Method and apparatus for generating motion compensated pictures
    1.
    发明授权
    Method and apparatus for generating motion compensated pictures 有权
    用于产生运动补偿图像的方法和装置

    公开(公告)号:US08355441B2

    公开(公告)日:2013-01-15

    申请号:US11791294

    申请日:2005-12-08

    摘要: The present invention relates to a new method for generating motion compensated picture by interpolating two consecutive source pictures without using motion estimator. For a given pixel to be interpolated, all displacements within a given search range between former and next frame are considered and for each displacement the displaced block difference is calculated. The pixel value is then equal to the sum of each averaged pixel pair within the search range weighted by a correlation coefficient function of the corresponding displaced block difference.

    摘要翻译: 本发明涉及一种通过在不使用运动估计器的情况下内插两个连续的源图像来产生运动补偿图像的新方法。 对于要插值的给定像素,考虑在前一帧和下一帧之间的给定搜索范围内的所有位移,并且对于每个位移,计算位移块差。 然后,像素值等于由相应的位移块差的相关系数函数加权的搜索范围内的每个平均像素对的和。

    Method and apparatus for power level control of a display device
    2.
    发明授权
    Method and apparatus for power level control of a display device 有权
    一种用于显示装置的功率电平控制的方法和装置

    公开(公告)号:US08279214B2

    公开(公告)日:2012-10-02

    申请号:US11595294

    申请日:2006-11-09

    IPC分类号: G09G5/00

    摘要: The invention concerns a video processing for improving the picture quality of picture which are displayed on display devices like plasma display panels and all kind of display devices based on the principle of duty cycle modulation of light emission and for reducing the average power dissipation. The basic idea behind the invention is to generate only the required amount of sustain pulses that effectively produce light and to avoid generating unnecessary sustain pulses. To this end, the video range of the input video is increased in order to be equal to a nominal range, 255 in the case of a 8-bit coding, and a power level mode with a reduced number of sustain pulses is selected to keep constant the brightness of the image. The number of sustain pulses that do not produce light is reduced.

    摘要翻译: 本发明涉及一种视频处理,用于根据发光的占空比调制原理和用于降低平均功耗的方式,提高在等离子体显示面板和各种显示装置等显示装置上显示的画面的画面质量。 本发明的基本思想是仅产生所需量的有效产生光的维持脉冲,并避免产生不必要的维持脉冲。 为此,输入视频的视频范围增加以便等于标称范围,在8位编码的情况下为255,并且选择具有减少的维持脉冲数的功率电平模式以保持 恒定图像的亮度。 不产生光的维持脉冲的数量减少。

    Method and apparatus for power level control in a display device
    3.
    发明授权
    Method and apparatus for power level control in a display device 有权
    显示装置中功率电平控制的方法和装置

    公开(公告)号:US07986316B2

    公开(公告)日:2011-07-26

    申请号:US11594290

    申请日:2006-11-08

    IPC分类号: G09G5/00

    摘要: The invention relates to a method for power level control of a display device and an apparatus for carrying out the method. Classically, a power level mode defining a subfield organization to be used for subfield coding is selected as a function of the average power level of the picture to be displayed for keeping constant the power consumption of the display device. According to the invention, it is proposed to select the power level mode as a function of the input frame frequency in such a way as to have as little as possible deviations from nominal peak white and full white values at the same time that an overloading of the panel power supply is prevented. More particularly, the number of sustain pulses within the video frame and selected by the power level mode is modified as a function of the input frame frequency.

    摘要翻译: 本发明涉及一种显示装置的功率电平控制方法及其实施方法。 通常,定义要用于子场编码的子场组织的功率电平模式被选择为要显示的图像的平均功率电平的函数,以保持显示装置的功耗恒定。 根据本发明,提出了将功率电平模式选择为输入帧频率的函数,使得与标称峰值白色和全白色值的偏差尽可能小,同时使得 防止面板电源。 更具体地,根据输入帧频率修改视频帧内的由功率电平模式选择的维持脉冲的数量。

    Method And Apparatus For Generating Motion Compensated Pictures
    5.
    发明申请
    Method And Apparatus For Generating Motion Compensated Pictures 有权
    用于生成运动补偿图像的方法和装置

    公开(公告)号:US20080030613A1

    公开(公告)日:2008-02-07

    申请号:US11791294

    申请日:2005-12-08

    IPC分类号: H04N11/02

    摘要: The present invention relates to a new method for generating motion compensated picture by interpolating two consecutive source pictures without using motion estimator. For a given pixel to be interpolated, all displacements within a given search range between former and next frame are considered and for each displacement the displaced block difference is calculated. The pixel value is then equal to the sum of each averaged pixel pair within the search range weighted by a correlation coefficient function of the corresponding displaced block difference.

    摘要翻译: 本发明涉及一种通过在不使用运动估计器的情况下内插两个连续的源图像来产生运动补偿图像的新方法。 对于要插值的给定像素,考虑在前一帧和下一帧之间的给定搜索范围内的所有位移,并且对于每个位移,计算位移块差。 然后,像素值等于由相应的位移块差的相关系数函数加权的搜索范围内的每个平均像素对的和。

    Method for optimizing brightness in a display device and apparatus for implementing the method
    6.
    发明授权
    Method for optimizing brightness in a display device and apparatus for implementing the method 有权
    用于优化显示装置中的亮度的方法和用于实现该方法的装置

    公开(公告)号:US07173580B2

    公开(公告)日:2007-02-06

    申请号:US10744955

    申请日:2003-12-23

    IPC分类号: G09G3/28

    摘要: The invention relates to a method for optimizing brightness in a display device having a plurality of luminous elements corresponding to the pixels of a picture, wherein the time duration of a video frame or video field is divided into a plurality of sub fields during which the luminous elements can be activated for light emission with sustain pulses corresponding to a sub field code word which is used for brightness control, the total number of sustain pulses being determined in view of a selected power mode function of picture load the method including the following steps: setting a threshold value in relation to the picture load, comparing, for a frame, the number of the current sustain pulse to said threshold value, if the number of the current sustain pulses is below the threshold value, the sustain pulses are generated at a fixed frequency, if the number of the current sustain pulses is above the threshold value, the sustain pulses are generated at an evolving frequency. This invention applies mainly to PDP and all displays controlled by using a PWM.

    摘要翻译: 本发明涉及一种用于优化具有对应于图像的像素的多个发光元件的显示装置中的亮度的方法,其中视频帧或视频场的持续时间被划分为多个子场,在此期间发光 元件可以被激活以发光,其中维持脉冲对应于用于亮度控制的子场码字,维持脉冲的总数是根据所选择的图像负载的功率模式函数确定的,该方法包括以下步骤: 设置相对于图像负载的阈值,将帧的当前维持脉冲的数目与所述阈值进行比较,如果当前维持脉冲的数量低于阈值,则维持脉冲在 固定频率,如果当前维持脉冲的数目高于阈值,则以演变频率产生维持脉冲。 本发明主要适用于PDP和使用PWM控制的所有显示器。

    Method and apparatus for processing video pictures, in particular in film mode sequences
    7.
    发明授权
    Method and apparatus for processing video pictures, in particular in film mode sequences 有权
    用于处理视频图像的方法和装置,特别是在胶片模式序列中

    公开(公告)号:US07911545B2

    公开(公告)日:2011-03-22

    申请号:US10583211

    申请日:2004-12-14

    摘要: The invention relates to a method for processing video pictures, the video pictures consisting of pixels digitally coded, the digital code word determining the length of the time period during which the corresponding pixel of a display is activated, wherein to each bit of a digital code word a certain activation duration called sub-field is assigned, the sum of the duration of the sub-fields according to a given code word determining the length of the time period during which the corresponding pixel is activated, said method comprising the following steps: detecting the video pictures source mode and the parity between pictures, if the source is in film mode, distributing the total number of sub-fields used for two frame raster in three groups of sub-fields and assigning to a value of a pixel a code word that corresponds to the distribution of the active sub-fields period over the three sub-fields groups, and if the source is in camera mode, distributing the total number of sub-fields used for each frame raster in two groups of sub-fields and assigning to a value of a pixel a code word that corresponds to the distribution of the active sub-fields period over the two sub-fields groups. The invention is applicable to all kinds of displays based on the principle of duty cycle modulation.

    摘要翻译: 本发明涉及一种用于处理视频图像的方法,包括由数字编码的像素组成的视频图像,数字码字确定显示器的相应像素被激活的时间段的长度,其中数字码的每一位 字被分配了称为子字段的某个激活持续时间,根据确定对应像素被激活的时间段的长度的给定码字,子场的持续时间的总和,所述方法包括以下步骤: 检测视频图像源模式和图像之间的奇偶校验,如果源处于胶片模式,则将用于两帧光栅的子场的总数分布在三组子场中并将其分配给像素的代码 对应于三个子域组上的有效子场周期的分布的字,并且如果源处于摄像机模式,则分发子场的总数 用于两组子场中的每个帧光栅,并将与对应于两个子场组上的有效子场周期的分布的码字分配给像素的值。 本发明适用于基于占空比调制原理的各种显示器。

    Method and device for encoding luminance values into subfield code words in a display device
    8.
    发明授权
    Method and device for encoding luminance values into subfield code words in a display device 有权
    用于将亮度值编码为显示装置中的子字段代码字的方法和装置

    公开(公告)号:US07804509B2

    公开(公告)日:2010-09-28

    申请号:US11522767

    申请日:2006-09-18

    IPC分类号: G09G5/10

    摘要: The invention relates to a method and a device for encoding the luminance value of a pixel of a picture into a subfield code word in a display device. It can be applied to every display device using a PWM (Pulse Width Modulation) technology and subfields for displaying video picture. It can be used to compensate for any luminance problem that can be estimated. The general idea of the recursive coding is to encode one sub-field after the other in order to be able to compensate for problems occurring on one sub-field with the other sub-fields. More particularly, the bits of a subfield code word are computed recursively one after the other such that the defects (e.g. line load and/or linearity) in the light emission or luminance generated by a bit of the subfield code word can be compensated by the following bits of the subfield code word.

    摘要翻译: 本发明涉及一种用于将图像的像素的亮度值编码为显示装置中的子字段代码字的方法和装置。 它可以应用于每个显示设备使用PWM(脉宽调制)技术和子字段来显示视频图像。 它可以用于补偿任何可以估计的亮度问题。 递归编码的一般思想是将一个子场重新编码,以便能够补偿在一个子场与其他子场发生的问题。 更具体地说,副场码字的位逐个递归地计算,使得由子场码字的位产生的光发射或亮度中的缺陷(例如线路负载和/或线性度)可以由 子字段代码字的后续位。

    Method and device for processing video data by using specific border coding
    9.
    发明授权
    Method and device for processing video data by using specific border coding 有权
    使用特定边界编码处理视频数据的方法和装置

    公开(公告)号:US07796138B2

    公开(公告)日:2010-09-14

    申请号:US10584743

    申请日:2004-12-20

    IPC分类号: G09G5/00

    摘要: Response fidelity problems appear for some specific video levels at PDP borders. The reason is that some cells at the border of the PDP panel are not completely closed and pollute when switched ON neighbouring cells being OFF. Therefore, it is suggested to encode the video levels in the border area in a specific way. Especially, for critical sub-fields within the code it is forbidden to insert a binary 0 between two binary 1. Thus, the neighbourhood of critical sub-fields being ON and OFF is avoided. Preferably, the specific border coding is performed under the control of an average power management and codewords being not used are recreated by dithering.

    摘要翻译: 针对PDP边界的某些特定视频级别出现响应保真问题。 原因是在PDP面板的边界处的一些单元不是完全关闭,并且在接通相邻单元关闭时被污染。 因此,建议以特定方式对边界区域中的视频级别进行编码。 特别地,对于代码中的关键子字段,禁止在二进制1之间插入二进制0。因此,避免了关键子字段的邻域为ON和OFF。 优选地,在平均功率管理的控制下执行特定边界编码,并且通过抖动来重新创建不使用的码字。

    Method and device for processing video data by combining error diffusion and another dithering
    10.
    发明授权
    Method and device for processing video data by combining error diffusion and another dithering 有权
    通过组合误差扩散和另一种抖动来处理视频数据的方法和装置

    公开(公告)号:US07738719B2

    公开(公告)日:2010-06-15

    申请号:US11186471

    申请日:2005-07-21

    IPC分类号: G06K9/00 G06K15/00

    CPC分类号: G09G3/2066

    摘要: For improving the grey scale portrayal, several dithering methods are used: Cell-based dithering, multi-mask dithering or error diffusion. Each of them has specific disadvantages. A simple combination of them does not bring expected advantages. However, an improvement is obtained if the result of the multi-mask dithering is used for controlling the error diffusion by a switch, for example.

    摘要翻译: 为了改善灰度图形,使用了几种抖动方法:基于单元的抖动,多掩码抖动或误差扩散。 他们每个都有特定的缺点。 它们的简单组合不会带来预期的优势。 然而,例如,如果将多掩模抖动的结果用于通过开关来控制误差扩散,则获得了改进。