公开(公告)号：US07719619B2

公开(公告)日：2010-05-18

申请号：US11367703

申请日：2006-03-06

申请人： Naoya Oka ,  Masahiro Nako ,  Ryo Hasegawa ,  Rikiya Asaoka ,  Daisuke Honda

发明人： Naoya Oka ,  Masahiro Nako ,  Ryo Hasegawa ,  Rikiya Asaoka ,  Daisuke Honda

IPC分类号： H04N5/57

CPC分类号： H04N5/20

摘要： An image processing apparatus is provided that performs more appropriate black stretch processing to display a high quality video. The image processing apparatus includes a luminance characteristics detection unit that analyzes a received video signal to detect a frequency of each of a plurality of luminance areas with a luminance at least equal to or lower than a predetermined luminance, a black stretch processing unit that performs black stretch processing for a luminance signal with a luminance equal to or lower than a predetermined luminance level, and a microcomputer that uses the frequency of each of the plurality of luminance areas, detected by the detection unit, to control the black stretch processing of the black stretch processing unit.

摘要翻译： 提供一种执行更合适的黑色拉伸处理以显示高质量视频的图像处理装置。 该图像处理装置包括亮度特性检测单元，其分析接收到的视频信号，以以至少等于或低于预定亮度的亮度来检测多个亮度区域中的每一个的频率;黑色拉伸处理单元，其执行黑色 具有亮度等于或低于预定亮度水平的亮度信号的拉伸处理和使用由检测单元检测的多个亮度区域中的每一个的频率来控制黑色的黑色拉伸处理的微型计算机 拉伸处理单元。

公开(公告)号：US20060256240A1

公开(公告)日：2006-11-16

申请号：US11367703

申请日：2006-03-06

申请人： Naoya Oka ,  Masahiro Nako ,  Ryo Hasegawa ,  Rikiya Asaoka ,  Daisuke Honda

发明人： Naoya Oka ,  Masahiro Nako ,  Ryo Hasegawa ,  Rikiya Asaoka ,  Daisuke Honda

IPC分类号： H04N5/21

CPC分类号： H04N5/20

摘要： An image processing apparatus is provided that performs more appropriate black stretch processing to display a high quality video. The image processing apparatus includes a luminance characteristics detection unit that analyzes a received video signal to detect a frequency of each of a plurality of luminance areas with a luminance at least equal to or lower than a predetermined luminance, a black stretch processing unit that performs black stretch processing for a luminance signal with a luminance equal to or lower than a predetermined luminance level, and a microcomputer that uses the frequency of each of the plurality of luminance areas, detected by the detection unit, to control the black stretch processing of the black stretch processing unit.

摘要翻译： 提供一种执行更合适的黑色拉伸处理以显示高质量视频的图像处理装置。 该图像处理装置包括亮度特性检测单元，其分析接收到的视频信号，以以至少等于或低于预定亮度的亮度来检测多个亮度区域中的每一个的频率;黑色拉伸处理单元，其执行黑色 具有亮度等于或低于预定亮度水平的亮度信号的拉伸处理和使用由检测单元检测的多个亮度区域中的每一个的频率来控制黑色的黑色拉伸处理的微型计算机 拉伸处理单元。

公开(公告)号：US07916158B2

公开(公告)日：2011-03-29

申请号：US11412989

申请日：2006-04-28

申请人： Hiroshi Aoki ,  Ryo Hasegawa ,  Naoya Oka ,  Rikiya Asaoka ,  Daisuke Honda

发明人： Hiroshi Aoki ,  Ryo Hasegawa ,  Naoya Oka ,  Rikiya Asaoka ,  Daisuke Honda

IPC分类号： G09G5/10 ,  G06K9/00 ,  H04N5/14

CPC分类号： H04N1/6027 ,  G06T5/009 ,  G06T5/40

摘要： Disclosed is an image display technique for displaying a high-quality image by an image signal of appropriate color saturation. To this end, in the invention, color histogram information is detected from a color difference signal and average brightness information or brightness histogram information from a brightness signal. Based on the detected color histogram information and average brightness information or brightness histogram information, the demodulation axis of a color difference signal is adjusted, thereby controlling the color saturation (chroma) of an image. This enables display of an image having color intensity suited to the brightness and chroma of an image signal.

摘要翻译： 公开了一种用于通过适当色彩饱和度的图像信号显示高质量图像的图像显示技术。 为此，在本发明中，从色差信号和来自亮度信号的平均亮度信息或亮度直方图信息中检测颜色直方图信息。 基于检测到的颜色直方图信息和平均亮度信息或亮度直方图信息，调整色差信号的解调轴，从而控制图像的色彩饱和度（色度）。 这使得能够显示具有适合于图像信号的亮度和色度的颜色强度的图像。

公开(公告)号：US20060245017A1

公开(公告)日：2006-11-02

申请号：US11412989

申请日：2006-04-28

申请人： Hiroshi Aoki ,  Ryo Hasegawa ,  Naoya Oka ,  Rikiya Asaoka ,  Daisuke Honda

发明人： Hiroshi Aoki ,  Ryo Hasegawa ,  Naoya Oka ,  Rikiya Asaoka ,  Daisuke Honda

IPC分类号： G03F3/08

CPC分类号： H04N1/6027 ,  G06T5/009 ,  G06T5/40

摘要： Disclosed is an image display technique for displaying a high-quality image by an image signal of appropriate color saturation. To this end, in the invention, color histogram information is detected from a color difference signal and average brightness information or brightness histogram information from a brightness signal. Based on the detected color histogram information and average brightness information or brightness histogram information, the demodulation axis of a color difference signal is adjusted, thereby controlling the color saturation (chroma) of an image. This enables display of an image having color intensity suited to the brightness and chroma of an image signal.

摘要翻译： 公开了一种用于通过适当色彩饱和度的图像信号显示高质量图像的图像显示技术。 为此，在本发明中，从色差信号和来自亮度信号的平均亮度信息或亮度直方图信息中检测颜色直方图信息。 基于检测到的颜色直方图信息和平均亮度信息或亮度直方图信息，调整色差信号的解调轴，从而控制图像的色彩饱和度（色度）。 这使得能够显示具有适合于图像信号的亮度和色度的颜色强度的图像。

公开(公告)号：US20060061842A1

公开(公告)日：2006-03-23

申请号：US11063752

申请日：2005-02-24

申请人： Naoya Oka ,  Ryo Hasegawa ,  Yasutaka Tsuru ,  Hiroshi Aoki ,  Hirofumi Sakamoto

发明人： Naoya Oka ,  Ryo Hasegawa ,  Yasutaka Tsuru ,  Hiroshi Aoki ,  Hirofumi Sakamoto

IPC分类号： G03F3/08

CPC分类号： H04N5/202 ,  H04N9/69

摘要： The present invention provides a technique for performing gamma correction processing when there are a plurality of characteristic areas, each of which is characterized by the high frequency in a luminance histogram to improve the impression of contrast. According to the present invention, a luminance characteristic detector (4) detects the luminance of an input image signal and a microcomputer (5) calculates an APL and a luminance histogram of an input image signal. A gamma correction circuit (6) performs the gamma correction processing in response to the luminosity of the input image signal by use of the result of the calculation carried out by the microcomputer (5). Then, if there are a plurality of characteristic areas, each of which is characterized by the high frequency in the luminance histogram, a characteristic emphasis circuit (7) performs grayscale extension processing for the plurality of characteristic areas. This makes it possible to perform the most suitable processing in response to the input image signal so that the impression of contrast is improved.

摘要翻译： 本发明提供了一种用于在存在多个特征区域时执行伽马校正处理的技术，每个特征区域的特征在于亮度直方图中的高频以改善对比度的印象。 根据本发明，亮度特性检测器（4）检测输入图像信号的亮度，并且微计算机（5）计算输入图像信号的APL和亮度直方图。 伽马校正电路（6）通过使用由微计算机（5）执行的计算结果，响应于输入图像信号的亮度来进行伽马校正处理。 然后，如果存在多个特征区域，其特征在于亮度直方图中的高频，特征强调电路（7）对多个特征区域进行灰度级扩展处理。 这使得可以响应于输入图像信号执行最合适的处理，从而改善了对比度的印象。

公开(公告)号：US07369183B2

公开(公告)日：2008-05-06

申请号：US11063752

申请日：2005-02-24

申请人： Naoya Oka ,  Ryo Hasegawa ,  Yasutaka Tsuru ,  Hiroshi Aoki ,  Hirofumi Sakamoto

发明人： Naoya Oka ,  Ryo Hasegawa ,  Yasutaka Tsuru ,  Hiroshi Aoki ,  Hirofumi Sakamoto

IPC分类号： H04N5/202 ,  H04N9/69 ,  H04N5/14

CPC分类号： H04N5/202 ,  H04N9/69

摘要： The present invention provides a technique for performing gamma correction processing when there are a plurality of characteristic areas, each of which is characterized by the high frequency in a luminance histogram to improve the impression of contrast. According to the present invention, a luminance characteristic detector (4) detects the luminance of an input image signal and a microcomputer (5) calculates an APL and a luminance histogram of an input image signal. A gamma correction circuit (6) performs the gamma correction processing in response to the luminosity of the input image signal by use of the result of the calculation carried out by the microcomputer (5). Then, if there are a plurality of characteristic areas, each of which is characterized by the high frequency in the luminance histogram, a characteristic emphasis circuit (7) performs grayscale extension processing for the plurality of characteristic areas. This makes it possible to perform the most suitable processing in response to the input image signal so that the impression of contrast is improved.

摘要翻译： 本发明提供了一种用于在存在多个特征区域时执行伽马校正处理的技术，每个特征区域的特征在于亮度直方图中的高频以改善对比度的印象。 根据本发明，亮度特性检测器（4）检测输入图像信号的亮度，并且微计算机（5）计算输入图像信号的APL和亮度直方图。 伽马校正电路（6）通过使用由微计算机（5）执行的计算结果，响应于输入图像信号的亮度来进行伽马校正处理。 然后，如果存在多个特征区域，其特征在于亮度直方图中的高频，特征强调电路（7）对多个特征区域进行灰度级扩展处理。 这使得可以响应于输入图像信号执行最合适的处理，从而改善了对比度的印象。

公开(公告)号：US08390640B2

公开(公告)日：2013-03-05

申请号：US12615394

申请日：2009-11-10

申请人： Hiroshi Aoki ,  Akira Kitazume ,  Daisuke Honda ,  Naoya Oka ,  Yuki Nagano ,  Hiroyuki Kurabayashi ,  Akihiro Shiraishi ,  Toshiaki Ohyama

发明人： Hiroshi Aoki ,  Akira Kitazume ,  Daisuke Honda ,  Naoya Oka ,  Yuki Nagano ,  Hiroyuki Kurabayashi ,  Akihiro Shiraishi ,  Toshiaki Ohyama

IPC分类号： G09G3/30 ,  G09G5/00 ,  G09G5/10 ,  H04N5/44 ,  H04N5/445 ,  H04N5/57 ,  H04N5/14 ,  H04N1/46 ,  H04N1/40 ,  G06K9/40 ,  G06K9/20

CPC分类号： H04N9/73

摘要： A television device structured to automatically adjust the color temperature on the display screen in accordance with the viewing environment includes an external light detection unit or an optical sensor for detecting the illuminance and the tint of the ambient light, and an image quality control unit or a microcomputer for adjusting quality of the video image to be displayed on the display panel. The image quality control unit adjusts the color temperature of the video image to be displayed in accordance with the illuminance value and the tint value detected by the external light detection unit. The optical sensor includes an illuminance sensor for mainly detecting the visible light, and an infrared sensor for mainly detecting the infrared light. The illuminance value and the tint value are obtained based on the output values of those two sensors.

摘要翻译： 构造成根据观看环境自动调节显示屏上的色温的电视装置包括用于检测环境光的照度和色调的外部光检测单元或光学传感器，以及图像质量控制单元 用于调整要显示在显示面板上的视频图像的质量的微型计算机。 图像质量控制单元根据由外部光检测单元检测的照度值和色调值来调整要显示的视频图像的色温。 光学传感器包括用于主要检测可见光的照度传感器和用于主要检测红外光的红外传感器。 基于这两个传感器的输出值获得照度值和色调值。

公开(公告)号：US20100220109A1

公开(公告)日：2010-09-02

申请号：US12615394

申请日：2009-11-10

申请人： Hiroshi AOKI ,  Akira Kitazume ,  Daisuke Honda ,  Naoya Oka ,  Yuki Nagano ,  Hiroyuki Kurabayashi ,  Akihiro Shiraishi ,  Toshiaki Ohyama

发明人： Hiroshi AOKI ,  Akira Kitazume ,  Daisuke Honda ,  Naoya Oka ,  Yuki Nagano ,  Hiroyuki Kurabayashi ,  Akihiro Shiraishi ,  Toshiaki Ohyama

IPC分类号： G09G5/02

CPC分类号： H04N9/73

摘要： A television device structured to automatically adjust the color temperature on the display screen in accordance with the viewing environment includes an external light detection unit or an optical sensor for detecting the illuminance and the tint of the ambient light, and an image quality control unit or a microcomputer for adjusting quality of the video image to be displayed on the display panel. The image quality control unit adjusts the color temperature of the video image to be displayed in accordance with the illuminance value and the tint value detected by the external light detection unit. The optical sensor includes an illuminance sensor for mainly detecting the visible light, and an infrared sensor for mainly detecting the infrared light. The illuminance value and the tint value are obtained based on the output values of those two sensors.

摘要翻译： 构造成根据观看环境自动调节显示屏上的色温的电视装置包括用于检测环境光的照度和色调的外部光检测单元或光学传感器，以及图像质量控制单元 用于调整要显示在显示面板上的视频图像的质量的微型计算机。 图像质量控制单元根据由外部光检测单元检测的照度值和色调值来调整要显示的视频图像的色温。 光学传感器包括用于主要检测可见光的照度传感器和用于主要检测红外光的红外传感器。 基于这两个传感器的输出值获得照度值和色调值。

公开(公告)号：US07825893B2

公开(公告)日：2010-11-02

申请号：US11748097

申请日：2007-05-14

申请人： Naoya Oka ,  Yoshiyuki Nagashima

发明人： Naoya Oka ,  Yoshiyuki Nagashima

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G09G3/36 ,  G09G2320/0633 ,  G09G2360/16

摘要： A liquid crystal display, comprising: a liquid crystal display portion for inputting a video signal to display an image thereon; a backlight provided on a rear side of the liquid crystal display portion, for illuminating the liquid crystal display portion from a rear surface thereof; a backlight driver portion for driving the backlight, also having a light control function for controlling a light intensity of the illuminating lights from that backlight; a feature detector portion for detecting an averaged brightness of the video signal, and also a histogram of brightness or a color, upon basis of said video signal inputted; and a light intensity control portion for controlling the light intensity of the illuminating lights from the backlight, through the light control function of the backlight driver portion, upon basis of the histogram of brightness or color, as well as, the averaged brightness of the video signal detected by the feature detector portion.

摘要翻译： 一种液晶显示器，包括：用于输入视频信号以在其上显示图像的液晶显示部分; 设置在液晶显示部的后侧的背光，用于从其后表面照射液晶显示部; 用于驱动背光的背光驱动器部分，还具有用于控制来自该背光的照明光的光强度的光控制功能; 特征检测器部分，用于根据输入的所述视频信号检测视频信号的平均亮度，以及亮度或颜色的直方图; 以及光强度控制部分，用于通过背光驱动器部分的光控功能，根据亮度或颜色的直方图以及视频的平均亮度来控制来自背光的照明光的光强度 信号由特征检测器部分检测。

公开(公告)号：US20080117160A1

公开(公告)日：2008-05-22

申请号：US11748097

申请日：2007-05-14

申请人： Naoya Oka ,  Yoshiyuki Nagashima

发明人： Naoya Oka ,  Yoshiyuki Nagashima

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G09G3/36 ,  G09G2320/0633 ,  G09G2360/16

摘要： A liquid crystal display, comprising: a liquid crystal display portion for inputting a video signal to display an image thereon; a backlight provided on a rear side of the liquid crystal display portion, for illuminating the liquid crystal display portion from a rear surface thereof; a backlight driver portion for driving the backlight, also having a light control function for controlling a light intensity of the illuminating lights from that backlight; a feature detector portion for detecting an averaged brightness of the video signal, and also a histogram of brightness or a color, upon basis of said video signal inputted; and a light intensity control portion for controlling the light intensity of the illuminating lights from the backlight, through the light control function of the backlight driver portion, upon basis of the histogram of brightness or color, as well as, the averaged brightness of the video signal detected by the feature detector portion.

摘要翻译： 一种液晶显示器，包括：用于输入视频信号以在其上显示图像的液晶显示部分; 设置在液晶显示部的后侧的背光，用于从其后表面照射液晶显示部; 用于驱动背光的背光驱动器部分，还具有用于控制来自该背光的照明光的光强度的光控制功能; 特征检测器部分，用于根据输入的所述视频信号检测视频信号的平均亮度，以及亮度或颜色的直方图; 以及光强度控制部分，用于通过背光驱动器部分的光控功能，根据亮度或颜色的直方图以及视频的平均亮度来控制来自背光的照明光的光强度 信号由特征检测器部分检测。