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1. 发明申请

WO2018135291A1 VIDEO SIGNAL PROCESSING APPARATUS, VIDEO SIGNAL PROCESSING METHOD, AND PROGRAM FOR DYNAMIC RANGE COMPRESSION 审中-公开
公开(公告)号：WO2018135291A1
公开(公告)日：2018-07-26
申请号：PCT/JP2017/047179
申请日：2017-12-28
申请人： SONY CORPORATION
发明人： KIKUCHI, Hiroaki , ONUKI, Jun , HIROSE, Masaki
IPC分类号： G06T5/00 , H04N9/68 , H04N5/235 , H04N19/98 , H04N5/202 , H04N9/69
摘要： There is provided a video signal processing apparatus, including: a first interface configured to obtain a first video signal imaged within a first dynamic range; a second interface configured to obtain information for specifying a partial area of the obtained first video signal; and an arithmetic processing circuit configured to calculate a representative value of brightness of the first video signal of the partial area, to compress a dynamic range of the first video signal depending on the calculated representative value, and to generate a second video signal, a dynamic range of the second video signal being restricted to a second dynamic range narrower than the first dynamic range.

2. 发明申请

WO2007147363A1 一种视频通信伽玛特性的校正方法和装置审中-公开
公开(公告)号：WO2007147363A1
公开(公告)日：2007-12-27
申请号：PCT/CN2007/070121
申请日：2007-06-15
申请人：华为技术有限公司 , 罗忠
发明人：罗忠
IPC分类号： H04N9/69 , H04N7/14
CPC分类号： H04N5/202
摘要： A method and an apparatus for correcting the gamma characteristic of the video communication are provided, the method comprises: obtaining the luminance histogram of the output signal, converting the luminance histogram of the output luminance signal into the luminance distribution probability density function of the output luminance signal, determining the extremal points of the luminance distribution probability density function of the output luminance signal; building the mathematic relation between the extremal points of the luminance distribution probability density function of the output luminance signal and the extremal points of the luminance distribution probability density function of the input luminance signal; converting the mathematic relation between the luminance distribution probability density functions of the input and the output luminance signal respectively and the Gamma characteristic function into the mathematic relation between the luminance distribution probability density function of the output luminance signal and the Gamma characteristic function on the extremal points by using the mathematic relation on the extremal points; solving the converted mathematic relation to determine the Gamma characteristic parameter and executing the Gamma correction in the Gamma step. The method for determining the entirely blind Gamma characteristic parameter of the embodiment makes the Gamma correction more convenient, and extends the applying field of the Gamma correction.

3. 发明申请

WO2004105402A1 METHOD AND APPARATUS FOR INTERPOLATING DATA IN THE VIDEO PICTURE FIELD 审中-公开
标题翻译：用于在视频图像中插入数据的方法和装置
公开(公告)号：WO2004105402A1
公开(公告)日：2004-12-02
申请号：PCT/EP2004/050837
申请日：2004-05-18
申请人： THOMSON LICENSING S.A. , WEITBRUCH, Sebastien , THEBAULT, Cedric , CORREA, Carlos
发明人： WEITBRUCH, Sebastien , THEBAULT, Cedric , CORREA, Carlos
IPC分类号： H04N9/69
CPC分类号： G06F3/14 , G09G3/20 , G09G3/288 , G09G2320/0285 , G09G2320/0606 , G09G2320/0673 , G09G2340/04 , H04N9/69
摘要： The present invention relates to a method for interpolating N data from n values (n k = data (k+1)*p - data k*p with k = 0, 1, 2, ....n, b) storing the n offset values and a start value in a memory, c) interpolating the N data, by calculating: data p*k+a = data p*k + a*offset k /p where a varies between 1 and p. The invention is mainly applicable to plasma display panel.
摘要翻译：本发明涉及一种用于从n个值（n

4. 发明申请

WO0171701A3 SELECTED DATA COMPRESSION FOR DIGITAL PICTORIAL INFORMATION 审中-公开
标题翻译：数字图像信息选择数据压缩
公开(公告)号：WO0171701A3
公开(公告)日：2002-04-04
申请号：PCT/IB0100461
申请日：2001-03-23
申请人： LIGHTHOUSE TECHNOLOGIES LTD , DAVIES PAUL RICHARD , VEN ANTONY VAN DE
发明人： VAN DE VEN ANTONY
IPC分类号： H04N5/202 , G06F13/00 , G06T5/40 , G09G3/20 , G09G3/32 , G09G5/00 , H03M1/62 , H04N5/66 , H04N7/12 , H04N7/26 , H04N9/69
CPC分类号： G09G3/2007 , G06T5/009 , G09G2320/0276 , H04N5/202 , H04N9/69 , H04N19/132 , H04N19/184
摘要： This invention provides a method and apparatus to selectively compress digital image data for the supply of that information to digital display screens or storage. The invention utilizes a digital input containing a non-linear representation between the value and the intended intensity and linearizes this into a higher order number. If the higher order number is below at least a first threshold, it is transmitted or stored on a lower order data system noting that the higher order bits or channels should all be zero. If the higher order value is above the threshold, the highest order bits of that value are transmitted or stored on the lower order data system so that only the lowest order bits are lost. The received input from the lower order data system can then be decoded and the data sent to drive a digital display or otherwise utilized. As the linearization process introduces substantial errors in the lower order numbers and minimal errors in the higher order numbers, this invention seeks to increase the accuracy of those lower order numbers by offsetting this against introducing some additional error into the higher order numbers. Further embodiments utilize multiple stages of compression.
摘要翻译：本发明提供一种选择性地压缩数字图像数据以便将该信息提供给数字显示屏或存储器的方法和装置。本发明利用包含值和预期强度之间的非线性表示的数字输入，并将其线性化为更高次序。如果较高次数低于至少第一阈值，则将其发送或存储在较低阶数据系统上，注意到较高阶位或通道应全部为零。如果较高阶值高于阈值，则该值的最高阶位被发送或存储在较低阶数据系统上，使得仅最低位数丢失。然后可以对来自低阶数据系统的接收的输入进行解码，并发送数据以驱动数字显示或以其他方式使用。由于线性化过程在较高阶数中引入了较低阶数量和最小误差的实质性错误，因此本发明通过抵消这一点来增加那些较低阶数的精度，从而将较高阶数量引入一些附加误差。其他实施例利用多级压缩。

5. 发明申请

WO01015460A1 GAMMA MATCHING OF A VIDEO PROCESSOR BY MEANS OF TWO MEASURED CURRENTS 审中-公开
标题翻译：通过两个测量电流的视频处理器的GAMMA匹配
公开(公告)号：WO01015460A1
公开(公告)日：2001-03-01
申请号：PCT/EP2000/004894
申请日：2000-05-30
IPC分类号： H04N9/72 , H04N9/69
CPC分类号： H04N9/72
摘要： Recent circuit concepts inject measurement lines, for cutoff and drive control of the cathode current, into each colour channel during the vertical frame blanking period. Owing to the physically dependent exponential beam current characteristic profile as a function of the cathode control voltage (VK), the exponent gamma of the characteristic profile and the ratio of two cathode components (IK1 and IK2) are in this case used to form control reference values for cutoff and drive control, this process being started in each case from a fixed value of the exponent gamma or of the ratio of the two cathode currents (IK1 and IK2). However, it has been found that, if a fixed value is assumed for the exponent gamma or for the ratio of the two cathode currents (IK1 and IK2), it is not possible to achieve an optimum result for displaying monochrome pictures. Thus, according to the invention, the exponent gamma is defined as a function of the colour tube (1). The aim in this case is to reduce a gamma -dependent DC voltage offset (u0f) to zero.
摘要翻译：最近的电路概念在垂直帧消隐期间将用于截止和驱动阴极电流的测量线注入每个颜色通道。由于作为阴极控制电压（VK）的函数的物理依赖指数束电流特性曲线，特征曲线的指数γ和两个阴极组件（IK1和IK2）的比值在这种情况下用于形成控制参考用于截止和驱动控制的值，该过程在每种情况下从指数γ的固定值或两个阴极电流（IK1和IK2）的比率开始。然而，已经发现，如果对于指数γ或两个阴极电流（IK1和IK2）的比率假设固定值，则不可能实现用于显示单色图像的最佳结果。因此，根据本发明，指数γ被定义为彩色管（1）的函数。在这种情况下的目的是将伽马相关的直流电压偏移（u0f）降低到零。

6. 发明申请

WO99030483A1 CONTINUOUS GRADATION COMPRESSION DEVICE AND METHOD, CONTINUOUS GRADATION EXPANSION DEVICE AND METHOD, DATA PROCESSOR AND DEVICE AND MEMORY MEDIUM IN WHICH PROGRAMS FOR EXECUTING THE PROGRAMS 审中-公开
标题翻译：连续升级压缩设备和方法，连续升级扩展设备和方法，数据处理器和执行程序的程序的设备和存储介质
公开(公告)号：WO99030483A1
公开(公告)日：1999-06-17
申请号：PCT/JP1998/004982
申请日：1998-11-05
IPC分类号： G06T9/00 , H03M7/30 , H04N1/41 , H04N9/69 , H04N19/00 , H04N19/423 , H04N19/70 , H04N19/80 , H04N19/85 , H04N19/98 , H04N1/393 , H04N7/24
CPC分类号： G06T9/001 , H04N1/41 , H04N9/69
摘要： An image processor by which an excellent image can be obtained even after compression and expansion. A compression circuit (12) has a line scanning unit (22) which divides original image data into color data groups in relation to respective pixels, a line compression unit (24) which expresses the value (y) of the color data corresponding to each pixel position in a predetermined section with a polynominal: y = ax + bx + cx + d wherein (x) denotes the pixel position which is a variable and a parameter calculation unit (26) which obtains the parameters of the polynominal. An expansion circuit (14) has a line expansion unit (34) which obtains the color data values corresponding to the respective pixel positions in accordance with the received parameters and pixel positions. The restored image data are outputted to a display device, etc.
摘要翻译：即使在压缩和扩展之后也可以获得优异的图像的图像处理器。压缩电路（12）具有将原始图像数据相对于各像素分割为彩色数据组的行扫描单元（22），表示与各像素对应的颜色数据的值（y）的行压缩单元（24）在具有多项式的预定部分中的像素位置：y = ax 3 + b x 2 + c x + d其中（x）表示作为变量的像素位置，以及参数计算单元（26）多项式。扩展电路（14）具有线膨胀单元（34），其根据接收的参数和像素位置获得与各个像素位置对应的颜色数据值。将恢复的图像数据输出到显示装置等

7. 发明申请

WO98051089A1 IMAGE SIGNAL PROCESSOR, COLOR VIDEO CAMERA, AND METHOD OF PROCESSING IMAGE SIGNALS 审中-公开
标题翻译：图像信号处理器，彩色视频摄像机以及处理图像信号的方法
公开(公告)号：WO98051089A1
公开(公告)日：1998-11-12
申请号：PCT/JP1998/002035
申请日：1998-05-07
IPC分类号： H04N9/68 , H04N9/69 , H04N9/73
CPC分类号： H04N9/69 , H04N9/68 , H04N9/735
摘要： Three primary color signals R, G and B supplied to input terminals (151R, 151G, 151B) are multiplied by a factor (k) for luminance compression by multipliers (156R, 156G, 156B) while the saturations and hues are maintained, and three primary color signals R', G' and B' are outputted from the multipliers (156R, 156G, 156B). Only the saturations of the color image signals comprising the three primary color signals R', G' and B' are compressed by first saturation compressing circuits (160R, 160G, 160B) so that the highest signal level among the levels of the three primary color signals R', G' and B' may be a clip level while the hues and luminances of the color image signals are maintained. Then only the saturations of three primary color signals R", G" and B" which are produced by the first saturation compressing circuits (160R, 160G, 160B) are compressed by second saturation compressing circuits (163R, 163G, 163B) while the luminances and hues of the three primary color signals R", G" and B" are maintained to generate three primary color signals R*, G* and B* whose saturations of the high luminance parts only are changed.
摘要翻译：提供给输入端子（151R，151G，151B）的三原色信号R，G和B乘以乘法器（156R，156G，156B）进行亮度压缩的因子（k），同时保持饱和度和色调从乘法器（156R，156G，156B）输出原色信号R'，G'和B'。只有包含三原色信号R'，G'和B'的彩色图像信号的饱和度被第一饱和压缩电路（160R，160G，160B）压缩，使得三原色的电平之间的最高信号电平信号R'，G'和B'可以是剪辑电平，而彩色图像信号的色调和亮度被维持。然后，仅由第一饱和压缩电路（160R，160G，160B）产生的三原色信号R“，G”和B“的饱和度由第二饱和压缩电路（163R，163G，163B）压缩，而亮度并且保持三原色信号R“，G”和B“的色调以产生三个基色信号R *，G *和B *，其高亮度部分的饱和度仅被改变。

8. 发明申请

WO2019041397A1 显示装置图像处理方法、图像处理结构及显示装置审中-公开
公开(公告)号：WO2019041397A1
公开(公告)日：2019-03-07
申请号：PCT/CN2017/102229
申请日：2017-09-19
申请人：惠科股份有限公司 , 重庆惠科金渝光电科技有限公司
发明人：赵文勤
IPC分类号： H04N9/64 , H04N9/69 , G09G5/06
摘要：本申请关于一种显示装置图像处理方法、图像处理结构及显示装置，将显示装置画面分为数个主像素区块及数个子像素区块，通过伽马模块调整显示装置画面的白色点坐标，通过高电压伽马模块及低电压伽马模块分别取得高电压灰度值查找表及低电压灰度值查找表，透过第一选择模块依据主像素区块及子像素区块的排列选择输出高电压灰度值查找表或低电压灰度值查找表透过色彩饱和度计算模块计算显示装置画面的色彩饱和度，第二选择模块依据白色点坐标、高电压灰度值查找表或低电压灰度值查找表及色彩饱和度，调整所述显示装置中的可视角色度值。

9. 发明申请

WO2016119979A1 SIMPLE BUT VERSATILE DYNAMIC RANGE CODING 审中-公开
标题翻译：简单但动态的动态范围编码
公开(公告)号：WO2016119979A1
公开(公告)日：2016-08-04
申请号：PCT/EP2015/080907
申请日：2015-12-22
申请人： KONINKLIJKE PHILIPS N.V.
发明人： VAN DER VLEUTEN, Renatus Josephus , STESSEN, Jeroen Hubert Christoffel Jacobus , MERTENS, Mark Jozef Willem
IPC分类号： G06T5/00 , H04N5/235 , H04N9/68 , H04N9/69
CPC分类号： G06T5/009 , G06T2207/20092 , G06T2207/20096 , G06T2207/20208 , H04N5/235 , H04N5/2355 , H04N9/69 , H04N19/182 , H04N19/98
摘要： For obtaining an good yet easy to use luminance dynamic range conversion, we describe an image color processing apparatus (200) arranged to transform an input color (R,G,B) of a pixel of an input image (Im_in) having a first luminance dynamic range into an output color (Rs, Gs, Bs) of a pixel of an output image (Im_res) having a second luminance dynamic range, which first and second dynamic ranges differ in extent by at least a multiplicative factor 2, comprising: a maximum determining unit (101) arranged to calculate a maximum (M) of color components of the input color, the color components at least comprising a red, green and blue component; - a uniformization unit (201) arranged to apply a function (FP) to the maximum (M) as input, which function has a logarithmic shape and was predetermined to be of a fixed shape enabling to transform a linear input to a more perceptually uniform output variable (u); a function application unit (203) arranged to receive a functional shape of a function, which was specified previously by a human color grader, and apply the function to the uniform output variable (u), yielding a transformed uniform value (TU); a linearization unit (204) arranged to transform the transformed uniform value (TU) to a linear domain value (LU); a multiplication factor determination unit (205) arranged to determine a multiplication factor (a) being equal to the linear domain value (LU) divided by the maximum (M); and a multiplier (104) arranged to multiply at least three linear color components (R,G,B) by the multiplication factor (a), yielding the output color.
摘要翻译：为了获得良好且易于使用的亮度动态范围转换，我们描述了一种图像颜色处理装置（200），其被设置为将具有第一亮度的输入图像（Im_in）的像素的输入颜色（R，G，B）动态范围变换为具有第二亮度动态范围的输出图像（Im_res）的像素的输出颜色（Rs，Gs，Bs），所述第一和第二动态范围的程度至少乘以乘法因子2，包括：a 最大确定单元（101），被布置为计算输入颜色的颜色分量的最大值（M），所述颜色分量至少包括红色，绿色和蓝色分量; - 将功能（FP）应用于最大（M）作为输入的均匀化单元（201），该功能具有对数形状并被预定为固定形状，使得能够将线性输入变换为更感知均匀输出变量（u）; 功能应用单元（203），其被布置为接收由人类分级器预先指定的功能的功能形状，并将该功能应用于均匀输出变量（u），产生变换均匀值（TU）; 布置成将变换的均匀值（TU）变换为线性域值（LU）的线性化单元（204）; 确定乘法因子（a）等于线性域值（LU）除以最大值（M）的倍增因子确定单元（205）; 以及乘法器（104），其被布置成将至少三个线性颜色分量（R，G，B）乘以乘法因子（a），从而产生输出颜色。

10. 发明申请

WO2016106820A1 显示面板的参数设置方法及装置审中-公开
公开(公告)号：WO2016106820A1
公开(公告)日：2016-07-07
申请号：PCT/CN2015/070503
申请日：2015-01-12
申请人：深圳市华星光电技术有限公司
发明人：金羽锋 , 李浩 , 何振伟
IPC分类号： G09G5/02 , H04N5/202 , H04N9/69
CPC分类号： G09G5/02 , H04N5/202 , H04N9/69
摘要：一种显示面板的参数设置方法及装置，参数设置方法包括：获取显示面板的预定显示信息（301）；根据预定显示信息计算第一颜色分量的第一亮度值和第一参数（302）；根据第一亮度值和预定显示信息计算与第二颜色分量对应的第二参数、与第三颜色分量对应的第三参数、与白色分量对应的第四参数（303）；将第一、第二、第三和第四参数录入到显示面板中（304）。该参数设置方法能降低显示面板参数设置的难度。

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