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    • 1. 发明申请
    • Image transforming method, image transforming device and multiprojection system
    • 图像变换方法,图像变换装置和多重投影系统
    • US20050271299A1
    • 2005-12-08
    • US11140709
    • 2005-05-31
    • Takeyuki AjitoKenro OhsawaTakanori Ishizawa
    • Takeyuki AjitoKenro OhsawaTakanori Ishizawa
    • G06T3/00G03B21/26G06K9/40G06K9/76H04N1/387H04N5/262H04N5/66H04N5/74
    • G06T3/005
    • An image transforming device wherein one input image or a plurality of input images captured or created under different condition are geometrically transformed to create an output image, including: an input geometrical profile calculating section to calculate an input geometrical profile directing to a coordinate relation between pixel positions of the input image and polar coordinate positions of the input image in view of a given observing position; an output geometrical profile calculating section to calculate an output geometrical profile directing to a coordinate relation between pixel positions of the output image and polar coordinate positions of the output image in view of the observing position; and geometrical transforming section to geometrically transform the input image on the input geometrical profile and the output geometrical profile, thereby calculating the output image.
    • 一种图像变换装置,其中在不同条件下捕获或创建的一个输入图像或多个输入图像被几何变换以产生输出图像,其包括:输入几何轮廓计算部分,用于计算指向像素之间的坐标关系的输入几何轮廓 鉴于给定的观察位置,输入图像的位置和输入图像的极坐标位置; 输出几何轮廓计算部分,用于根据观察位置计算指向输出图像的像素位置和输出图像的极坐标位置之间的坐标关系的输出几何轮廓; 以及几何变换部分,用于对输入几何轮廓和输出几何轮廓上的输入图像进行几何变换,由此计算输出图像。
    • 6. 发明授权
    • Color reproducing system
    • 彩色再现系统
    • US06538742B1
    • 2003-03-25
    • US09510787
    • 2000-02-23
    • Kenro Ohsawa
    • Kenro Ohsawa
    • G01N2125
    • H04N9/3182H04N9/3147
    • A color reproduction system includes a color conversion unit for displaying a color image on a multi-primary-color display. The color conversion unit includes a maximum brightness signal calculating unit for calculating signals corresponding to three color reproduction area corners as the corners of a plane that constitute a color reproduction area surface of the display. The three color reproduction area corners surround the vectors of input tristimulus values. The maximum brightness signal calculating unit also calculates a weighting factor obtained when the input tristimulus values are expressed as a linear sum of the tristimulus values of the color reproduction area corner vectors. The color conversion unit further includes a color image signal calculating unit for calculating a color image signal used to display the input tristimulus values, on the basis of the signals corresponding to the color reproduction area corners and the weighting factor. The color reproduction system can realize colorimetrically accurate reproduction, provide continuity between XYZ data and signal values, and use the color reproduction area to the maximum extent.
    • 色彩再现系统包括用于在多原色显示器上显示彩色图像的颜色转换单元。 颜色转换单元包括最大亮度信号计算单元,用于计算对应于三个颜色再现区域角的信号作为构成显示器的颜色再现区域表面的平面的角。 三个颜色再现区域角围绕输入三刺激值的向量。 最大亮度信号计算单元还计算当输入三刺激值被表示为色彩再现区域角向量的三刺激值的线性和时获得的加权因子。 颜色转换单元还包括彩色图像信号计算单元,用于基于对应于颜色再现区域角和加权因子的信号来计算用于显示输入三色刺激值的彩色图像信号。 色彩再现系统可以实现比色精确再现,提供XYZ数据和信号值之间的连续性,并最大程度地使用色彩再现区域。
    • 8. 发明申请
    • Display system
    • 显示系统
    • US20060238832A1
    • 2006-10-26
    • US11472758
    • 2006-06-21
    • Kenro Ohsawa
    • Kenro Ohsawa
    • G03F3/08
    • H04N5/21G09G5/02G09G2320/0666G09G2360/145H04N9/3194H04N9/646
    • A display system according to an embodiment of the present invention includes: a color image display device for displaying a color image; and an image correction device for producing corrected color image data to be outputted to the color image display device by correcting color image data. In the display system, the image correction device calculates the corrected color image data from the color image data so as to correct optical flare of the color image display device on the basis of relationship(s) between one of a plurality of test color image data outputted to the color image display device and the spatial distribution of display colors of a test color image that has been displayed on the color image display device in accordance with the one of the plurality of test color image data.
    • 根据本发明的实施例的显示系统包括:彩色图像显示装置,用于显示彩色图像; 以及图像校正装置,用于通过校正彩色图像数据来产生要输出到彩色图像显示装置的校正彩色图像数据。 在显示系统中,图像校正装置根据彩色图像数据计算校正后的彩色图像数据,以便根据多个测试彩色图像数据之间的关系来校正彩色图像显示装置的光学耀斑 输出到彩色图像显示装置,并且根据多个测试彩色图像数据之一,显示在彩色图像显示装置上的测试彩色图像的显示颜色的空间分布。