处理 以及IIR滤波器系数计算部分，用于根据组成一个像素的像素的信号值来更新要施加到IIR平均值计算部分和IIR方差值计算部分的IIR滤波器系数 图片。

公开(公告)号：US07750959B2

公开(公告)日：2010-07-06

申请号：US11713640

申请日：2007-03-05

申请人： Yoshikuni Nomura

发明人： Yoshikuni Nomura

IPC分类号： H04N3/14 ,  H04N5/335

CPC分类号： H04N9/045 ,  H01L27/14621

摘要： A method for manufacturing a color image pickup device including a pixel group in which a plurality of pixels each having a photoelectric conversion element and a color filter are arranged includes the steps of generating a random array pattern in which color filters of at least one color component are randomly arranged for an arbitrary pixel position, so that the occurrence frequency of color filters of a color component in a region having a predetermined size including the arbitrary pixel position is within a desired error range, generating a regular array pattern in which color filters of at least one color component are regularly arranged, and generating a color filter pattern by compositing in a regular manner the random array pattern generated in the random array generating step and the regular array pattern generated in the regular array generating step.

摘要翻译： 一种制造彩色图像拾取装置的方法，其包括其中排列有多个具有光电转换元件和滤色器的像素的像素组包括以下步骤：产生随机阵列图案的步骤，其中至少一个颜色分量 随机地排列任意的像素位置，使得具有包括任意像素位置的预定尺寸的区域中的颜色分量的滤色器的出现频率在期望的误差范围内，产生规则的阵列图案，其中滤色器 规则地布置至少一个颜色分量，并且通过以规则方式合成在随机阵列生成步骤中生成的随机阵列图案和在常规阵列生成步骤中生成的规则阵列图案来生成滤色器图案。

公开(公告)号：US20070296841A1

公开(公告)日：2007-12-27

申请号：US11713640

申请日：2007-03-05

申请人： Yoshikuni Nomura

发明人： Yoshikuni Nomura

IPC分类号： H04N3/14

CPC分类号： H04N9/045 ,  H01L27/14621

摘要： A method for manufacturing a color image pickup device including a pixel group in which a plurality of pixels each having a photoelectric conversion element and a color filter are arranged includes the steps of generating a random array pattern in which color filters of at least one color component are randomly arranged for an arbitrary pixel position, so that the occurrence frequency of color filters of a color component in a region having a predetermined size including the arbitrary pixel position is within a desired error range, generating a regular array pattern in which color filters of at least one color component are regularly arranged, and generating a color filter pattern by compositing in a regular manner the random array pattern generated in the random array generating step and the regular array pattern generated in the regular array generating step.

摘要翻译： 一种制造彩色图像拾取装置的方法，其包括其中排列有多个具有光电转换元件和滤色器的像素的像素组包括以下步骤：产生随机阵列图案的步骤，其中至少一个颜色分量 随机地排列任意的像素位置，使得具有包括任意像素位置的预定尺寸的区域中的颜色分量的滤色器的出现频率在期望的误差范围内，产生规则的阵列图案，其中滤色器 规则地布置至少一个颜色分量，并且通过以规则方式合成在随机阵列生成步骤中生成的随机阵列图案和在常规阵列生成步骤中生成的规则阵列图案来生成滤色器图案。

公开(公告)号：US08369621B2

公开(公告)日：2013-02-05

申请号：US12545389

申请日：2009-08-21

申请人： Yoshikuni Nomura

发明人： Yoshikuni Nomura

IPC分类号： G06K9/46

CPC分类号： G06K9/4642 ,  G06K9/6212

摘要： An image processing apparatus includes: a first distribution calculation unit calculating a distribution of luminance gradient vectors in a first local area that includes a feature point on an image; a second distribution calculation unit calculating distributions of the luminance gradient vectors in second local areas close to the feature point on the image; a selection unit comparing the distribution of the luminance gradient vectors of the first local area with the distributions of the luminance gradient vectors of the second local areas to select the most different distribution of the luminance gradient vectors of the second local area; and a feature descriptor calculation unit calculating a feature descriptor at the feature point on the basis of the distribution of the luminance gradient vectors of the first local area and the distribution of the luminance gradient vectors of the second local area selected by the selection unit.

摘要翻译： 一种图像处理装置包括：第一分布计算单元，计算包括图像上的特征点的第一局部区域中的亮度梯度矢量的分布; 第二分布计算单元，计算靠近图像上的特征点的第二局部区域中的亮度梯度矢量的分布; 选择单元，比较第一局部区域的亮度梯度向量的分布与第二局部区域的亮度梯度向量的分布，以选择第二局部区域的亮度梯度向量的最不同的分布; 以及特征描述符计算单元，其基于第一局部区域的亮度梯度向量的分布和由选择单元选择的第二局部区域的亮度梯度向量的分布来计算特征点处的特征描述符。

公开(公告)号：US08350938B2

公开(公告)日：2013-01-08

申请号：US12801018

申请日：2010-05-17

申请人： Yoshikuni Nomura

发明人： Yoshikuni Nomura

IPC分类号： H04N3/14 ,  H04N5/335

CPC分类号： H04N9/045 ,  H01L27/14621

摘要： A method for manufacturing a color image pickup device including a pixel group in which a plurality of pixels each having a photoelectric conversion element and a color filter are arranged includes the steps of generating a random array pattern in which color filters of at least one color component are randomly arranged for an arbitrary pixel position, so that the occurrence frequency of color filters of a color component in a region having a predetermined size including the arbitrary pixel position is within a desired error range, generating a regular array pattern in which color filters of at least one color component are regularly arranged, and generating a color filter pattern by compositing in a regular manner the random array pattern generated in the random array generating step and the regular array pattern generated in the regular array generating step.

摘要翻译： 一种制造彩色图像拾取装置的方法，其包括其中排列有多个具有光电转换元件和滤色器的像素的像素组包括以下步骤：产生随机阵列图案的步骤，其中至少一个颜色分量 随机地排列任意的像素位置，使得具有包括任意像素位置的预定尺寸的区域中的颜色分量的滤色器的出现频率在期望的误差范围内，产生规则的阵列图案，其中滤色器 规则地布置至少一个颜色分量，并且通过以规则方式合成在随机阵列生成步骤中生成的随机阵列图案和在常规阵列生成步骤中生成的规则阵列图案来生成滤色器图案。

公开(公告)号：US20110150356A1

公开(公告)日：2011-06-23

申请号：US12967801

申请日：2010-12-14

申请人： Kensei JO ,  Yoshikuni Nomura ,  Tomoo Mitsunaga

发明人： Kensei JO ,  Yoshikuni Nomura ,  Tomoo Mitsunaga

IPC分类号： G06K9/44

CPC分类号： G06T5/007 ,  G06T5/002 ,  G06T2207/10024 ,  G06T2207/20021 ,  G06T2207/20192

摘要： An image processing apparatus includes: a characteristic value calculation unit calculating a block luminance average value, which is an average value of luminance values in each of spatial blocks obtained by dividing an input image in a space direction, and a block luminance dispersion, which is a dispersion of the luminance values in each of the spatial blocks; and an edge-preserving smoothing unit calculating a general luminance value of pixels of the input image by setting a value obtained by approximately calculating a weighted average value of the luminance values of a noticed block containing noticed pixels of the input image, on the assumption that a distribution of the luminance values of each of the spatial blocks conforms to a Gaussian distribution based on the block luminance average value and the block luminance dispersion of each of the spatial blocks, as the general luminance value of the noticed pixels.

摘要翻译： 图像处理装置包括：特征值计算单元，计算作为在空间方向上划分输入图像而获得的每个空间块中的亮度值的平均值和块亮度色散的块亮度平均值， 亮度值在每个空间块中的色散; 以及边缘保持平滑单元，通过设置通过近似计算包含输入图像的注意像素的注意块的亮度值的加权平均值而获得的值来计算输入图像的像素的一般亮度值，假设 每个空间块的亮度值的分布与基于块亮度平均值和每个空间块的块亮度色散的高斯分布一致，作为注意像素的一般亮度值。

公开(公告)号：US20100091147A1

公开(公告)日：2010-04-15

申请号：US12586000

申请日：2009-09-30

申请人： Yoshikuni Nomura ,  Tomoo Mitsunaga

发明人： Yoshikuni Nomura ,  Tomoo Mitsunaga

IPC分类号： H04N5/335

CPC分类号： F21V9/08 ,  H01L27/146 ,  H04N9/045

摘要： A color filter array includes a plurality of filters, each having one of a plurality of types of spectral sensitivity and being disposed at the location of a corresponding one of a plurality of pixels. The filters of a predetermined type selected from among the plurality of types are arranged at the locations of the pixels in a checkered pattern, and the filters of some or all of the other types are randomly arranged at the pixel locations at which the filters of the predetermined type are not present.