公开(公告)号：US20130251288A1

公开(公告)日：2013-09-26

申请号：US13617541

申请日：2012-09-14

申请人： Hisashi KOBIKI ,  Yasutoyo Takeyama ,  Ryosuke Nonaka ,  Masahiro Baba

发明人： Hisashi KOBIKI ,  Yasutoyo Takeyama ,  Ryosuke Nonaka ,  Masahiro Baba

IPC分类号： G06K9/32

CPC分类号： G06T5/003 ,  G06T2207/20016 ,  G06T2207/20192 ,  G06T2207/20224

摘要： According to one embodiment, an image processing apparatus includes a scale down unit, a calculation unit, a scale up unit, and a subtraction unit. The scale down unit generates a scaled down image by scaling down a target image. The scaled down image has a size smaller than the target image. The calculation unit calculates a pixel value of a diffuse reflection component of each pixel in the scaled down image, and generates a first diffuse reflection image having the pixel value and the same size as the scaled down image. The scale up unit generates a second diffuse reflection image by scaling up the first diffuse reflection image. The second diffuse reflection image has the same size as the target image. The subtraction unit generates a specular reflection image by subtracting the second diffuse reflection image from the target image.

摘要翻译： 根据一个实施例，图像处理装置包括缩小单元，计算单元，缩放单元和减法单元。 缩小单位通过缩小目标图像来生成缩小图像。 缩小图像的尺寸小于目标图像。 计算单元计算缩小图像中的每个像素的漫反射分量的像素值，并生成具有与缩小图像相同的像素值和尺寸相同的第一漫反射图像。 放大单元通过放大第一漫反射图像产生第二漫反射图像。 第二漫反射图像具有与目标图像相同的大小。 减法单元通过从目标图像中减去第二漫反射图像来生成镜面反射图像。

公开(公告)号：US08488879B2

公开(公告)日：2013-07-16

申请号：US13410627

申请日：2012-03-02

申请人： Hisashi Kobiki ,  Yasutoyo Takeyama ,  Ryosuke Nonaka ,  Masahiro Baba

发明人： Hisashi Kobiki ,  Yasutoyo Takeyama ,  Ryosuke Nonaka ,  Masahiro Baba

IPC分类号： G06K9/00 ,  G06K9/46 ,  G06K9/34

CPC分类号： G06K9/4661 ,  G06T7/11 ,  G06T2207/10024

摘要： An image processing device includes a hue calculation unit configured to calculate a hue of a pixel included in a target image; an extraction unit configured to extract a first group including a pixel, a hue of which is close to a hue of the target pixel; a chromaticity calculation unit configured to calculate a chromaticity of the pixel included in the first group and that of the target pixel; a diffuse reflection factor calculation unit configured to calculate an estimated diffuse reflection factor by using the chromaticity of the pixel included in the first group and that of the target pixel; and a separation unit configured to separate a diffuse reflection component from a pixel value of the target pixel by using the diffuse reflection factor, the diffuse reflection component representing a component in the pixel value that varies as the diffuse reflection factor varies.

摘要翻译： 图像处理装置包括：色调计算单元，被配置为计算目标图像中包括的像素的色调; 提取单元，被配置为提取包括像素的第一组，所述像素的色调接近所述目标像素的色调; 色度计算单元，被配置为计算包括在第一组中的像素和目标像素的色度的色度; 漫反射因子计算单元，被配置为通过使用包括在第一组中的像素和目标像素的像素的色度来计算估计漫反射因子; 以及分离单元，被配置为通过使用漫反射因子将漫反射分量与目标像素的像素值分离，所述漫反射分量表示像漫反射因子变化的像素值中的分量。

公开(公告)号：US20130071018A1

公开(公告)日：2013-03-21

申请号：US13410627

申请日：2012-03-02

申请人： Hisashi Kobiki ,  Yasutoyo Takeyama ,  Ryosuke Nonaka ,  Masahiro Baba

发明人： Hisashi Kobiki ,  Yasutoyo Takeyama ,  Ryosuke Nonaka ,  Masahiro Baba

IPC分类号： G06K9/46

CPC分类号： G06K9/4661 ,  G06T7/11 ,  G06T2207/10024

摘要： An image processing device includes a hue calculation unit configured to calculate a hue of a pixel included in a target image; an extraction unit configured to extract a first group including a pixel, a hue of which is close to a hue of the target pixel; a chromaticity calculation unit configured to calculate a chromaticity of the pixel included in the first group and that of the target pixel; a diffuse reflection factor calculation unit configured to calculate an estimated diffuse reflection factor by using the chromaticity of the pixel included in the first group and that of the target pixel; and a separation unit configured to separate a diffuse reflection component from a pixel value of the target pixel by using the diffuse reflection factor, the diffuse reflection component representing a component in the pixel value that varies as the diffuse reflection factor varies.

摘要翻译： 图像处理装置包括：色调计算单元，被配置为计算目标图像中包括的像素的色调; 提取单元，被配置为提取包括像素的第一组，所述像素的色调接近所述目标像素的色调; 色度计算单元，被配置为计算包括在第一组中的像素和目标像素的色度的色度; 漫反射因子计算单元，被配置为通过使用包括在第一组中的像素和目标像素的像素的色度来计算估计漫反射因子; 以及分离单元，被配置为通过使用漫反射因子将漫反射分量与目标像素的像素值分离，所述漫反射分量表示像漫反射因子变化的像素值中的分量。

公开(公告)号：US20120026208A1

公开(公告)日：2012-02-02

申请号：US13064085

申请日：2011-03-04

申请人： Hisashi Kobiki ,  Ryosuke Nonaka ,  Masahiro Baba

发明人： Hisashi Kobiki ,  Ryosuke Nonaka ,  Masahiro Baba

IPC分类号： G09G5/10

CPC分类号： G09G3/3406 ,  G09G2320/0271 ,  G09G2320/0646

摘要： According to one embodiment, a set unit sets a display luminance signal indicating a luminance of a display unit. A first calculation unit calculates a first gamma characteristic signal of an image to be displayed, based on the display luminance signal and gray-scale levels of pixels of the image. A second calculation unit calculates a second gamma characteristic signal of each area of the image, based on gray-scale levels of pixels of each area. A conversion unit converts a gray-scale level of each pixel of the image, based on the first gamma characteristic signal and the second gamma characteristic signal of an area including a pixel to be converted in the image. The display unit displays the image in which the gray-scale level of each pixel was converted, based on the display luminance signal.

摘要翻译： 根据一个实施例，设置单元设置指示显示单元的亮度的显示亮度信号。 第一计算单元基于显示亮度信号和图像的像素的灰度级来计算要显示的图像的第一伽马特征信号。 第二计算单元基于每个区域的像素的灰度级来计算图像的每个区域的第二伽马特征信号。 转换单元基于包括要在图像中转换的像素的区域的第一伽马特征信号和第二伽马特征信号来转换图像的每个像素的灰度级。 显示单元基于显示亮度信号显示其中每个像素的灰度级别被转换的图像。

公开(公告)号：US08952881B2

公开(公告)日：2015-02-10

申请号：US13071586

申请日：2011-03-25

申请人： Ryosuke Nonaka ,  Masahiro Baba ,  Yuma Sano

发明人： Ryosuke Nonaka ,  Masahiro Baba ,  Yuma Sano

IPC分类号： G09G3/36 ,  G09G3/10 ,  G09G3/34

CPC分类号： G09G3/342 ,  G09G3/3413 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2330/021 ,  G09G2360/16

摘要： According to one embodiment, an image display apparatus includes a liquid crystal panel, a backlight, a luminance distribution calculation unit, an error calculation unit, and an emission intensity update unit. The backlight includes a plurality of light sources which emit light. The luminance distribution calculation unit calculates a predicted value for an intensity distribution of light entering the liquid crystal panel if each of the light sources is lit with an emission intensity. The error calculation unit obtains a brightness of a display image which is realized if the each of the light sources is lit with the emission intensity, and the error calculation unit calculates an error between the obtained brightness and an ideal brightness of the display image corresponding to the input video signal. The emission intensity update unit updates the emission intensity of the each of the light sources to reduce the error.

摘要翻译： 根据一个实施例，图像显示装置包括液晶面板，背光源，亮度分布计算单元，误差计算单元和发光强度更新单元。 背光源包括多个发光的光源。 如果每个光源以发光强度点亮，则亮度分布计算单元计算进入液晶面板的光的强度分布的预测值。 误差计算单元获得如果每个光源以发光强度点亮所实现的显示图像的亮度，并且误差计算单元计算所获得的亮度和对应于所得到的显示图像的理想亮度之间的误差 输入视频信号。 发光强度更新单元更新每个光源的发射强度以减少误差。

公开(公告)号：US08791967B2

公开(公告)日：2014-07-29

申请号：US13070986

申请日：2011-03-24

申请人： Masahiro Baba ,  Ryosuke Nonaka ,  Yuma Sano

发明人： Masahiro Baba ,  Ryosuke Nonaka ,  Yuma Sano

IPC分类号： G09G5/10

CPC分类号： G09G3/3413 ,  G09G3/3426 ,  G09G2320/0285 ,  G09G2320/064 ,  G09G2320/0646 ,  G09G2320/0666

摘要： According to one embodiment, a display apparatus includes a light modulating unit, a light source unit, a luminance setting unit, a luminance distribution calculating unit, a signal level converting unit, and a control unit. The light source unit includes a basic light source and an extended light source illuminating each of divisional areas into which the display area tentatively divided. The basic light source emits white light with first emission peak wavelengths. The extended light source emits light with a second emission peak wavelength being different from the first emission peak wavelengths and being within a range between shortest and longest wavelengths of the first emission peak wavelengths. The control unit is configured to generate a control signal controlling the basic light source and the extended light source so as to provide a period in which the basic light source and the extended light source simultaneously emit light.

摘要翻译： 根据一个实施例，显示装置包括光调制单元，光源单元，亮度设置单元，亮度分布计算单元，信号电平转换单元和控制单元。 光源单元包括基本光源和照亮显示区域暂时划分的各个区域的延伸光源。 基本光源发出具有第一发射峰波长的白光。 扩展光源发射具有与第一发射峰值波长不同的第二发射峰值波长的光，并且在第一发射峰值波长的最短和最长波长之间的范围内。 控制单元被配置为产生控制基本光源和扩展光源的控制信号，以便提供基本光源和扩展光源同时发光的时段。

公开(公告)号：US08525823B2

公开(公告)日：2013-09-03

申请号：US13235959

申请日：2011-09-19

申请人： Yuma Sano ,  Ryosuke Nonaka ,  Masahiro Baba

发明人： Yuma Sano ,  Ryosuke Nonaka ,  Masahiro Baba

IPC分类号： G06F3/038 ,  G09G5/10

CPC分类号： G09G3/3413 ,  G09G3/3426 ,  G09G3/3611 ,  G09G5/04 ,  G09G2320/0666 ,  G09G2360/16

摘要： According to one embodiment, an image display device has a liquid crystal panel, a backlight, an intensity setting unit, a presumption unit, a signal correction unit, an error calculation unit and a control unit. The intensity setting unit sets intensities of the light sources, respectively. The presumption unit presumes color information based on intensity information representing the intensities. The signal correction unit corrects an input video signal according to the color information, and obtains a corrected video signal. The error calculation unit presumes a display image from the corrected video signal and the input video signal, and calculates display errors between the presumed display image and an input image corresponding to the input video signal. The control unit controls sets the intensities of the light sources as the emission intensities of the backlight so that the display errors obtained from the error calculation unit can be minimum.

摘要翻译： 根据一个实施例，图像显示装置具有液晶面板，背光源，亮度设定单元，推测单元，信号校正单元，误差计算单元和控制单元。 强度设定单元分别设定光源的强度。 推测单元基于表示强度的强度信息来假定颜色信息。 信号校正单元根据颜色信息校正输入视频信号，并获得校正的视频信号。 误差计算单元假定来自校正视频信号和输入视频信号的显示图像，并且计算推定的显示图像与对应于输入视频信号的输入图像之间的显示误差。 控制单元控制将光源的强度设置为背光的发光强度，使得从误差计算单元获得的显示误差可以是最小的。

公开(公告)号：US20120182333A1

公开(公告)日：2012-07-19

申请号：US13418482

申请日：2012-03-13

申请人： Masahiro Baba ,  Ryosuke Nonaka

发明人： Masahiro Baba ,  Ryosuke Nonaka

IPC分类号： G09G3/36 ,  G09G5/10

CPC分类号： G09G3/3406 ,  G09G3/3611 ,  G09G2320/0646 ,  G09G2320/10 ,  G09G2330/045 ,  G09G2360/16

摘要： There is provided an image displaying apparatus in which a light-source luminance calculator calculates light-source luminance of the light emitted by a backlight based on pixel values of an input image, a cumulative light-emission amount calculator calculates a cumulative light-emission amount by summing up light-source luminance for an arbitrary period for which an image is displayed at a time before the input image is displayed, the cumulative light-emission amount is compared with a reference light-emission amount determined in advance, and if the difference between the cumulative light-emission amount and the reference light-emission amount is smaller than a reference, a light-source luminance correcting unit corrects the light-source luminance to a smaller value to obtain corrected light-source luminance corrected.

摘要翻译： 提供一种图像显示装置，其中光源亮度计算器基于输入图像的像素值来计算由背光源发射的光的光源亮度，累积发光量计算器计算累积发光量 通过对在显示输入图像之前的时间显示图像的任意时段的光源亮度求和，将累积发光量与预先确定的基准发光量进行比较， 在累积发光量与参考发光量之间小于参考值的情况下，光源亮度校正单元将光源亮度校正为较小的值，以校正校正的光源亮度。

公开(公告)号：US08760384B2

公开(公告)日：2014-06-24

申请号：US12812667

申请日：2009-02-27

申请人： Ryosuke Nonaka ,  Masahiro Baba ,  Goh Itoh

发明人： Ryosuke Nonaka ,  Masahiro Baba ,  Goh Itoh

IPC分类号： G09G3/36

CPC分类号： G09G3/3413 ,  G09G3/3648 ,  G09G5/06 ,  G09G2320/0276 ,  G09G2320/0646 ,  G09G2320/0673

摘要： An image display apparatus includes: a backlight configured to emit light; a liquid crystal panel configured to modulate light emitted from the backlight to make an image display; a backlight luminance calculating unit configured to calculate a light-emission luminance of the backlight such that a center value of a luminance range displayable on the liquid crystal panel defined depending on the light-emission luminance of the backlight substantially agrees with a center value of luminances of pixels forming an input image; a backlight controlling unit configured to control light emission of the backlight so that the light from the backlight is emitted with the calculated light-emission luminance; a luminance correcting unit configured to correct the luminance of each pixel in the input image in accordance with the calculated light-emission luminance; and a liquid crystal controlling unit configured to control modulation of the liquid crystal panel based upon the corrected input image.

摘要翻译： 图像显示装置包括：配置为发光的背光; 液晶面板，被配置为调制从所述背光发出的光以进行图像显示; 背光源亮度计算单元，被配置为计算背光源的发光亮度，使得可根据背光的发光亮度限定的液晶面板上可显示的亮度范围的中心值基本上与亮度的中心值一致 的像素形成输入图像; 背光控制单元，被配置为控制所述背光的发光，使得来自所述背光的光以所计算的发光亮度发射; 亮度校正单元，被配置为根据所计算的发光亮度校正输入图像中的每个像素的亮度; 以及液晶控制单元，被配置为基于校正的输入图像来控制液晶面板的调制。

公开(公告)号：US08305339B2

公开(公告)日：2012-11-06

申请号：US13418482

申请日：2012-03-13

申请人： Masahiro Baba ,  Ryosuke Nonaka

发明人： Masahiro Baba ,  Ryosuke Nonaka

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G09G3/3611 ,  G09G2320/0646 ,  G09G2320/10 ,  G09G2330/045 ,  G09G2360/16

摘要： There is provided an image displaying apparatus in which a light-source luminance calculator calculates light-source luminance of the light emitted by a backlight based on pixel values of an input image, a cumulative light-emission amount calculator calculates a cumulative light-emission amount by summing up light-source luminance for an arbitrary period for which an image is displayed at a time before the input image is displayed, the cumulative light-emission amount is compared with a reference light-emission amount determined in advance, and if the difference between the cumulative light-emission amount and the reference light-emission amount is smaller than a reference, a light-source luminance correcting unit corrects the light-source luminance to a smaller value to obtain corrected light-source luminance corrected.

摘要翻译： 提供一种图像显示装置，其中光源亮度计算器基于输入图像的像素值来计算由背光源发射的光的光源亮度，累积发光量计算器计算累积发光量 通过对在显示输入图像之前的时间显示图像的任意时段的光源亮度求和，将累积发光量与预先确定的基准发光量进行比较， 在累积发光量与参考发光量之间小于参考值的情况下，光源亮度校正单元将光源亮度校正为较小的值，以校正校正的光源亮度。