公开(公告)号：US20050179915A1

公开(公告)日：2005-08-18

申请号：US10515216

申请日：2003-05-22

申请人： Masato Tsukada

发明人： Masato Tsukada

IPC分类号： B41J2/525 ,  G06T1/00 ,  H04N1/46 ,  H04N1/60 ,  G06F15/00 ,  G03F3/08

CPC分类号： H04N1/6019

摘要： A color conversion method robust for unstableness of color reproduction in a color image device is provided. A color converting device 103 includes color data input means 1 for reading therein color device values and measured color data thereof of a color image device, a color data storage memory 2 for storing color device values and measured color data, Delaunay diagram constructing and shaping means 8 for constructing a Delaunay diagram using measured data distributed in a three-dimensional color space and deleting unnecessary Delaunay tetrahedrons, a Delaunay tetrahedron storage memory 4 for storing subdivision information of Delaunay tetrahedrons, Delaunay tetrahedron searching and color device value calculating means 9 for searching for a Delaunay tetrahedron including input colors and calculating associated color device values, and paste processing and associated color calculating means 7 for pasting, when the Delaunay tetrahedron including the input colors cannot be retrieved, the input colors to a point on a triangular plane of one of the Delaunay tetrahedrons and calculating associated color device values.

摘要翻译： 提供了一种对于彩色图像装置中的色彩再现不稳定性的颜色转换方法。 颜色转换装置103包括：彩色数据输入装置1，用于在其中读取彩色装置值和彩色图像装置的测量的颜色数据，用于存储彩色装置值和测量的颜色数据的色彩数据存储存储器2，Delaunay图构造和成形装置 8，用于使用分布在三维色彩空间中的测量数据构建Delaunay图并删除不必要的Delaunay四面体，Delaunay四面体存储存储器4，用于存储Delaunay四面体的细分信息，Delaunay四面体搜索和彩色设备值计算装置9，用于搜索 包括输入颜色和计算相关颜色设备值的Delaunay四面体，以及粘贴处理和相关联的颜色计算装置7，用于粘贴，当不能检索到包括输入颜色的Delaunay四面体时，输入颜色到三角形平面上的点 Delaunay四面体和计算关联 ed颜色设备值。

公开(公告)号：US06414756B1

公开(公告)日：2002-07-02

申请号：US09022267

申请日：1998-02-11

申请人： Masato Tsukada

发明人： Masato Tsukada

IPC分类号： G06F1500

CPC分类号： H04N1/6086 ,  H04N1/6052

摘要： A spectral power distribution of an original reference white which is a reference white of an original color space is restored from a color temperature of the original reference white or from a correlated color temperature obtained from the chromaticity of the original reference white when the color temperature is unknown and a spectral power distribution of an aimed reference white which is a reference white of an aimed color space from a color temperature of the aimed reference white or a correlated color temperature obtained from chromaticity of the aimed reference white when the color temperature is unknown. A surface reflectance of an arbitrary color in the original color space is restored by using tristimulus values of the arbitrary color, the spectral power distribution of the original reference white and human color matching function to obtain tristimulus values of a color in the aimed color space. With this, it is possible to make colors in the color image devices having different color temperatures of the reference whites coincident without necessity of constraint of special observing condition influencing human color adaptation and with minimum amount of calculation.

摘要翻译： 作为原始颜色空间的参考白色的原始参考白色的光谱功率分布从原始参考白色的色温或当从原始参考白色的色度获得的相关色温中恢复时，当色温为 未知和目标参考白色的光谱功率分布，其是当色温未知时，从目标参考白色的色温或从目标参考白色的色度获得的相关色温为目标颜色空间的参考白色。 通过使用任意颜色的三刺激值，原始参考白色和人颜色匹配函数的光谱功率分布来恢复原始颜色空间中的任意颜色的表面反射率，以获得目标颜色空间中的颜色的三刺激值。 由此，可以使参考白色的不同色温的彩色图像装置的颜色一致，而不必限制影响人物颜色适应的特殊观察条件并且以最小的计算量。

公开(公告)号：US5774238A

公开(公告)日：1998-06-30

申请号：US424087

申请日：1995-04-19

申请人： Masato Tsukada

发明人： Masato Tsukada

IPC分类号： G06T1/00 ,  H04N1/46 ,  H04N1/60 ,  H04N1/29

CPC分类号： H04N1/6022

摘要： In reproducing an input RGB (red, green, and blue) color defined by particular tristimulus values by CMYK (cyan, magenta, yellow, and black) ink, color samples having a plurality of colors at controlled amounts of CMY (cyan, magenta, and yellow) with respect to a plurality of different amounts of K (black) ink are measured to be used as an original CMYK color reproduction zone. The original CMYK color reproduction zone is divided into individual CMYK color reproduction zones for each respective amount of the K ink. The individual CMYK color reproduction zones are memorized. All of the individual CMYK color reproduction zones are searched in response to the input RGB color defined by the particular tristimulus values to obtain at least one set of the amounts of the CMYK ink corresponding to the input RGB color. When a plurality of sets of the amounts of the CMYK ink are obtained, there sets are memorized as memorized sets of the amounts of the CMYK ink. Two sets of the amounts of the CMYK ink are selected from the memorized sets as selected sets of the amounts of the CMYK ink in accordance with a preselected K ink adjustment coefficient and interpolation is carried out using the K ink adjustment coefficient as a value of an interior division ratio to obtain a single set of the amounts of the CMYK ink corresponding to the input RGB color.

摘要翻译： 在通过CMYK（青色，品红色，黄色和黑色）墨水再现由特定三刺激值定义的输入RGB（红色，绿色和蓝色）颜色时，以受控量的CMY（青色，品红色， 和黄色）相对于多个不同量的K（黑色）墨水被测量用作原始CMYK色彩再现区域。 原始的CMYK色彩再现区被分成用于每个相应量的K墨的各个CMYK色彩再现区。 记忆各个CMYK色彩再现区。 响应于由特定三刺激值定义的输入RGB颜色来搜索所有单独的CMYK颜色再现区域，以获得与输入的RGB颜色相对应的CMYK墨水的量的至少一组。 当获得CMYK墨的量的多组时，将该组存储为CMYK墨的量的存储组。 根据预选的K墨调整系数，从存储组中选择两组CMYK墨的量作为CMYK墨的量的选定组，并且使用K墨调整系数作为 以获得与输入的RGB颜色相对应的CMYK墨水量的单组。

公开(公告)号：US09485391B2

公开(公告)日：2016-11-01

申请号：US12867583

申请日：2009-02-23

申请人： Masato Tsukada

发明人： Masato Tsukada

IPC分类号： G03F3/08 ,  H04N1/60 ,  G06T7/40 ,  H04N1/62

CPC分类号： H04N1/6086 ,  G06T7/90 ,  H04N1/62

摘要： Spectral power distribution of an illumination is restored using color information in a region of the specific object in an input image and a pre-specified representative surface reflectance of the specific object. The surface reflectance in the region of the specific object is restored from the color information and the spectral power distribution of the illumination. The surface reflectance is corrected using three or more pre-specified reference surface reflectances of the specific object. The color in the region of the specific object is calculated from the spectral power distribution of the illumination and the corrected surface reflectance.

摘要翻译： 使用输入图像中的特定对象的区域中的颜色信息和特定对象的预先指定的代表性表面反射率来恢复照明的光谱功率分布。 特定对象的区域中的表面反射率从照明的颜色信息和光谱功率分布恢复。 使用特定对象的三个或更多个预定参考表面反射来校正表面反射率。 根据照明的光谱功率分布和校正的表面反射率计算特定对象区域中的颜色。

公开(公告)号：US08731288B2

公开(公告)日：2014-05-20

申请号：US13140848

申请日：2009-12-28

申请人： Masato Tsukada

发明人： Masato Tsukada

IPC分类号： G06K9/00 ,  G09G5/02

CPC分类号： H04N1/603 ,  G06T1/00 ,  H04N1/6027

摘要： Each pixel of an input image is subjected to first color conversion by means of colorimetric color reproduction and converted to a first color device value of a target color space. Further, a difference DI between a white luminance of an originating color space and a luminance of pixels of the originating color space is calculated. When generating an output image, pixels with a difference DI of 0 keeps the color device value of the originating color space. For the pixels with a difference DI greater than 0, a second color device value is calculated as a color device value of the output image, the second color device value being a sum of the abovementioned color device value and a value which is obtained by multiplying the difference between the first color device value and the abovementioned color device value by a coefficient that is greater than 0 and less than or equal to 1. Due to this, when generating an output image of a target color space from an input image of an originating color space, the color image can be reproduced more brightly while achieving coincident color appearance.

摘要翻译： 输入图像的每个像素通过比色色彩再现进行第一色转换并转换成目标色彩空间的第一颜色设备值。 此外，计算出发颜色空间的白色亮度与起始颜色空间的像素亮度之间的差值DI。 当产生输出图像时，差分DI为0的像素保持着色颜色空间的颜色设备值。 对于差异DI大于0的像素，计算第二颜色设备值作为输出图像的颜色设备值，第二颜色设备值是上述颜色设备值和通过乘法获得的值之和 第一颜色设备值和上述颜色设备值之间的差值大于0且小于或等于1的系数。由此，当从输入图像的输入图像生成目标色彩空间的输出图像时， 起始颜色空间，彩色图像可以更加明亮地再现，同时实现一致的颜色外观。

公开(公告)号：US20130182911A1

公开(公告)日：2013-07-18

申请号：US13824555

申请日：2011-12-02

申请人： Masato Tsukada

发明人： Masato Tsukada

IPC分类号： G06K9/60

CPC分类号： G06K9/60 ,  A01G7/00 ,  G01B11/285 ,  G01N21/251 ,  G01N21/84 ,  G01N2021/8466

摘要： A leaf area index measurement system includes: a reflector placed in a neighborhood of a measurement target plant; imaging means placed at a position where no obstacle is present between the imaging means and the reflector, and for capturing an image of the reflector and outputting the captured image; intensity calculation means for calculating an intensity of light reflected by the reflector, based on the captured image output from the imaging means; and leaf area index calculation means for calculating a leaf area index, based on the intensity of light calculated by the intensity calculation means.

摘要翻译： 叶面积指数测量系统包括：放置在测量目标植物附近的反射器; 成像装置放置在成像装置和反射器之间没有障碍物的位置处，并且用于捕获反射器的图像并输出所捕获的图像; 强度计算装置，用于根据从成像装置输出的拍摄图像计算由反射器反射的光的强度; 以及叶面积指标计算装置，用于根据由强度计算装置计算的光的强度来计算叶面积指数。

公开(公告)号：US20130089256A1

公开(公告)日：2013-04-11

申请号：US13702278

申请日：2011-06-28

申请人： Masato Tsukada

发明人： Masato Tsukada

IPC分类号： G06K9/00

CPC分类号： G06K9/00 ,  G06T11/001 ,  H04N1/62 ,  H04N1/628

摘要： An object area detection means detects an object area which is an area to be subjected to image processing from an input image. A reflection component reconstruction means calculates color information of the object area and a perfect diffusion component, which is a low-frequency component of the object area, and reconstructs a surface reflection component based on the color information and the low-frequency component. An albedo calculation means calculates an albedo, which is color information obtained by removing shading information, which is information that represents luminance of the perfect diffusion component, from the perfect diffusion component. An albedo correction processing means reconstructs a surface reflectance of the object area based on the albedo and the color information in the object area, and then calculates the corrected albedo, which is color information obtained by correcting the albedo based on the surface reflectance.

摘要翻译： 物体区域检测装置从输入图像检测作为要进行图像处理的区域的对象区域。 反射分量重建装置计算对象区域的颜色信息和作为​​对象区域的低频分量的完美扩散分量，并且基于颜色信息和低频分量来重建表面反射分量。 反照率计算装置计算反照率，其为通过从完美扩散分量去除作为表示完全扩散分量的亮度的信息的阴影信息获得的颜色信息。 反照率校正处理装置基于对象区域中的反照率和颜色信息重建对象区域的表面反射率，然后计算校正的反照率，其是通过基于表面反射率校正反照率而获得的颜色信息。

公开(公告)号：US20110268356A1

公开(公告)日：2011-11-03

申请号：US13140848

申请日：2009-12-28

申请人： Masato Tsukada

发明人： Masato Tsukada

IPC分类号： G06K9/00

CPC分类号： H04N1/603 ,  G06T1/00 ,  H04N1/6027

摘要： Each pixel of an input image is subjected to first color conversion by means of colorimetric color reproduction and converted to a first color device value of a target color space. Further, a difference DI between a white luminance of an originating color space and a luminance of pixels of the originating color space is calculated. When generating an output image, pixels with a difference DI of 0 keeps the color device value of the originating color space. For the pixels with a difference DI greater than 0, a second color device value is calculated as a color device value of the output image, the second color device value being a sum of the abovementioned color device value and a value which is obtained by multiplying the difference between the first color device value and the abovementioned color device value by a coefficient that is greater than 0 and less than or equal to 1. Due to this, when generating an output image of a target color space from an input image of an originating color space, the color image can be reproduced more brightly while achieving coincident color appearance.

摘要翻译： 输入图像的每个像素通过比色色彩再现进行第一色转换并转换成目标色彩空间的第一颜色设备值。 此外，计算出发颜色空间的白色亮度与起始颜色空间的像素亮度之间的差值DI。 当产生输出图像时，差分DI为0的像素保持着色颜色空间的颜色设备值。 对于差异DI大于0的像素，计算第二颜色设备值作为输出图像的颜色设备值，第二颜色设备值是上述颜色设备值和通过乘法获得的值之和 第一颜色设备值和上述颜色设备值之间的差值大于0且小于或等于1的系数。由此，当从输入图像的输入图像生成目标色彩空间的输出图像时， 起始颜色空间，彩色图像可以更加明亮地再现，同时实现一致的颜色外观。

公开(公告)号：US20050163369A1

公开(公告)日：2005-07-28

申请号：US10515648

申请日：2003-09-19

申请人： Shigenobu Jyou ,  Masato Tsukada ,  Kazuo Mochizuki ,  Takehiko Yasumi ,  Hisakazu Aoyanagi ,  Michitaka Naitou

发明人： Shigenobu Jyou ,  Masato Tsukada ,  Kazuo Mochizuki ,  Takehiko Yasumi ,  Hisakazu Aoyanagi ,  Michitaka Naitou

IPC分类号： G06T11/60 ,  G06F3/048 ,  G06T1/00 ,  G06T11/00 ,  G09G5/02 ,  G09G5/06 ,  H04N1/46 ,  H04N1/60 ,  H04N1/62 ,  H04N9/64 ,  G06K9/00

CPC分类号： G06T11/001 ,  G09G5/06 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2320/0666 ,  H04N1/622

摘要： In a method of improving quality of color images displayed on or produced from a color image device, a user is made to select a color or an object area of an object of user's interest and color correction is conducted using the selected item as a central color of correction to thereby flexibly achieve color correction. The image color correcting device 1 conducts color correction for an input image 2 and supplying an output image to an image display section 3 and includes object selecting means 10 for selecting an object item or an object color as a color correction object from the output image of the image display section 3 and a color correction processing section 11 for calculating a central color of an object item or an object color thus selected and setting the central color as a central color of correction and correcting the central color to thereby correct the output image into a desired color.

摘要翻译： 在提高在彩色图像装置上显示或从彩色图像装置产生的彩色图像的质量的方法中，使用户选择用户感兴趣的对象的颜色或对象区域，并且使用所选择的项目作为中心颜色进行颜色校正 从而灵活地实现颜色校正。 图像颜色校正装置1对输入图像2进行颜色校正，并将输出图像提供给图像显示部3，并且包括：对象选择装置10，用于从对象物品或物体颜色的输出图像中选择对象物品或对象颜色作为颜色校正对象 图像显示部分3和颜色校正处理部分11，用于计算如此选择的对象项目或对象颜色的中心颜色，并将中心颜色设置为校正的中心颜色并校正中心颜色，从而将输出图像校正为 所需颜色。

公开(公告)号：US5099471A

公开(公告)日：1992-03-24

申请号：US512202

申请日：1990-04-20

申请人： Masato Tsukada ,  Yoshihiro Shimazu

发明人： Masato Tsukada ,  Yoshihiro Shimazu

IPC分类号： H04B10/516 ,  H04B10/524 ,  H04B10/54 ,  H04B10/61

CPC分类号： H04B10/508

摘要： In ultrashort optical pulse modulating equipment optical pulses emitted from a laser in synchronism with input electrical signals are modulated by the electrical signals, the modulated optical pulses are applied to a first-stage pulse interval compressor, in which they are alternately distributed, one by one, by an optical switch to two optical fiber delay lines, two modulated optical pulses delayed by the two optical fiber delay lines are brought close to each other, and modulated optical pulse groups, each composed of two closely spaced modulated optical pulses, are output from an optical coupler. Also in the next-stage pulse interval compressor the modulated optical pulse groups input thereinto are alternately distributed, one by one, by an optical switch to two optical fiber delay lines, in which predetermined delays are caused in the modulated optical pulse groups, respectively, and then they are coupled together by an optical coupler, thereby creating modulated optical pulse groups each composed of four modulated optical pulses. In this way, modulated optical pulse groups are applied to n cascade-connected pulse interval compressors one after another, in which they are brought close to each other two by two and then coupled together, thereby producing modulated optical pulse packets compressed as desired.