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Method and device for processing video data by using specific border coding

A technology of video data and video, which is applied in the field of corresponding equipment for processing video data, and can solve problems such as interference

Inactive Publication Date: 2007-01-24
THOMSON LICENSING SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this does not occur in a uniform manner, but only certain specific video levels are disturbed

Method used

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  • Method and device for processing video data by using specific border coding
  • Method and device for processing video data by using specific border coding
  • Method and device for processing video data by using specific border coding

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Embodiment Construction

[0052] The invention is based on the knowledge that the structure of the center of a PDP differs from the structure of its border regions. In detail, plasma panels are made with two glass plates (front and back) sealed together and having electrodes on top of them (horizontal transparent electrodes on the front plate, vertical metal electrodes on the rear plate). The individual plasma cells (red, green, blue dots) are delimited by so-called barrier ribs of a certain height. This height also generally defines the distance between the two plates. The basic concept in Figure 6 shown in the PDP seal. There is a height difference between seals and ribs arranged at the boundaries of the plasma panel. In fact, in order to have a perfect seal, the gasket needs to be higher than the ribs. On the other hand, the accuracy of this height is currently not very high, and also depends on the sealing process. In fact, the gasket will be melted during this process. The results of the se...

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PUM

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Abstract

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 subfields 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 (2) and codewords being not used are recreated by dithering (6).

Description

technical field [0001] The present invention relates to a method by providing video data having a video level selected from a predetermined number of video levels, encoding said predetermined number of video levels with a corresponding number of codewords, and The codeword illuminates pixels in the central area of ​​the display screen to process video data to be displayed on the display screen. [0002] In addition, the invention relates to a corresponding device for processing video data. Background technique [0003] For the previous generation of CRT monitors, a lot of work was done to improve the picture quality. Therefore, new technologies such as plasmas must provide image quality that is at least as good as, or better than, standard CRT technology. For consumers of televisions, high contrast is a major factor in the high subjective picture quality of a given display. Dark room contrast is defined as the ratio between the screen's maximum brightness (peak white) and...

Claims

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Application Information

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IPC IPC(8): G09G3/28G06F3/147G09G3/20
CPCG09G3/2029G09G2310/0232G09G3/2803G09G2320/0238G09G3/2051G09G3/28G09G2360/16G09G3/2925G09G3/2946G09G2320/0209G09G3/291G09G3/296G09G5/02
Inventor 卡洛斯·科雷亚塞巴斯蒂安·韦特布鲁赫锡德里克·西鲍尔特
Owner THOMSON LICENSING SA