Region-division-based video de-interlacing method and system

A technology for area division and de-interlacing, applied in the field of video processing, to avoid excessive consumption of computing resources, improve subjective experience, and improve quality

Inactive Publication Date: 2011-11-23
POWERINFO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of the above-mentioned defects in the prior art, the present invention provides a method and system for video deinterlacing based on region division, which utilizes the law that different regions of the video image have different motion characteristics, and executes different deinterlacing algorithms in different regions, which can Avoid the problem that a single algorithm has its own advantages and disadvantages in processing different areas of the image, and also avoid the problems that algorithms such as motion adaptive and motion compensation consume too much computing resources and the judgment of image sub-region types may not be all accurate

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[0023] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with specific embodiments and accompanying drawings.

[0024] figure 1 It is a flowchart of a video deinterlacing method according to an embodiment of the present invention. The present invention is a video de-interlacing method based on region division, such as figure 1 As shown, the method includes: S100 segmentation step, dividing the video picture in the video sequence without de-interlacing processing into several regions; S200 de-interlacing step, applying a specific de-interlacing algorithm to different regions respectively de-interlacing processing; and S300 combining step, merging the regions after de-interlacing processing into one frame of video image.

[0025] The segmentation step S100 can be divided manually, through the subjective monitoring of the operator, according to ...

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Abstract

The invention provides a region-division-based video de-interlacing method and a region-division-based video de-interlacing system. In the method and the system, a video image in a video sequence is divided into a plurality of regions, and specific de-interlacing algorithms are used for de-interlacing different regions. Different de-interlacing algorithms are executed regionally by utilizing the rule that the different regions of the video image have different motion characteristics, thereby effectively improving video de-interlacing quality and subjective experiences and simultaneously solving the problem that excessive computational resources are consumed and not all the types of sub-regions of the image can be judged accurately by an adaptive algorithm; and the method and the system are more applicable to de-interlacing operations on actual complex video images.

Description

technical field [0001] The present invention relates to the field of video processing, and more specifically, to a video deinterlacing method and system based on region division. Background technique [0002] A video is composed of a series of continuous images, each of which is called a frame, and the number of images contained in a video per second is called a frame rate (fps). There are two ways to display video on a display device: [0003] Progressive scan: or progressive scan. That is to say, each frame of image displays all the pixels one by one from left to right and from top to bottom. [0004] Interlaced scanning: or interlaced scanning. That is, the odd-numbered row pixels and the even-numbered row pixels of a frame of image are divided into two fields. The field composed of odd-numbered lines and the field composed of even-numbered lines are scanned alternately. [0005] Because a field has only half of the information of a frame, when the processing speed o...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/01
Inventor 李毅要文涛罗翰
Owner POWERINFO
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