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。

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：US20100238201A1

公开(公告)日：2010-09-23

申请号：US12563507

申请日：2009-09-21

申请人： Ryosuke Nonaka ,  Masahiro Baba ,  Yuma Sano

发明人： Ryosuke Nonaka ,  Masahiro Baba ,  Yuma Sano

IPC分类号： G09G3/36 ,  G09G5/10

CPC分类号： G09G3/3611 ,  G09G3/3406 ,  G09G2320/0646 ,  G09G2320/0673 ,  G09G2360/16

摘要： An image display apparatus for displaying images based on signals of an input image is provided. A backlight emits light. A liquid crystal panel modulates light emitted from the backlight. A emission intensity calculating unit calculates an emission intensity of the backlight such that a center value of a lightness range displayable on the panel defined depending on the emission intensity of the backlight substantially agrees with a center value between maximum and minimum values of lightness of each signal of the input image. A backlight controlling unit controls light emission of the backlight such that the light is emitted with the emission intensity. A signal correcting unit corrects each signal of the input image in accordance with the emission intensity. A liquid crystal controlling unit controls modulation of the liquid crystal panel based upon the corrected signals.

摘要翻译： 提供一种用于基于输入图像的信号显示图像的图像显示装置。 背光发光。 液晶面板调制从背光发出的光。 发光强度计算单元计算背光的发光强度，使得可以根据背光的发光强度限定的面板显示的亮度范围的中心值基本上与每个信号的亮度的最大值和最小值之间的中心值一致 的输入图像。 背光控制单元控制背光的发光，使得以发光强度发光。 信号校正单元根据发射强度校正输入图像的每个信号。 液晶控制单元基于校正信号来控制液晶面板的调制。

公开(公告)号：US20090295783A1

公开(公告)日：2009-12-03

申请号：US12472474

申请日：2009-05-27

申请人： Masahiro Baba ,  Ryosuke Nonaka ,  Goh Itoh

发明人： Masahiro Baba ,  Ryosuke Nonaka ,  Goh Itoh

IPC分类号： G06F3/038 ,  G09G3/36

CPC分类号： G09G3/3406 ,  G09G3/3611 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2320/103 ,  G09G2340/16 ,  G09G2360/16

摘要： A light source emits a light having a luminance. A light source luminance decision unit determines the luminance for a frame of the image based on pixel values of the frame. A conversion unit converts each pixel value of the frame in correspondence with the luminance. A light modulation unit displays the image by modulating a transmittance or a reflectance of the light based on each converted pixel value of the frame. A selection unit selects a timing to change the luminance in a display period of the frame by comparing the luminance for the frame with a luminance for a previous frame. A control unit changes the luminance of the light source to the luminance for the frame at the timing.

摘要翻译： 光源发射具有亮度的光。 光源亮度判定单元基于帧的像素值来确定图像的帧的亮度。 转换单元根据亮度转换帧的每个像素值。 光调制单元通过基于帧的每个转换的像素值调制光的透射率或反射率来显示图像。 选择单元通过将帧的亮度与先前帧的亮度进行比较来选择在帧的显示周期中改变亮度的定时。 控制单元在定时将光源的亮度改变为帧的亮度。

公开(公告)号：US20080050031A1

公开(公告)日：2008-02-28

申请号：US11727147

申请日：2007-03-23

申请人： Goh Itoh ,  Ryosuke Nonaka

发明人： Goh Itoh ,  Ryosuke Nonaka

IPC分类号： G06K9/40

CPC分类号： G06T5/002 ,  G06T5/008 ,  G06T5/20 ,  G06T5/50 ,  G06T2207/10024

摘要： An image processing apparatus generates a brightness component image of a low-sensitivity image by applying a smoothing filter to the low-sensitivity image, generates a brightness component image of a high-sensitivity image by applying the smoothing filter to the high-sensitivity image, generates a contrast component image of the low-sensitivity image by dividing the low-sensitivity image by the brightness component image of the low-sensitivity image, generating a contrast component image of the high-sensitivity image by dividing the high-sensitivity image by the brightness component image of the high-sensitivity image, generates a combined brightness component image by combining the brightness component images of the low-sensitivity image and of the high-sensitivity image, generates a combined contrast component image by combining the contrast component images of the low-sensitivity image and of the high-sensitivity image, and finally generates a contrast-expanded image by multiplying the combined brightness component image and the combined contrast component image.

摘要翻译： 图像处理装置通过对低灵敏度图像应用平滑滤波器来生成低灵敏度图像的亮度分量图像，通过将平滑滤波器应用于高灵敏度图像来生成高灵敏度图像的亮度分量图像， 通过将低灵敏度图像除以低灵敏度图像的亮度分量图像来生成低灵敏度图像的对比度分量图像，通过将高灵敏度图像除以高灵敏度图像来产生高灵敏度图像的对比度分量图像 高灵敏度图像的亮度分量图像，通过组合低感光度图像和高感光度图像的亮度分量图像来生成组合亮度分量图像，通过组合对比分量图像， 低灵敏度图像和高灵敏度图像，最后通过乘法生成对比度扩展图像 组合的亮度分量图像和组合的对比度分量图像。

公开(公告)号：US08749591B2

公开(公告)日：2014-06-10

申请号：US12556610

申请日：2009-09-10

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： G09G3/3611 ,  G09G3/3413 ,  G09G3/3426 ,  G09G2320/0646 ,  G09G2320/0666 ,  G09G2360/16

摘要： An image processing apparatus has a light source luminance calculating unit which calculates the luminances of the light sources of the plurality of colors of a back light based on an input image, a light source maximum value detecting unit which detects a light source maximum value that is the largest value in the light source luminances of the plurality of colors, a light source luminance correcting unit which corrects the light source luminances to obtain corrected light source luminances so as to reduce the difference among the light source luminances of the plurality of colors if the light source maximum value is smaller than a threshold value, a gradation conversion function calculating unit which calculates a gradation conversion function applied to the input image corresponding to each of the plurality of colors, by using the corrected light source luminance, and a control unit which converts the input image by using the gradation conversion function and outputs the input image to a liquid crystal panel and generates the luminance control signal by using the corrected light source luminance and outputs the luminance control signal to the back light.

摘要翻译： 一种图像处理装置，具有基于输入图像计算背光的多种颜色的光源的亮度的光源亮度计算单元，检测作为输入图像的光源最大值的光源最大值检测单元 多个颜色的光源亮度中的最大值;光源亮度校正单元，其校正光源亮度以获得校正的光源亮度，以便减少多种颜色的光源亮度之间的差异，如果 光源最大值小于阈值;灰度转换函数计算单元，其通过使用校正的光源亮度来计算应用于与多个颜色中的每一个相对应的输入图像的灰度转换功能;以及控制单元， 通过使用灰度转换功能转换输入图像并输出输入图像 并且通过使用校正的光源亮度产生亮度控制信号，并将亮度控制信号输出到背光。

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：US08390563B2

公开(公告)日：2013-03-05

申请号：US12563507

申请日：2009-09-21

申请人： Ryosuke Nonaka ,  Masahiro Baba ,  Yuma Sano

发明人： Ryosuke Nonaka ,  Masahiro Baba ,  Yuma Sano

IPC分类号： G09G3/36 ,  G09G5/10

CPC分类号： G09G3/3611 ,  G09G3/3406 ,  G09G2320/0646 ,  G09G2320/0673 ,  G09G2360/16

摘要： An image display apparatus for displaying images based on signals of an input image is provided. A backlight emits light. A liquid crystal panel modulates light emitted from the backlight. A emission intensity calculating unit calculates an emission intensity of the backlight such that a center value of a lightness range displayable on the panel defined depending on the emission intensity of the backlight substantially agrees with a center value between maximum and minimum values of lightness of each signal of the input image. A backlight controlling unit controls light emission of the backlight such that the light is emitted with the emission intensity. A signal correcting unit corrects each signal of the input image in accordance with the emission intensity. A liquid crystal controlling unit controls modulation of the liquid crystal panel based upon the corrected signals.

摘要翻译： 提供一种用于基于输入图像的信号显示图像的图像显示装置。 背光发光。 液晶面板调制从背光发出的光。 发光强度计算单元计算背光的发光强度，使得可以根据背光的发光强度限定的面板显示的亮度范围的中心值基本上与每个信号的亮度的最大值和最小值之间的中心值一致 的输入图像。 背光控制单元控制背光的发光，使得以发光强度发光。 信号校正单元根据发射强度校正输入图像的每个信号。 液晶控制单元基于校正信号来控制液晶面板的调制。