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Deinterlacing method based on edge self adaption

An adaptive and de-interlacing technology, applied in the field of image processing, can solve the problems of increasing and reducing the amount of calculation, and achieve the effect of reducing the amount of calculation, reducing the amount of calculation, and ensuring the accuracy of interpolation

Active Publication Date: 2013-12-25
HISENSE VISUAL TECH CO LTD
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Problems solved by technology

[0009] The embodiment of the present application provides an edge-adaptive-based de-interlacing method, which solves the problem of increasing the amount of calculation in the prior art to ensure the accuracy of interpolation, realizes low-angle, multi-directional detection of edge directions, and achieves guaranteed interpolation The technical effect of reducing the amount of calculation while maintaining accuracy

Method used

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  • Deinterlacing method based on edge self adaption

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Embodiment 1

[0056] An edge-adaptive de-interlacing method provided by the present invention is as follows: image 3 shown, including the following steps:

[0057] Step S102, receiving the pixel located at the pixel to be interpolated The brightness values ​​of the first group of pixels in the previous row and the second group of pixels in the next row;

[0058] Step S104, determining the edgeness of the first group of pixels and the second group of pixels according to the brightness value;

[0059] In this embodiment, first determine a search range ; It refers to the number of pixels to be searched to the left and right with the pixel to be interpolated as the center; that is, the first group of pixels and the second group of pixels must contain at least the number of pixels to be searched for indivual.

[0060] positive horizontal edge negative horizontal edge positive vertical edge negative vertical edge no edge 0100 1100 0001 0011 0000

[0061] U...

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Abstract

The invention discloses a deinterlacing method based on edge self adaption. The method solves a problem, which exist in the prior art, that calculation amount is increased to ensure accuracy of edge directions so that technical effects that not only accuracy of edge directions and an interpolation result are ensured but also the calculation amount is reduced are realized. The method includes: receiving brightness values of a first group of pixels at a previous line of a pixel to be interpolated and a second group of pixels at a following line of the pixel to be interpolated; determining marginalities of the first group of pixels and the second group of pixels according to the brightness values; determining pixel pairs with the same marginality in the first group of pixels and the second group of pixels; calculating correlation values in directions of the pixel pairs with the same marginality; comparing the correlation values and selecting a pixel pair corresponding to the smallest correlation value as an edge direction; and performing self-adaptive interpolation on the determined edge direction and determining brightness of the pixel to be interpolated.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an image deinterlacing method. [0002] Background technique [0003] In the TV broadcasting system, in order to reduce the transmission bandwidth of the video signal, the interlaced information of the image is usually transmitted, and the interlaced scanning technology is used for display. However, with the promotion of high-definition display, the disadvantages of interlaced scanning are becoming more and more obvious (for example, the problem of flicker between lines caused by interlaced scanning), it is necessary to convert interlaced signals into progressive signals, and use progressive scanning processing technology to improve image quality . [0004] In the prior art, the intra-field interpolation method is often used to realize the processing from the interlaced image signal to the progressive image signal for the entire image or the moving area in the field, that is,...

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Application Information

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IPC IPC(8): H04N7/01H04N5/14
Inventor 赵静
Owner HISENSE VISUAL TECH CO LTD
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