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51. 发明专利

JP2014045486A Method of estimating s/n ratio of input channel, and test and measurement device 有权
标题翻译：估计输入通道的S / N比，测试和测量装置的方法
公开(公告)号：JP2014045486A
公开(公告)日：2014-03-13
申请号：JP2013174836
申请日：2013-08-26
申请人： Tektronix Inc , テクトロニクス・インコーポレイテッドTektronix,Inc.
发明人： BAKER DANIEL G , LAKSHMANAN GOPISHANKAR , GEORGE W TUSING
IPC分类号： H04L27/38 , H04B17/00 , H04L27/00
CPC分类号： H04B17/336 , H04L27/38 , H04N17/02
摘要： PROBLEM TO BE SOLVED: To estimate an S/N ratio of an input channel carrying a QAM signal.SOLUTION: A Modulation Error Ratio (MER) is calculated for an input QAM signal, but uses only centermost error values of a constellation of the input QAM signal in generating this modified MER. The modified MER accurately represents the S/N ratio of the input channel carrying the QAM signal. In this way, the S/N ratio is accurately determined using only received I and Q components of the modulated QAM input signal itself.
摘要翻译：要解决的问题：估计携带QAM信号的输入信道的S / N比。解码：针对输入QAM信号计算调制误差比（MER），但是仅使用输入的星座的最中心的误差值产生这个改进的MER的QAM信号。修改的MER精确地表示携带QAM信号的输入信道的S / N比。以这种方式，仅使用调制的QAM输入信号本身的接收的I和Q分量来精确地确定S / N比。

52. 发明专利

JP2013207411A Color adjustment device, color adjustment system, and program 有权
标题翻译：颜色调整设备，颜色调整系统和程序
公开(公告)号：JP2013207411A
公开(公告)日：2013-10-07
申请号：JP2012072255
申请日：2012-03-27
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： SAKAI NORIKO , IWABUCHI TOSHIHIRO , HORIKAWA KAZUHIKO
IPC分类号： H04N1/46 , G06T1/00 , H04N1/60
CPC分类号： H04N17/04 , G09G5/06 , G09G2320/0666 , H04N1/603 , H04N9/73 , H04N17/02
摘要： PROBLEM TO BE SOLVED: To provide a color adjustment device, etc. capable of allowing color expression to be closer to that of an image display device being an acquisition object when an image is displayed in an image display device being an adjustment object.SOLUTION: A color adjustment device includes: a color value acquisition unit 131 for acquiring a color value of a monitor being an acquisition object; a characteristic value derivation unit 132 for deriving a characteristic value of the monitor being an acquisition object from the color value; a correction item selection unit 133 for selecting a common correction item for the color adjustment of an image of the monitor being an adjustment object from the characteristic value; a target characteristic value setting unit 134 for setting a target characteristic value to be a common target when performing the color adjustment of an image in the monitor being an adjustment object concerning the selected correction item; a correction coefficient derivation unit 135 for deriving a common correction coefficient for the correction of the characteristic value to the target characteristic value; and a first color conversion profile derivation unit 136 for generating a common first color conversion profile for the conversion of an input image signal in order to perform the color adjustment of an image of the monitor being an adjustment object.
摘要翻译：要解决的问题：当在作为调整对象的图像显示装置中显示图像时，提供能够使颜色表达更接近作为采集对象的图像显示装置的颜色调整装置等。解决方案：颜色调整装置包括：颜色值获取单元131，用于获取作为获取对象的监视器的颜色值; 特征值导出单元132，用于从颜色值导出作为获取对象的监视器的特征值; 校正项目选择单元133，用于从该特征值中选择用于调整作为调整对象的监视器的图像的颜色调整的公共校正项; 目标特性值设定单元134，用于在执行监视器中的图像的颜色调整时将目标特征值设置为公共目标，作为关于所选择的校正项目的调整对象; 校正系数导出单元135，用于将用于将特征值的校正的公共校正系数导出到目标特性值; 以及第一颜色转换曲线导出单元136，用于产生用于输入图像信号的转换的公共第一颜色转换曲线，以便执行作为调整对象的监视器的图像的颜色调整。

53. 发明专利

JP5282833B1 Color adjusting apparatus, color adjustment system and program 有权
公开(公告)号：JP5282833B1
公开(公告)日：2013-09-04
申请号：JP2012072255
申请日：2012-03-27
申请人：富士ゼロックス株式会社
发明人：典子酒井 , 稔弘岩渕 , 和彦堀川
IPC分类号： H04N1/46 , G06T1/00 , H04N1/60
CPC分类号： H04N17/04 , G09G5/06 , G09G2320/0666 , H04N1/603 , H04N9/73 , H04N17/02
摘要： A color adjustment device includes a color-value obtaining unit, a color-property-value deriving unit, a correction-item selection unit, a target-property-value setting unit, a correction-coefficient deriving unit, and a color-adjustment-profile generating unit. The color-value obtaining unit obtains color values when an image is displayed on image display devices. The color-property-value deriving unit derives values of color properties from the color values. The correction-item selection unit selects a color property as a correction item on the basis of the derived values. The target-property-value setting unit sets a target property value for the correction item. The correction-coefficient deriving unit derives a correction coefficient to be used to correct the values of the color property to the target property value. The color-adjustment-profile generating unit generates a color-adjustment profile on the basis of the correction coefficient.

54. 发明专利

JP2013146052A Image quality evaluation device, control method thereof, and program 有权
标题翻译：图像质量评估设备，其控制方法及程序
公开(公告)号：JP2013146052A
公开(公告)日：2013-07-25
申请号：JP2012265668
申请日：2012-12-04
申请人： Canon Inc , キヤノン株式会社
发明人： IKEDA SATOSHI
IPC分类号： H04N17/00 , H04N5/21 , H04N17/02
CPC分类号： H04N13/02 , G06T5/002 , G06T7/0002 , G06T2207/10016 , G06T2207/20182 , G06T2207/30168 , H04N17/02
摘要： PROBLEM TO BE SOLVED: To provide an image quality evaluation device, a control method thereof, and a program capable of efficiently calculating an evaluation value having high correlation with a subjective evaluation.SOLUTION: An autocorrelation coefficient to three dimensions defined in a horizontal direction, a vertical direction, and a time direction of moving image data to be evaluated is acquired. Frequency analysis for the autocorrelation coefficient to the three dimensions is performed, and a resulted frequency analysis is multiplied by visual response function indicating visual characteristics of spatial frequency or time frequency so that a plurality of noise amount are calculated. A product of the calculated plurality of noise amounts are calculated as a moving image noise evaluation value of the moving image data to be evaluated.
摘要翻译：要解决的问题：提供一种图像质量评估装置，其控制方法和能够有效地计算与主观评价高度相关的评价值的程序。解决方案：在水平方向上限定的三维的自相关系数，获取要评估的运动图像数据的垂直方向和时间方向。执行自相关系数对三维的频率分析，并且将所得到的频率分析乘以指示空间频率或时间频率的视觉特性的视觉响应函数，从而计算多个噪声量。将计算出的多个噪声量的乘积计算为要评估的运动图像数据的运动图像噪声评估值。

55. 发明专利

JP5085618B2 Image quality adjustment device, image quality adjustment method, and the image quality adjustment program 有权
公开(公告)号：JP5085618B2
公开(公告)日：2012-11-28
申请号：JP2009190665
申请日：2009-08-20
申请人：ミツミ電機株式会社 , 有限会社Atrc
发明人：武志安達
IPC分类号： H04N5/20 , G09G5/00 , G09G5/06 , G09G5/10 , H04N5/57 , H04N9/64
CPC分类号： H04N17/02 , G09G5/00 , G09G2320/06 , G09G2320/0666 , G09G2320/0693 , G09G2330/12 , H04N9/73 , H04N17/04
摘要： An image quality adjusting device 12 includes an imaging unit 21 capturing a screen of a display terminal 11 using a spectroscopic camera and an RGB camera to obtain image information; an analysis unit 22 obtaining color data, profile data, and histogram data from the image information obtained by the imaging unit 21 and analyzing image quality characteristics including still image characteristics and video image characteristic; and an image quality adjusting unit 23 generating a look-up table (LUT), which is used to adjust the image quality of the display terminal 11 by means of predetermined image quality adjustment parameters, based on image quality evaluation data of the display terminal 11 obtained by the analysis unit 22, and updating image quality information preset in the display terminal 11 based on the generated look-up table to adjust the image quality of the display terminal 11.

56. 发明专利

JP5078719B2 Color processing apparatus and method 有权
公开(公告)号：JP5078719B2
公开(公告)日：2012-11-21
申请号：JP2008104649
申请日：2008-04-14
申请人：キヤノン株式会社
发明人：貴洋松浦
IPC分类号： H04N1/46 , G06T1/00 , H04N1/60
CPC分类号： H04N9/67 , H04N1/60 , H04N1/6033 , H04N1/6086 , H04N17/002 , H04N17/02
摘要： A color processing apparatus for evaluating the gradation characteristic of a color conversion table that is used to convert signal values in input color space into signal values in output color space and has a plurality of grid points includes an acquisition unit configured to acquire signal values in the output color space corresponding to four adjacent grid points in the input color space through the color conversion table, a calculation unit configured to calculate a property of a tetrahedron formed by the signal values in the output color space, and an evaluation unit configured to evaluate a gradation characteristic of the color conversion table based on the property of the tetrahedron. The property of the tetrahedron may be the volume of the tetrahedron or the surface area of the tetrahedron.

57. 发明专利

JP2012199908A Image sensor compensation 有权
标题翻译：图像传感器补偿
公开(公告)号：JP2012199908A
公开(公告)日：2012-10-18
申请号：JP2012031033
申请日：2012-02-15
申请人： Canon Inc , キヤノン株式会社
发明人： FRANCISCO IMAI
IPC分类号： H04N9/04
CPC分类号： H04N9/646 , H04N17/002 , H04N17/02
摘要： PROBLEM TO BE SOLVED: To compensate for spatial non-uniformity in color sensitivity of an image sensor by generating a compensation capture mask for a tunable image sensor prior to image capture, and by applying the mask at the time of image capture.SOLUTION: Compensation is performed for an image capture device which includes the image sensor which has a tunable spectral response and which is tunable in accordance with a capture mask. The compensation is for spatial non-uniformity in color sensitivity of the image sensor. A default capture mask is applied to the image sensor, and a sample image is captured using the image sensor tuned by the default capture mask. Color of the sample image is analyzed to identify spatial non-uniformity in color sensitivity of the image sensor. The compensation capture mask is constructed. The compensation capture mask is constructed using calculations based on the identified spatial non-uniformity so as to compensate for spatial non-uniformity in color sensitivity of the image sensor. The compensation capture mask is stored in a memory of the image capture device for application of the compensation capture mask to the image sensor.
摘要翻译：要解决的问题：通过在图像捕获之前产生用于可调图像传感器的补偿捕获掩模，并且在图像捕获时通过应用掩模来补偿图像传感器的颜色灵敏度的空间不均匀性。解决方案：对包括具有可调谐光谱响应并且根据捕获掩模可调谐的图像传感器的图像捕获装置执行补偿。补偿是图像传感器的颜色灵敏度的空间不均匀性。默认捕获掩码应用于图像传感器，并使用默认捕获掩码调整的图像传感器捕获样本图像。分析样本图像的颜色以识别图像传感器的颜色灵敏度的空间不均匀性。补偿捕获掩模被构建。使用基于所识别的空间不均匀性的计算来构建补偿捕获掩模，以补偿图像传感器的颜色灵敏度的空间不均匀性。补偿捕获掩模存储在图像捕获装置的存储器中，以将补偿捕获掩模应用于图像传感器。版权所有（C）2013，JPO＆INPIT

58. 发明专利

JP2011529581A Characterization of the display by filtering 审中-公开
公开(公告)号：JP2011529581A
公开(公告)日：2011-12-08
申请号：JP2011521066
申请日：2008-07-29
申请人：トムソンライセンシングThomson Licensing
发明人：リー，ボンサン
IPC分类号： G09F9/00 , H04N17/04
CPC分类号： H04N17/04 , H04N17/02
摘要： A display and a method of characterizing a display includes a means of enabling the display to be measured by a characterization system having a measurement sensor that measures a difference between display characteristics and target values of a screen. The screen is provided with at least a first filter. The first filter is a color correction filter that decreases the difference between the display characteristics and the target values of the screen.

59. 发明专利

JP4721610B2 Method of calibrating color flat panel display 有权
公开(公告)号：JP4721610B2
公开(公告)日：2011-07-13
申请号：JP2002182915
申请日：2002-06-24
申请人：グローバル・オーエルイーディー・テクノロジー・リミテッド・ライアビリティ・カンパニーGlobal Oled Technology Llc.
发明人：エルコットニーパトリック , ジェイアレッシィポーラ
IPC分类号： G01J3/46 , G09G3/20 , G01M11/00 , G09G3/30 , G09G3/32 , G09G5/00 , G09G5/02 , H01L51/50
CPC分类号： G09G3/2092 , G09G3/2003 , G09G3/3208 , G09G5/02 , G09G2320/029 , G09G2320/0606 , G09G2320/0666 , G09G2320/0693 , H04N17/02 , H04N17/04
摘要： A method of calibrating a flat panel, includes the steps of: providing a flat panel display having an overall and individual channel adjustment for both gain and offset and an adjustment to provide a white point for the display, the white point including color temperature, chromaticity and luminance level; displaying a first target using a low level code value for each channel of the display; sensing the luminance level of the displayed first target; adjusting the gain of the display so that the sensed luminance level matches a first predetermined aim value representing a luminance level at least 3 decades lower than a maximum luminance level; displaying a second target using intermediate code values for each channel of the display device; sensing the luminance level and chromaticities of the displayed second target; adjusting the individual channel offsets so that the luminance level matches a second predetermined aim value representing an intermediate luminance level and the chromaticities match a first set of predetermined chromaticities that represent a desired white point; displaying a third target using maximum code values for each channel of the display; sensing the luminance level and chromaticities of the displayed third target; adjusting the individual channel gains so that the luminance level matches a third predetermined aim value the maximum luminance level and the chromaticities match the first set of predetermined chromaticities; and repeating until no further adjustment is required.

60. 发明专利

JP4681033B2 Image correction data generation system, image data generation method and image correction circuit 有权
公开(公告)号：JP4681033B2
公开(公告)日：2011-05-11
申请号：JP2008227139
申请日：2008-09-04
申请人：株式会社イクス
发明人：坂本　　隆 , 明男太田 , 哲彦新保 , 浩村瀬 , 重治石川
IPC分类号： H04N5/66 , G02F1/133 , G09G3/20 , G09G3/36 , H04N1/401
CPC分类号： G09G3/20 , G09G3/006 , G09G3/36 , G09G2320/0233 , G09G2320/0242 , G09G2320/0285 , G09G2320/0693 , G09G2360/147 , H04N17/02 , H04N17/04
摘要： An image correction data generation system includes a signal generation unit, an imaging unit, and a control unit. The signal generation unit supplies a signal for outputting an image, to a display panel. The imaging unit captures an output image displayed on the display panel. The control unit is connected to the signal generation unit and the imaging unit. The control unit has an instruction unit, an image acquisition unit, a bandpass filter unit, and a corrected data generation unit. The instruction unit outputs to the signal generation unit, a supply instruction of a signal value common to the entire display panel. The image acquisition unit acquires output image data from the imaging unit. The bandpass filter unit executes a bandpass filtering on the output image data so as to calculate bandpass data. The data generation unit outputs an image correction table corresponding to the bandpass data.

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