公开(公告)号：EP1286554A3

公开(公告)日：2005-04-20

申请号：EP02018078.2

申请日：2002-08-13

申请人： CANON KABUSHIKI KAISHA

发明人： Fukui, Takaaki, c/oCanon Kabushiki Kaisha ,  Ikeda, Eiichiro, c/oCanon Kabushiki Kaisha

IPC分类号： H04N9/64 ,  H04N9/68

CPC分类号： H04N9/68 ,  H04N9/646

摘要： The present invention relates to a chrominance signal processing apparatus (510) and method for providing optimal color processing according to the hue of the color image data. Red, green and blue signals are input to a chroma composition ratio determination circuit (550) that generates and outputs the RGB color composition ratio (α:β:γ). A chroma suppression luminance signal generating circuit (560) then generates a chroma suppression luminance signal Ya based on the RGB signals and the color composition ratio. A chroma suppression gain determination circuit (570) outputs the gain for the chroma suppression luminance signal based on a table in which output gain setting values corresponding to the chroma suppression luminance signals are recorded. Multipliers (581, 582) then multiply input color-difference signals Cr, Cb by the gain and output a suppressed color-difference signals (Cr x G, Cb x G) according to the color composition ratio (α:β:γ)

公开(公告)号：EP1168851A3

公开(公告)日：2005-02-09

申请号：EP01305090.1

申请日：2001-06-12

申请人： SONY UNITED KINGDOM LIMITED

发明人： Miller, Robin James, c/o Sony ,  McGaffney, John Roderick ,  Ikin, Bruce ,  Mayes, David

IPC分类号： H04N9/64 ,  H03M1/18 ,  H04N9/73

CPC分类号： H04N9/72

摘要： An interface circuit 13 is provided for a display apparatus 3 such as a television. The display apparatus 3 comprises a video signal processing circuit 8 for processing a composite video signal to derive colour component signals having variable black and white levels; a linear amplifier 10 for amplifying the colour component signals; and a display device 4 such as a CRT driven by the output of the linear amplifier 10. The interface circuit 13 is provided to interface the colour component signals with a digital signal processor 14. The interface circuit 13 includes a modification circuit 22 arranged to perform a modification of voltage levels of the colour component signals and to output the modified colour component signals to the digital signal processor 14 via an A/D convertor 18. The interface circuit 13 further includes a remodification circuit 23 arranged to receive processed colour component signals supplied from the digital signal processor 14 via a D/A convertor 19 and to perform a modification of the processed colour component signals which is the inverse of the modification performed by the modification circuit 22. The modification and remodification circuits 22, 23 use calibration signals including the black and white levels of the colour component signals inserted in a predetermined period in the vertical blanking interval of the colour component signal. The interface circuit 13 reduces the resolution necessary in the A/D convertor 18.

公开(公告)号：EP1482743A3

公开(公告)日：2005-01-19

申请号：EP04010258.4

申请日：2004-04-30

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： Hirashima, Tsuyoshi ,  Ikeda, Jun ,  Ojima, Shuichi ,  Hata, Ryouta ,  Kiuchi, Shinya

IPC分类号： H04N9/64 ,  H04N9/68

CPC分类号： H04N1/628 ,  H04N9/64 ,  H04N9/643

摘要： A specific color-adjusting stage (100) adjusts data of an inputted color with respect to a specific color. A total color-adjusting stage (200) adjusts the data of the inputted color with respect to a total color. The specific color-adjusting stage (100) and the total color-adjusting stage (200) are provided in parallel. A composing unit (16) composes linearly an output of the specific color-adjusting stage (100) and an output of the total color-adjusting stage (200). When a degree that the total color-adjusting stage (200) adjusts the data of the inputted color increases, then a degree that the specific color-adjusting stage (100) adjusts the data of the inputted color decreases, and vice versa.

公开(公告)号：EP1491048A1

公开(公告)日：2004-12-29

申请号：EP03745157.2

申请日：2003-03-19

申请人： Scientific-Atlanta, Inc.

发明人： WEST, John, Eric ,  RODRIGUEZ, Arturo, A.

IPC分类号： H04N7/16 ,  H04N9/64

CPC分类号： H04N7/16 ,  H04N5/76 ,  H04N5/775 ,  H04N5/781 ,  H04N9/8042 ,  H04N21/4147 ,  H04N21/4263 ,  H04N21/4331 ,  H04N21/44016

摘要： A system is provided for managing and accessing media content (Fig. 5A) received via a plurality of display channels and stored in a plurality of buffers in a storage device. The system associates the plurality of buffers with a composite buffer file (500).

摘要翻译： 提供一种用于管理和访问经由多个显示通道接收的并存储在存储设备中的多个缓冲器中的媒体内容（图5A）的系统。 系统将多个缓冲区与复合缓冲区文件（500）相关联。

公开(公告)号：EP1486946A1

公开(公告)日：2004-12-15

申请号：EP03708608.9

申请日：2003-03-14

申请人： SEIKO EPSON CORPORATION

发明人： Kanai, Masashi c/o Seiko Epson Corporation

IPC分类号： G09G5/02 ,  G09G5/00 ,  G09G5/06 ,  G06T1/00 ,  H04N9/64

CPC分类号： H04N9/3182 ,  G06T11/001 ,  G09G5/04 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2360/144 ,  H04N5/58 ,  H04N9/31 ,  H04N9/3194 ,  H04N9/64 ,  H04N9/69 ,  H04N9/73 ,  H04N17/04

摘要： The purpose of the present invention is to provide an image display device, an image processing method, and a computer-readable medium which can perform proper color reproduction while saving memory capacity.
The image display device of the present invention, which applies a desired image processing to an input image data so as to display an image, uses a 1st color corrector 110 to refer to a three-dimensional color correction table which matches a color characteristic of the image display device with a reference color characteristic based on a characteristic value of the image display device, and to apply desired color correction to the inputted image data. Then, the image display device uses 2nd color correction means 120 to refer to a one-dimensional color correction table for correcting gradation according to an application circumstances, and applies desired color correction to the inputted image data.

摘要翻译： 本发明的目的是提供一种图像显示装置，图像处理方法和计算机可读介质，其可以在节省存储容量的同时进行适当的颜色再现。 本发明的图像显示装置，其对输入图像数据应用期望的图像处理以便显示图像，使用第一色彩校正器110来参考三维颜色校正表，其与 具有基于图像显示装置的特征值的基准颜色特性的图像显示装置的颜色特性，并且对所输入的图像数据应用期望的颜色校正。 然后，图像显示装置使用第二颜色校正装置120来参考根据应用环境来校正灰度的一维颜色校正表，并且对所输入的图像数据应用期望的颜色校正。

公开(公告)号：EP0620681B1

公开(公告)日：2004-12-15

申请号：EP94105619.4

申请日：1994-04-12

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： Ninomiya, Kazuki ,  Yoshioka, Shirou ,  Nishiyama, Tamotsu ,  Miyake, Jiro ,  Hasegawa, Katsuya

IPC分类号： H04N5/46 ,  H04N9/64 ,  H04N5/14 ,  H04N9/78

CPC分类号： H04N9/642 ,  H04N5/46 ,  H04N5/907 ,  H04N7/0152

公开(公告)号：EP1484742A2

公开(公告)日：2004-12-08

申请号：EP04102019.9

申请日：2004-05-10

申请人： Samsung Electronics Co., Ltd.

发明人： Lee, Sang-jin ,  Kim, Moon-cheol

IPC分类号： G09G5/02 ,  H04N9/64

CPC分类号： H04N9/67 ,  G09G5/02

摘要： A color signal processing apparatus for calculating a control vector for driving a multi-primary display (MPD) corresponding to an input color signal. The color signal processing apparatus comprises an XYZ color signal conversion unit (110) for converting an input color signal into a device-independent color signal and determining a color gamut of the MPD based on a Forward Model. The color gamut is divided into a plurality of pyramids, and intermediate values based on the plurality of pyramids are calculated by parallel calculating means (Q 1 -Q N ). A set of intermediate values based on predetermined physical restrictions are selected by a restriction control checking unit (130). The control vector is calculated, based on the restricted values, by a control vector arrangement unit (150). This arrangement does not require a look-up table for determining the color gamut and thereby avoids quantization errors.

摘要翻译： 一种颜色信号处理装置，用于计算用于驱动对应于输入颜色信号的多原色显示器（MPD）的控制矢量。 彩色信号处理装置包括：XYZ彩色信号转换单元，用于将输入的彩色信号转换为与设备无关的颜色信号，并根据正向模型确定MPD的色域。 色域被分成多个棱锥，并且通过并行计算装置（Q 1 -Q N）来计算基于多个金字塔的中间值。 基于预定的物理限制的一组中间值由限制控制检查单元（130）选择。 基于受限制的值由控制向量排列单元（150）计算控制向量。 这种布置不需要用于确定色域的查找表，从而避免了量化误差。

公开(公告)号：EP1347654A3

公开(公告)日：2004-11-24

申请号：EP03005357.3

申请日：2003-03-12

申请人： VICTOR COMPANY OF JAPAN, LIMITED

发明人： Uchida, Tomoaki

IPC分类号： H04N9/68 ,  H04N9/64

CPC分类号： H04N9/68 ,  H04N9/643

摘要： An angle calculation unit (4) calculates an angle (T) formed by color difference signals R-Y, B-Y of each input pixel. Correction gain calculation units (51 to 5n) use the angle (T) as a parameter to generate correction gains of hue, chroma, luminance (Y) gamma, and chroma (C) gamma for only correction regions. Accumulators (6 to 9) accumulate the respective correction gains. In a circuit including from a multiplier (10) to a multiplier (18), the color difference signals R-Y, B-Y are multiplied by the correction gains of hue and chroma to correct the hue and chroma. A luminance/color difference gamma processing unit (19) uses a correction function and correction gains of Y, C gammas to gamma-correct a luminance signal Y and color difference signals R-Y, B-Y.

摘要翻译： 角度计算单元（4）计算由每个输入像素的色差信号R-Y，B-Y形成的角度（T）。 校正增益计算单元（51至5n）使用角度（T）作为参数，以仅为校正区域产生色相，色度，亮度（Y）伽马和色度（C）伽马的校正增益。 蓄电池（6〜9）累积相应的校正增益。 在从乘法器（10）到乘法器（18）的电路中，色差信号R-Y，B-Y乘以色调和色度的校正增益，以校正色调和色度。 亮度/色差伽马处理单元（19）使用校正函数和Y，C伽马的校正增益来伽玛校正亮度信号Y和色差信号R-Y，B-Y。

公开(公告)号：EP1051043B1

公开(公告)日：2004-11-17

申请号：EP00116759.2

申请日：1994-04-18

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： Hanai, Masaaki, c/o Mitsubishi Denki K.K.

IPC分类号： H04N9/64 ,  H04N9/77 ,  H04N5/208

CPC分类号： H04N9/68 ,  H04N5/208 ,  H04N9/646 ,  H04N9/77

公开(公告)号：EP1474931A1

公开(公告)日：2004-11-10

申请号：EP03700161.7

申请日：2003-01-20

申请人： Koninklijke Philips Electronics N.V.

发明人： SMITS, Emmanuel, J., H. ,  DJAPIC, Boris ,  KOUSHIK, Kadar, S., S., T.

IPC分类号： H04N9/64

CPC分类号： H04N9/641

摘要： A video-processing apparatus (9) comprises a single input set (10) comprising input connectors (11, 12, 13, 14, 15) for receiving a video signal (S) having a format selected from a plurality of potential formats;video signal processing circuitry (101; 102) which is capable of processing each of the plurality of potential video formats;and synchronization signal analyzing circuitry (30; 60) arranged to analyze any synchronization signals incorporated in the video signal (S) to determine the format of the video signal (S) actually received at the single input set (10). The synchronization signal analyzing circuitry is arranged to adapt the video signal processing circuitry (101; 102) in conformity with the format of the video signal actually received at the single input set.