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De-interlacing method based on local information and device

A technology of local information and de-interlacing, which is applied in the video field to achieve high-efficiency de-interlacing and improve video quality.

Inactive Publication Date: 2016-08-24
LETV CLOUD COMPUTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a de-interlacing method and device based on local information, which is used to solve the defect that the field video in the prior art shows obvious field effects on progressive scanning equipment, and realizes a good video playback. quality of

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  • De-interlacing method based on local information and device
  • De-interlacing method based on local information and device

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Embodiment 1

[0019] figure 1 It is a technical flow chart of Embodiment 1 of the present invention, combined with figure 1 , a deinterlacing method based on local information in an embodiment of the present invention, which is mainly realized by two major steps:

[0020] Step 110: Detect the pixels in the video frame one by one, and judge whether the pixels are field effect points;

[0021] Interlaced (Interlaced) and progressive (Progressive) are both methods of displaying moving images on a display device. The interlaced scanning method is that each frame is divided into two fields and displayed alternately. The progressive scanning method uses all the images in each frame. displayed simultaneously. The scanning method of the usual LCD TV display screen is from left to right and from top to bottom, scanning a fixed number of frames per second.

[0022] Each frame of image is formed by scanning the electron beam sequentially one row after another. This scanning method is called progres...

Embodiment 2

[0046] image 3 It is a schematic diagram of the device structure of Embodiment 2 of the present invention, combined with image 3 , an embodiment of the present invention is a de-interlacing device based on local information, which mainly includes two large modules: a judging module 310 and a de-interlacing module 320 .

[0047] A judging module 310, configured to detect pixels in the video frame one by one, and judge whether the pixels are field effect points;

[0048] The de-interlacing module 320 is configured to perform de-interlacing processing on the pixel when the judging module determines that the pixel is a field effect point.

[0049] Specifically, the judging module 310 is further configured to: obtain the first pixel difference between the pixel point and the pixel point at the same position in the adjacent row and the second pixel difference between the pixel point and the pixel point at the same position in the interlaced row. Pixel difference: judging whether...

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Abstract

The invention provides a de-interlacing method based on local information and a device. Pixels in a video frame are detected one by one. Whether a pixel is a field effect point is determined. If a pixel is determined as a field effect point, the pixel is de-interlaced. The de-interlacing processing speed and the quality of a processed image are improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of video technology, and in particular to a method and device for deinterlacing based on local information. Background technique [0002] The PAL TV standard is 25 frames per second, that is, the video we usually watch changes 25 images per second, and the human eye will not feel the flicker due to the persistence of vision effect. Each frame of image is divided into two fields for scanning. The scanning here means that the electron beam scans from top to bottom along the horizontal direction line by line in the picture tube. The first field scans odd-numbered lines first, and the second field scans even-numbered lines. That is what we often call interlaced scanning, and one frame of image is completed after two fields are scanned. When the field frequency is 50Hz and the frame frequency is 25Hz, the odd field and the even field scan the same frame of image, unless the image is still, the images...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/01
CPCH04N7/012
Inventor 白茂生
Owner LETV CLOUD COMPUTING CO LTD