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    Method and apparatus for generating subfield codes
    3.
    发明公开
    Method and apparatus for generating subfield codes 审中-公开
    Verfahren und Vorrichtung zur Erzeugung von Teilfeldsteuerworten

    公开(公告)号：EP1638068A1

    公开(公告)日：2006-03-22

    申请号：EP05108347.5

    申请日：2005-09-12

    申请人： Thomson Licensing

    发明人： Weitbruch, Sebastien ,  Correa, Carlos ,  Thebault, Cedric

    IPC分类号： G09G3/28

    CPC分类号： G09G3/288 ,  G09G3/2029 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/0673 ,  G09G2360/16

    摘要： The present invention relates to a method and an apparatus for generating subfield codes for pictures displayed on a display device like plasma display panels (PDPs) or display devices wherein the grey level of the pixels of the pictures displayed by the display device is obtained by modulating the number of light pulses per frame or sustain pulses (PWM for Pulse Width Modulation), the number of sustain pulses per subfield of the frame depending on the power average level of the picture to be displayed. The video levels of the pictures are first transcoded into luminance codes and then coded into subfield codes. In order to reduce the memory size required for implementing this transcoding, offset values between luminance codes are stored in a look-up table instead of storing the luminance codes. The luminance codes are then regenerated in the controller of the display device.

    摘要翻译： 本发明涉及一种用于生成显示在诸如等离子体显示面板（PDP）或显示装置的显示装置上的图像的子场编码的方法和装置，其中由显示装置显示的图像的像素的灰度级通过调制 每帧的光脉冲数或维持脉冲数（PWM用于脉冲宽度调制），根据要显示的图像的功率平均电平，每个子场的子场的维持脉冲数。 图像的视频电平首先被转码为亮度代码，然后被编码成子字段代码。 为了减少实现该代码转换所需的存储器大小，将亮度代码之间的偏移值存储在查找表中，而不是存储亮度代码。 然后在显示装置的控制器中重新生成亮度代码。

    Method for evaluating video quality
    5.
    发明公开
    Method for evaluating video quality 审中-公开
    一种用于评估视频质量的方法

    公开(公告)号：EP2362673A3

    公开(公告)日：2014-03-12

    申请号：EP10195684.5

    申请日：2010-12-17

    申请人： Thomson Licensing

    发明人： Mueller, Stefan ,  Weitbruch, Sebastien ,  Robert, Arnaud

    IPC分类号： H04N17/00

    CPC分类号： H04N17/004

    摘要： A method for evaluating video quality of a video stream comprising the steps of
    a) calculating, for at least a first frame of a series of frames from said video stream, a true value of at least one video quality-related parameter associated to said first frame;
    b) calculating a predicted value of said video quality-related parameter for at least a second frame from said series of frames, the prediction being based on said true value associated to said first frame;
    c) calculating a true value of said video quality-related parameter associated to said second frame; and
    d) determining a value indicative of the video quality of said second frame from the difference between true and predicted values of the at least one video quality-related parameter associated to said second frame.

    Method and device for processing video data for display on a display device
    7.
    发明公开
    Method and device for processing video data for display on a display device 有权
    方法和装置的视频数据的预处理用于显示在显示设备上

    公开(公告)号：EP1387343A2

    公开(公告)日：2004-02-04

    申请号：EP03102129.8

    申请日：2003-07-11

    申请人： Thomson Licensing S.A.

    发明人： Weitbruch, Sebastien ,  Thebault, Cedric ,  Doyen, Didier

    IPC分类号： G09G3/28

    CPC分类号： G09G3/2051 ,  G09G3/2022 ,  G09G3/28 ,  G09G2320/0261 ,  G09G2320/0276 ,  G09G2320/106

    摘要： In order to improve the picture quality of plasma display panels and to reduce differences to present CRTs dithering is used. However, the dithering pattern may appear on the retina for some movement having a spatio-temporal period similar to those from dithering. Therefore, it is proposed to use motion vectors coming from a motion estimator (14) in order to suppress the visibility of the dithering in case of motion. Then, for the viewer the quality of moving pictures will be similar to those obtained for static pictures.

    摘要翻译： 为了提高等离子体显示面板的图像质量和降低的差异来呈现的CRT抖动被使用。 然而，抖动图案可能出现在视网膜上为具有类似于从抖动时空期间一些移动。 因此，建议以抑制在运动的情况下，抖动的可见度使用从运动估计器（14）来的运动矢量。 然后，观众运动图像的质量将类似于那些获得静态图片。

    Method of driving a plasma display panel
    8.
    发明公开
    Method of driving a plasma display panel 审中-公开
    Verfahren zur Steuerung einer Plasmaanzeige

    公开(公告)号：EP1365382A1

    公开(公告)日：2003-11-26

    申请号：EP03291189.3

    申请日：2003-05-20

    申请人： Thomson Licensing S.A.

    发明人： Weitbruch, Sebastien ,  Thebault, Cedric ,  Bader, Bernd

    IPC分类号： G09G3/28

    CPC分类号： G09G3/2029 ,  G09G3/2927 ,  G09G3/293 ,  G09G3/2948 ,  G09G2310/0232 ,  G09G2320/0285 ,  G09G2360/16

    摘要： The present invention relates to a method for processing video pictures for display on a display device comprising a plurality of lines constituted by luminous elements called cells corresponding to the pixels of a picture, wherein the time duration of a video frame is divided into a plurality of sub-field periods during which the cells can be activated for light emission, a sub-field period being divided into an addressing period wherein the plurality of lines is scanned line by line, a sustaining period and an erasing period, wherein, in the addressing period, the addressing time is different from one line to an other. The invention is mainly used in PDP technology.

    摘要翻译： 本发明涉及一种用于处理视频图像的方法，用于在显示装置上显示，包括由对应于图像的像素的发光元件构成的多个线，其中视频帧的持续时间被划分为多个 子场期间，其中单元可以被激活用于发光，子场周期被划分为寻址周期，其中多条线被逐行扫描，维持周期和擦除周期，其中在寻址 期间，寻址时间不同于一行到另一行。 本发明主要用于PDP技术。

    Method for evaluating video quality
    10.
    发明公开
    Method for evaluating video quality 审中-公开
    评估视频质量的方法

    公开(公告)号：EP2362673A2

    公开(公告)日：2011-08-31

    申请号：EP10195684.5

    申请日：2010-12-17

    申请人： Thomson Licensing

    发明人： Mueller, Stefan ,  Weitbruch, Sebastien ,  Robert, Arnaud

    IPC分类号： H04N17/00

    CPC分类号： H04N17/004

    摘要： A method for evaluating video quality of a video stream comprising the steps of
    a) calculating, for at least a first frame of a series of frames from said video stream, a true value of at least one video quality-related parameter associated to said first frame;
    b) calculating a predicted value of said video quality-related parameter for at least a second frame from said series of frames, the prediction being based on said true value associated to said first frame;
    c) calculating a true value of said video quality-related parameter associated to said second frame; and
    d) determining a value indicative of the video quality of said second frame from the difference between true and predicted values of the at least one video quality-related parameter associated to said second frame.

    摘要翻译： 一种用于评估视频流的视频质量的方法，包括以下步骤：a）对于来自所述视频流的一系列帧的至少第一帧，计算与所述第一帧相关联的至少一个视频质量相关参数的真值 帧; b）针对来自所述一系列帧的至少第二帧计算所述视频质量相关参数的预测值，所述预测基于与所述第一帧相关联的所述真值; c）计算与所述第二帧相关的所述视频质量相关参数的真值; 以及d）根据与所述第二帧相关的所述至少一个视频质量相关参数的真值和预测值之间的差来确定指示所述第二帧的视频质量的值。