Video de-interlacing method based on edge detection

An edge detection and de-interlacing technology, applied in the field of video processing, can solve the problem of pixel position distortion to be interpolated, and achieve the effects of high parallelization, improved viewing quality, and high video quality.

Active Publication Date: 2015-04-15
四川雷鸣天健新能源科技有限公司
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Problems solved by technology

[0006] The purpose of the present invention is to propose a video de-interlacing method based on edge detection in order to solve the technical problem of distortion of the traditional video de-interlacing method when processing pixel positions to be interpolated with different edge directions and edge intensities in the video

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  • Video de-interlacing method based on edge detection
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  • Video de-interlacing method based on edge detection

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Embodiment 1

[0044] The video deinterlacing method based on edge detection of the present invention adopts the following steps to realize:

[0045] Step S100, parameter initialization: set thresholds T1=10, T2=30, and set T_1=T_1_pre=T1, D_cnt1=0, D_cnt2=0.

[0046] Step S200, read a field of video from the video data buffer as the current field F i , and judge the current field F i parity. If F i If it is an odd field, then continue to read the current field F i previous F i-1 and the next F i+1 After that, go to step S300; if F i is an even field, the F i The information is directly saved to the even field position corresponding to the area to be output, and returns to step S200;

[0047] Step S300, read in the current field F in sequence i Calculate the coordinate position of each pixel to be interpolated for the unprocessed row of data; and according to the coordinate position of each pixel to be interpolated, based on figure 1 The edge pixel template shown and figure 2 The...

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Abstract

The invention discloses a video de-interlacing method based on edge detection and belongs to the technical field of video image processing. The method includes: based on pixels to be interpolated in a lost field being in multiple edge detection in front and rear fields, selecting different candidate pixels for interpolation restoration in terms of oblique pixels and vertical pixels in the lost field. In addition, according to parameter results of positions of the processed pixels, counting change ratio of parameters, and performing dynamic self-adaptive updating to following related parameters. The defect that unnecessary interpolation bright spots appear in an image due to inaccurate edge detection is overcome. The video de-interlacing method based on edge detection is used for an actual video system related to digital video de-interlacing and is simple in calculation and high in parallelization, and videos processed by the method are high in image quality.

Description

technical field [0001] The invention belongs to the technical field of video processing, in particular to a video deinterlacing method based on edge detection. Background technique [0002] Due to the lack of information in interlaced video, problems such as flickering between lines, jaggedness, crawling, and feathering often occur in the image during actual playback, resulting in a decline in perception. The basic function of video deinterlacing processing is to convert interlaced image signals into progressive image signals through digital processing methods, eliminate or reduce scanning lines, flickering between lines, jagged and other phenomena in interlaced video, and improve the viewing quality of video images. [0003] The key step of the video deinterlacing method is to interpolate and restore the pixels of the lost lines in a field, which is further divided into intra-field interpolation and inter-field interpolation. [0004] The intra-frame line averaging method ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/01H04N5/14
Inventor 王正宁刘光辉王忠荣吴庆波曾辽原李宏亮
Owner 四川雷鸣天健新能源科技有限公司
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