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公开(公告)号：US08411991B2
公开(公告)日：2013-04-02
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
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。
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公开(公告)号：US07548264B2
公开(公告)日：2009-06-16
申请号：US10973019
申请日：2004-10-25
申请人： Tomoo Mitsunaga , Yoshikuni Nomura
发明人： Tomoo Mitsunaga , Yoshikuni Nomura
IPC分类号： H04N5/335
CPC分类号： H04N9/045
摘要： An image processing apparatus is provided which includes: an image obtaining unit for obtaining a mosaic image by an image sensor having at least four kinds of filters with different spectral sensitivities, one of the at least four kinds of filters being used for each pixel; and an image processing unit for generating a color image such that intensity information at a position of each pixel, the intensity information corresponding to a number of colors determined by the spectral sensitivities of the filters, is computed for all pixels, from the mosaic image obtained by the image obtaining unit. In a color filter arrangement of the image sensor of the image obtaining unit, filters possessed by pixels arranged in a checkered manner in half of all the pixels have at least some spectral characteristics having a strong correlation with the spectral characteristic of luminance. The image processing unit calculates estimated intensity values of colors possessed by the pixels arranged in the checkered manner at each pixel and calculates a luminance value of each pixel on a basis of the estimated intensity values.
摘要翻译： 提供了一种图像处理装置，其包括：图像获取单元，用于通过具有至少四种具有不同光谱灵敏度的滤色器的图像传感器获得马赛克图像，所述至少四种滤色器中的一种用于每个像素; 以及图像处理单元，用于生成彩色图像，使得从所获得的马赛克图像中计算针对所有像素的每个像素的位置处的强度信息，对应于由滤色器的光谱灵敏度确定的颜色数量的强度信息 由图像获取单元。 在图像获取单元的图像传感器的滤色器装置中，在所有像素的一半中以方格方式布置的像素所具有的滤光器具有与亮度的光谱特性强相关的至少一些光谱特性。 图像处理单元计算在每个像素处以方格布置的像素所拥有的颜色的估计强度值，并且基于估计的强度值计算每个像素的亮度值。
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公开(公告)号：US20070216785A1
公开(公告)日：2007-09-20
申请号：US11714261
申请日：2007-03-06
申请人： Yoshikuni Nomura , Tomoo Mitsunaga
发明人： Yoshikuni Nomura , Tomoo Mitsunaga
IPC分类号： H04N9/64
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.
摘要翻译： 滤色器阵列包括多个滤光器，每个滤光器具有多种类型的光谱灵敏度中的一种，并且被设置在多个像素中相应的一个像素的位置处。 从多个类型中选择的预定类型的滤波器以方格图案布置在像素的位置处，并且其它类型中的一些或全部的滤波器被随机地布置在像素位置处， 不存在预定类型。
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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。
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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.
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公开(公告)号：US07412092B2
公开(公告)日：2008-08-12
申请号：US10974507
申请日：2004-10-27
申请人： Yoshikuni Nomura , Tomoo Mitsunaga
发明人： Yoshikuni Nomura , Tomoo Mitsunaga
IPC分类号： G06K9/00
CPC分类号： H04N9/045
摘要： A texture-intensity computation section computes a texture intensity TH and a texture intensity TV using interpolation values GA and EA. A G interpolation section computes an interpolation value GF using a horizontally adjacent interpolation value GA and a signal R. An E interpolation section computes an interpolation value EF using a vertically adjacent interpolation value EA and the signal R. The G interpolation section computes an interpolation value GU using the interpolation values GA, EA, and EF. The E interpolation section computes an interpolation value EU using the interpolation values GA, EA, and GF. A G+E generation section combines the interpolation values GU and EF to compute (G+E)V. A G+E generation section combines the interpolation values GF and EU to compute (G+E)H. A combining section determines the signal G+E using (G+E)H and (G+E)V, the texture intensities TH and TV.
摘要翻译： 纹理强度计算部分使用内插值GA和EA计算纹理强度T H H和纹理强度T SUB。 AG插值部分使用水平相邻的内插值GA和信号R来计算内插值GF.E内插部分使用垂直相邻的内插值EA和信号R来计算内插值EF .G内插部分计算内插值GU 使用插值GA，EA和EF。 E插值部分使用内插值GA，EA和GF计算内插值EU。 G + E生成部分组合内插值GU和EF以计算（G + E）。 G + E生成部分组合内插值GF和EU来计算（G + E）H H。 组合部分使用（G + E）H H和（G + E）V N确定信号G + E，纹理强度T H 和T V。
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公开(公告)号：US20050088550A1
公开(公告)日：2005-04-28
申请号：US10973019
申请日：2004-10-25
申请人： Tomoo Mitsunaga , Yoshikuni Nomura
发明人： Tomoo Mitsunaga , Yoshikuni Nomura
CPC分类号： H04N9/045
摘要： An image processing apparatus is provided which includes: an image obtaining unit for obtaining a mosaic image by an image sensor having at least four kinds of filters with different spectral sensitivities, one of the at least four kinds of filters being used for each pixel; and an image processing unit for generating a color image such that intensity information at a position of each pixel, the intensity information corresponding to a number of colors determined by the spectral sensitivities of the filters, is computed for all pixels, from the mosaic image obtained by the image obtaining unit. In a color filter arrangement of the image sensor of the image obtaining unit, filters possessed by pixels arranged in a checkered manner in half of all the pixels have at least some spectral characteristics having a strong correlation with the spectral characteristic of luminance. The image processing unit calculates estimated intensity values of colors possessed by the pixels arranged in the checkered manner at each pixel and calculates a luminance value of each pixel on a basis of the estimated intensity values.
摘要翻译： 提供了一种图像处理装置，其包括：图像获取单元，用于通过具有至少四种具有不同光谱灵敏度的滤色器的图像传感器获得马赛克图像，所述至少四种滤色器中的一种用于每个像素; 以及图像处理单元，用于生成彩色图像，使得从所获得的马赛克图像中计算针对所有像素的每个像素的位置处的强度信息，对应于由滤色器的光谱灵敏度确定的颜色数量的强度信息 由图像获取单元。 在图像获取单元的图像传感器的滤色器装置中，在所有像素的一半中以方格方式布置的像素所具有的滤光器具有与亮度的光谱特性强相关的至少一些光谱特性。 图像处理单元计算在每个像素处以方格布置的像素所拥有的颜色的估计强度值，并且基于估计的强度值计算每个像素的亮度值。
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公开(公告)号：US08339487B2
公开(公告)日：2012-12-25
申请号：US12586000
申请日：2009-09-30
申请人： Yoshikuni Nomura , Tomoo Mitsunaga
发明人： Yoshikuni Nomura , Tomoo Mitsunaga
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.
摘要翻译： 滤色器阵列包括多个滤光器，每个滤光器具有多种类型的光谱灵敏度中的一种，并且被设置在多个像素中相应的一个像素的位置处。 从多个类型中选择的预定类型的滤波器以方格图案布置在像素的位置处，并且其它类型中的一些或全部的滤波器被随机地布置在像素位置处， 不存在预定类型。
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公开(公告)号：US07710476B2
公开(公告)日：2010-05-04
申请号：US11714261
申请日：2007-03-06
申请人： Yoshikuni Nomura , Tomoo Mitsunaga
发明人： Yoshikuni Nomura , Tomoo Mitsunaga
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.
摘要翻译： 滤色器阵列包括多个滤光器，每个滤光器具有多种类型的光谱灵敏度中的一种，并且被设置在多个像素中相应的一个像素的位置处。 从多个类型中选择的预定类型的滤波器以方格图案布置在像素的位置处，并且其它类型中的一些或全部的滤波器被随机地布置在像素位置处， 不存在预定类型。
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公开(公告)号：US20130077862A1
公开(公告)日：2013-03-28
申请号：US13702767
申请日：2011-05-09
IPC分类号： G06K9/32
CPC分类号： G06K9/32 , G06T5/002 , G06T5/004 , G06T2207/20192 , G06T2207/20221 , H04N9/045
摘要： The present invention provides an apparatus and a method to perform an interpolation process of a color mosaic image generated through an imaging process by a single-plate color imaging element. The color mosaic image generated through the imaging process by the single-plate color imaging element is input, estimation is performed for a pixel value low frequency component and a noise high frequency component corresponding to a pixel interpolation position, and calculation for a pixel value at the pixel interpolation position is performed by applying an addition result thereof. An edge-adaptive interpolation processing unit calculates a pixel value at the pixel interpolation position by using a pixel value of a reference pixel located in an edge direction. A blend processing unit calculates a final interpolation pixel value by blending the edge-adaptive interpolation pixel value and the addition result of the pixel value low frequency component and the noise high frequency component corresponding to the pixel interpolation position in accordance with flatness at the pixel interpolation position.
摘要翻译： 本发明提供一种通过单板彩色成像元件通过成像处理产生的彩色马赛克图像的内插处理的装置和方法。 输入通过单板彩色成像元件的成像处理产生的彩色马赛克图像，对与像素插值位置对应的像素值低频分量和噪声高频分量进行估计，并计算像素值 通过应用其相加结果来执行像素插值位置。 边缘自适应插值处理单元通过使用位于边缘方向上的参考像素的像素值来计算像素插值位置处的像素值。 混合处理单元通过根据像素插值的平坦度，混合边缘自适应内插像素值和像素值低频分量的相加结果和对应于像素插值位置的噪声高频分量来计算最终内插像素值 位置。
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