公开(公告)号：US06912017B1

公开(公告)日：2005-06-28

申请号：US09887665

申请日：2000-01-12

申请人： Koji Minami ,  Yoshiteru Suzuki ,  Kohei Teramoto ,  Hiroaki Sugiura ,  Shinsuke Shikama

发明人： Koji Minami ,  Yoshiteru Suzuki ,  Kohei Teramoto ,  Hiroaki Sugiura ,  Shinsuke Shikama

IPC分类号： H04N5/74 ,  G02B5/20 ,  G03B21/00 ,  G09F9/00 ,  G09G3/20 ,  G09G3/34 ,  G09G5/02 ,  H04N9/31 ,  H04N9/12 ,  H04N5/64

CPC分类号： G09G3/3413 ,  G09G3/2077 ,  G09G5/02 ,  G09G2310/0235 ,  G09G2340/0428

摘要： There is disclosed a display device using a color wheel having a color filter Cw, in addition to normal color filters corresponding to the three primary colors. The filter Cw has almost flat spectral transmission characteristics. Brightness information included in a color image signal is quantized with (n+m) bits. Information corresponding to the lower-order n bits is displayed by light transmitted through the filter Cw. Information corresponding to the upper-order n bits is displayed by light transmitted through the normal color filters. Only brightness information to which the human eye is visually sensitive is reproduced by the filter Cw having a lower transmissivity. This can eliminate a lack of the number of gray levels due to a constraint on the minimum switching speed of a light valve. Furthermore, the brightness little deteriorates.

摘要翻译： 除了与三原色相对应的普通滤色器之外，还公开了使用具有滤色器Cw的色轮的显示装置。 滤波器Cw具有几乎平坦的频谱传输特性。 包含在彩色图像信号中的亮度信息用（n + m）位量化。 通过滤波器Cw传输的光显示与低阶n位对应的信息。 与通过普通滤色器透射的光显示与上位n位对应的信息。 仅通过具有较低透射率的滤光器Cw再现人眼视觉敏感的亮度信息。 这可以消除由于对光阀的最小切换速度的限制而导致的灰度级数的缺乏。 此外，亮度稍微恶化。

公开(公告)号：US06674489B1

公开(公告)日：2004-01-06

申请号：US09369310

申请日：1999-08-06

申请人： Shuichi Kagawa ,  Hiroaki Sugiura ,  Kohei Teramoto ,  Shinsuke Shikama ,  Yoshiteru Suzuki

发明人： Shuichi Kagawa ,  Hiroaki Sugiura ,  Kohei Teramoto ,  Shinsuke Shikama ,  Yoshiteru Suzuki

IPC分类号： H04N912

CPC分类号： H04N9/3158 ,  G02B5/20 ,  G02B26/008 ,  H04N9/3114

摘要： In an image display which reproduces a color image by using lights color-separated into four or more colors through color filters, the objects of the invention are to effectively utilize the energy of light from a light source and to reduce the effect that a slight shift of the spectral transmittance characteristics of the color filters exerts on the spectral distributions of the lights after color separated. In an image display having a light source and four or more kinds of color filters and for color-separating light emitted from the light source into four or more colors through the four or more kinds of color filters and reproducing a color image by using the color-separated lights, the spectral transmittance characteristics of the color filters are set so that the cutoff wavelengths of the four or more kinds of color filters exist in a wavelength region in which the spectral distributions obtained by multiplying the spectral emissivity characteristic of the light emitted from the light source by the color matching functions are smaller than the values obtained by multiplying the average values of the spectral distributions in the wavelength region from 380 to 780 nm by an integer.

摘要翻译： 在通过使用通过滤色器分色为四种或更多种颜色的光再现彩色图像的图像显示器中，本发明的目的是有效地利用来自光源的光的能量，并且减少轻微偏移的影响 滤色器的光谱透射率特性对颜色分离后的光的光谱分布施加。 在具有光源和四种或更多种滤色器的图像显示器中，并且通过四种或更多种滤色器将从光源发射的光分色成四种或更多种颜色，并通过使用颜色再现彩色图像 分离的光，滤色器的光谱透射率特性被设定为使得四种或更多种滤色器的截止波长存在于通过将从...发射的光的光谱发射率特性相乘得到的光谱分布 通过颜色匹配功能的光源比通过将380至780nm的波长区域中的光谱分布的平均值乘以整数而获得的值小。

公开(公告)号：US06950111B2

公开(公告)日：2005-09-27

申请号：US10203315

申请日：2000-12-11

申请人： Shuichi Kagawa ,  Hiroaki Sugiura ,  Mariko Takahashi ,  Narihiro Matoba ,  Kohei Teramoto

发明人： Shuichi Kagawa ,  Hiroaki Sugiura ,  Mariko Takahashi ,  Narihiro Matoba ,  Kohei Teramoto

IPC分类号： G09G3/22 ,  G09G5/02

CPC分类号： G09G5/02 ,  G09G3/22 ,  G09G2310/0275

摘要： The invention relates to an image display device displaying color image and has its object to display image having a large contrast and excellent visibility to the viewer in an image display device particularly used under environment where external light exists.To achieve the above object, black-approximated data generating means 4 generates black-approximated data R3, G3, and B3 that are data related to chromaticity in displaying black on image display means 3. Black correction means 2A subtracts subtraction data R4, G4, and B4 that have the same value as the black-approximated data R3, G3, and B3, from after-input-processing image data R1, G1, and B1, thereby to calculate after-black-correction image data R2, G2, and B2. The image display means 3 emits in response to the values of the after-black-correction image data R2, G2, and B2, thereby to perform image display processing on a predetermined screen.

摘要翻译： 本发明涉及一种显示彩色图像的图像显示装置，其目的是在外部光存在的环境下特别使用的图像显示装置中显示具有大的对比度和对观众的良好可视性的图像。 为了实现上述目的，黑色近似数据产生装置4产生黑色近似数据R3，G3和B3，它们是与在图像显示装置3上显示黑色的色度有关的数据。黑色校正装置2A减去减法数据R4，G4， 和B4，它们具有与黑色近似数据R3，G3和B3相同的值，从后处理图像数据R1，G1和B1，从而计算黑后校正图像数据R2，G2和 B2。 图像显示装置3响应于黑后校正图像数据R2，G2和B2的值而发射，从而在预定屏幕上执行图像显示处理。

公开(公告)号：US08648859B2

公开(公告)日：2014-02-11

申请号：US12747837

申请日：2009-12-16

申请人： Yoshitaka Toyoda ,  Shotaro Moriya ,  Noritaka Okuda ,  Satoshi Yamanaka ,  Koji Minami ,  Hiroaki Sugiura

发明人： Yoshitaka Toyoda ,  Shotaro Moriya ,  Noritaka Okuda ,  Satoshi Yamanaka ,  Koji Minami ,  Hiroaki Sugiura

IPC分类号： G06T17/00

CPC分类号： H04N5/208 ,  G06T1/00 ,  G06T3/40 ,  G06T5/001 ,  G06T5/50 ,  G06T2207/20016 ,  H04N1/3935 ,  H04N7/0122

摘要： An intermediate image generating means (1) generates a horizontal intermediate image (D1h) and a vertical intermediate image (D1v) by extracting components of an input image (DIN) in a particular frequency band; an intermediate image processing means (2) generates a horizontal image (D2Bh) and a vertical image (D2Bv) by performing non-linear processing (2A) and high-frequency component generation (2B); an intermediate image (D2) is obtained by combining these horizontal and vertical images by performing weighted addition for each pixel and is added (3) to the input image (DIN) to obtain an enhanced output image (DOUT). Even if the input image includes a fold-over component on the high-frequency side or does not include an adequate high-frequency component, adequate image enhancement processing can be carried out.

摘要翻译： 中间图像生成装置（1）通过提取特定频带中的输入图像（DIN）的分量来生成水平中间图像（D1h）和垂直中间图像（D1v） 中间图像处理装置（2）通过执行非线性处理（2A）和高频分量生成（2B）来生成水平图像（D2Bh）和垂直图像（D2Bv）; 通过对每个像素执行加权相加来组合这些水平和垂直图像来获得中间图像（D2），并将其添加到输入图像（DIN）以获得增强输出图像（DOUT）。 即使输入图像包括在高频侧的折叠分量或不包括适当的高频分量，也可以进行适当的图像增强处理。

公开(公告)号：US08249379B2

公开(公告)日：2012-08-21

申请号：US12810448

申请日：2009-11-25

申请人： Shotaro Moriya ,  Noritaka Okuda ,  Satoshi Yamanaka ,  Koji Minami ,  Yoshitaka Toyoda ,  Hiroaki Sugiura

发明人： Shotaro Moriya ,  Noritaka Okuda ,  Satoshi Yamanaka ,  Koji Minami ,  Yoshitaka Toyoda ,  Hiroaki Sugiura

IPC分类号： G06K9/44

CPC分类号： H04N5/208 ,  G06T5/003 ,  G06T5/20 ,  G06T2207/20192 ,  H04N9/68

摘要： A first intermediate image generating means (1) generates an intermediate image (D1) by extracting a component of an input image DIN in a particular frequency band; a second intermediate image generating means (2) generates an intermediate image D2 having a frequency component higher than the intermediate image (D1); a first intermediate image processing means (3M) generates an intermediate image (D3M) by amplifying the pixel values in the intermediate image (D1); a second intermediate image processing means (3H) generates an intermediate image (D3H) by amplifying the pixel values in the intermediate image (D2); and an adding means (4) adds the input image (DIN) and the intermediate image (D3M) and the intermediate image (D3H) together to obtain an output image (DOUT). A first amplification factor (D3MA) and a second amplification factor (D3HA) are determined according to pixel values in the input image (DIN). Even if the input image includes a fold-over component on the high-frequency side or does not include an adequate high-frequency component, an enhanced image can be provided without causing overshoot.

摘要翻译： 第一中间图像生成装置（1）通过提取特定频带中的输入图像DIN的分量来生成中间图像（D1） 第二中间图像产生装置（2）产生具有高于中间图像（D1）的频率分量的中间图像D2; 第一中间图像处理装置（3M）通过放大中间图像（D1）中的像素值来生成中间图像（D3M）; 第二中间图像处理装置（3H）通过放大中间图像（D2）中的像素值来产生中间图像（D3H）; 并且加法装置（4）将输入图像（DIN）和中间图像（D3M）和中间图像（D3H）相加在一起以获得输出图像（DOUT）。 根据输入图像（DIN）中的像素值确定第一放大因子（D3MA）和第二放大因子（D3HA）。 即使输入图像包括在高频侧的折叠分量或不包括适当的高频分量，也可以提供增强的图像而不引起过冲。

公开(公告)号：US20100310166A1

公开(公告)日：2010-12-09

申请号：US12810448

申请日：2009-11-25

申请人： Shotaro Moriya ,  Noritaka Okuda ,  Satoshi Yamanaka ,  Koji Minami ,  Yoshitaka Toyoda ,  Hiroaki Sugiura

发明人： Shotaro Moriya ,  Noritaka Okuda ,  Satoshi Yamanaka ,  Koji Minami ,  Yoshitaka Toyoda ,  Hiroaki Sugiura

IPC分类号： G06K9/40 ,  G06K9/00

CPC分类号： H04N5/208 ,  G06T5/003 ,  G06T5/20 ,  G06T2207/20192 ,  H04N9/68

摘要： A first intermediate image generating means (1) generates an intermediate image (D1) by extracting a component of an input image DIN in a particular frequency band; a second intermediate image generating means (2) generates an intermediate image D2 having a frequency component higher than the intermediate image (D1); a first intermediate image processing means (3M) generates an intermediate image (D3M) by amplifying the pixel values in the intermediate image (D1); a second intermediate image processing means (3H) generates an intermediate image (D3H) by amplifying the pixel values in the intermediate image (D2); and an adding means (4) adds the input image (DIN) and the intermediate image (D3M) and the intermediate image (D3H) together to obtain an output image (DOUT). A first amplification factor (D3MA) and a second amplification factor (D3HA) are determined according to pixel values in the input image (DIN). Even if the input image includes a fold-over component on the high-frequency side or does not include an adequate high-frequency component, an enhanced image can be provided without causing overshoot.

摘要翻译： 第一中间图像生成装置（1）通过提取特定频带中的输入图像DIN的分量来生成中间图像（D1） 第二中间图像产生装置（2）产生具有高于中间图像（D1）的频率分量的中间图像D2; 第一中间图像处理装置（3M）通过放大中间图像（D1）中的像素值来生成中间图像（D3M）; 第二中间图像处理装置（3H）通过放大中间图像（D2）中的像素值来产生中间图像（D3H）; 并且加法装置（4）将输入图像（DIN）和中间图像（D3M）和中间图像（D3H）相加在一起以获得输出图像（DOUT）。 根据输入图像（DIN）中的像素值确定第一放大因子（D3MA）和第二放大因子（D3HA）。 即使输入图像包括在高频侧的折叠分量或不包括适当的高频分量，也可以提供增强的图像而不引起过冲。

公开(公告)号：US20110050701A1

公开(公告)日：2011-03-03

申请号：US12747837

申请日：2009-12-16

申请人： Yoshitaka Toyoda ,  Shotaro Moriya ,  Noritaka Okuda ,  Satoshi Yamanaka ,  Koji Minami ,  Hiroaki Sugiura

发明人： Yoshitaka Toyoda ,  Shotaro Moriya ,  Noritaka Okuda ,  Satoshi Yamanaka ,  Koji Minami ,  Hiroaki Sugiura

IPC分类号： G06T3/40 ,  G06K9/48

CPC分类号： H04N5/208 ,  G06T1/00 ,  G06T3/40 ,  G06T5/001 ,  G06T5/50 ,  G06T2207/20016 ,  H04N1/3935 ,  H04N7/0122

摘要： An intermediate image generating means (1) generates a horizontal intermediate image (D1h) and a vertical intermediate image (D1v) by extracting components of an input image (DIN) in a particular frequency band; an intermediate image processing means (2) generates a horizontal image (D2Bh) and a vertical image (D2Bv) by performing non-linear processing (2A) and high-frequency component generation (2B); an intermediate image (D2) is obtained by combining these horizontal and vertical images by performing weighted addition for each pixel and is added (3) to the input image (DIN) to obtain an enhanced output image (DOUT). Even if the input image includes a fold-over component on the high-frequency side or does not include an adequate high-frequency component, adequate image enhancement processing can be carried out.

摘要翻译： 中间图像生成装置（1）通过提取特定频带中的输入图像（DIN）的分量来生成水平中间图像（D1h）和垂直中间图像（D1v） 中间图像处理装置（2）通过执行非线性处理（2A）和高频分量生成（2B）来生成水平图像（D2Bh）和垂直图像（D2Bv）; 通过对每个像素执行加权相加来组合这些水平和垂直图像来获得中间图像（D2），并将其添加到输入图像（DIN）以获得增强输出图像（DOUT）。 即使输入图像包括在高频侧的折叠分量或不包括适当的高频分量，也可以进行适当的图像增强处理。

公开(公告)号：US08783932B2

公开(公告)日：2014-07-22

申请号：US13641052

申请日：2011-04-14

申请人： Rena Nishitani ,  Tomohiro Sasagawa ,  Eiji Niikura ,  Kuniko Kojima ,  Jun Someya ,  Hiroaki Sugiura ,  Kazuhiko Tsutsumi ,  Akihiro Nagase

发明人： Rena Nishitani ,  Tomohiro Sasagawa ,  Eiji Niikura ,  Kuniko Kojima ,  Jun Someya ,  Hiroaki Sugiura ,  Kazuhiko Tsutsumi ,  Akihiro Nagase

IPC分类号： F21V7/04

CPC分类号： G02F1/133615 ,  G02B6/002 ,  G02B6/003 ,  G02B6/0036 ,  G02B6/0061 ,  G02B6/0068 ,  G02B6/0076 ,  G02F2001/133614 ,  G02F2001/133624

摘要： A planar light source device includes a first light source for emitting a first light ray having a punctate spatial luminance distribution; a second light source for emitting a second light ray; a first spatial luminance distribution conversion portion for changing the first light ray to a linear spatial luminance distribution; a second spatial luminance distribution conversion portion for changing a spatial luminance distribution of the first and second light rays to a planar spatial luminance distribution; wherein the first light ray is a laser light; the second light ray has a divergence angle larger than the divergence angle of the first light ray when the first light ray is emitted from the first light source; and a slow-axis direction of the first light ray entering the second spatial luminance distribution conversion portion is parallel to an outgoing direction of the planar light.

摘要翻译： 平面光源装置包括用于发射具有点状空间亮度分布的第一光线的第一光源; 用于发射第二光线的第二光源; 用于将第一光线改变为线性空间亮度分布的第一空间亮度分布转换部分; 用于将第一和第二光线的空间亮度分布改变为平面空间亮度分布的第二空间亮度分布转换部分; 其中所述第一光线是激光; 当从第一光源发射第一光线时，第二光线具有大于第一光线的发散角的发散角; 并且进入第二空间亮度分布变换部的第一光线的慢轴方向与平面光的出射方向平行。

公开(公告)号：US08139157B2

公开(公告)日：2012-03-20

申请号：US12003176

申请日：2007-12-20

申请人： Jun Someya ,  Kazuo Kyuma ,  Kazuhiko Tsutsumi ,  Hiroaki Sugiura ,  Hironobu Yasui

发明人： Jun Someya ,  Kazuo Kyuma ,  Kazuhiko Tsutsumi ,  Hiroaki Sugiura ,  Hironobu Yasui

IPC分类号： H04N5/14 ,  H04N5/57 ,  H04N9/64 ,  H04N5/21 ,  H04N9/77

CPC分类号： H04N5/20 ,  H04N5/147 ,  H04N9/68

摘要： A video display apparatus generates luminance information for individual frames of a video signal from histograms of the luminance component of the video signal, and classifies the content of the video signal on the basis of this information. Color saturation information is also generated from color saturation histograms, and scene changes are detected. Video correction parameters and display control parameters are derived from the content classification and color saturation information. The video signal is corrected according to the video correction parameters, and displayed according to the display control parameters. Display characteristics suitable for the video content are thereby obtained. The parameters are changed when a scene change is detected, so that the viewer is not disturbed by the change in video display characteristics.

摘要翻译： 视频显示装置从视频信号的亮度分量的直方图生成视频信号的各个帧的亮度信息，并根据该信息对视频信号的内容进行分类。 颜色饱和度信息也是从色彩饱和度直方图生成的，并且检测到场景变化。 视频校正参数和显示控制参数是从内容分类和色彩饱和度信息中得出的。 视频信号根据视频校正参数进行校正，并根据显示控制参数进行显示。 从而获得适合于视频内容的显示特性。 当检测到场景变化时，参数被改变，使得观看者不受视频显示特征的变化的干扰。

公开(公告)号：US08072647B2

公开(公告)日：2011-12-06

申请号：US12222731

申请日：2008-08-14

申请人： Shuichi Kagawa ,  Jun Someya ,  Hiroaki Sugiura

发明人： Shuichi Kagawa ,  Jun Someya ,  Hiroaki Sugiura

IPC分类号： G03F3/08 ,  G06F15/00 ,  H04N1/46 ,  G06K9/00

CPC分类号： H04N1/6058

摘要： A color conversion apparatus receives first image data including first red-green-blue color data in which the possible values of the red, green, and blue components extend beyond the range from 0% to 100%. The first color data are analyzed into first hue region data, the magnitudes of which are adjusted according to the brightness and/or saturation of the first color data to obtain second and third hue region data. The gamut of colors of the first image data is detected, and matrix coefficients are generated according to the detected gamut. The matrix coefficients are used to perform a matrix operation on the second and third hue region data to obtain second color data, thereby converting the first image data to second image data with conversion characteristics appropriate for the gamut of colors of the first image data.

摘要翻译： 颜色转换装置接收包括第一红 - 绿 - 蓝颜色数据的第一图像数据，其中红，绿和蓝分量的可能值延伸超出0％至100％的范围。 将第一颜色数据分析为第一色相区域数据，其数量根据第一颜色数据的亮度和/或饱和度进行调整，以获得第二和第三色调区域数据。 检测第一图像数据的色域，并根据检测到的色域生成矩阵系数。 矩阵系数用于对第二和第三色调区域数据执行矩阵运算以获得第二颜色数据，从而将第一图像数据转换成具有适合于第一图像数据的色域的转换特性的第二图像数据。