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De-interlacing method with self-adapting motion

A de-interleaving and self-adaptive technology, applied in color TV parts, TV system parts, standard conversion, etc. Simple and Efficient

Active Publication Date: 2012-01-18
BEIJING DAYANG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the motion compensation de-interlacing technology is optimal, as long as a motion model is given, and the motion vector can be accurately calculated; however, the motion compensation de-interlacing technology has a very high design complexity, a very large amount of calculation, and is particularly sensitive to motion vector errors. , poor real-time performance
High-quality deinterleaving technology is generally implemented by hardware in order to improve efficiency, so the cost is relatively high

Method used

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  • De-interlacing method with self-adapting motion
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Experimental program
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Effect test

Embodiment 1

[0032] This embodiment is a motion-adaptive de-interleaving method, and the method includes the following steps:

[0033] The step of judging whether it is an interlaced scanning image: it is used to judge whether the input video image is an interlacing scanning image, if "No", then enter the "step of progressive video image output" to directly output the video image, if "Yes", then enter the next step step;

[0034] The step of judging whether odd frames are generated: it is used to judge whether progressive odd frame video is generated from the currently input interlaced video. Step", if "Yes", go to the next step;

[0035]The step of judging whether to generate odd-numbered lines: used to judge whether the current insertion point is the data of odd-numbered lines in an odd-numbered frame, if "Yes", directly fill in the corresponding pixels of the current odd-numbered field to obtain odd-numbered frame data, if "No", proceed to the next step one step;

[0036] The step of...

Embodiment 2

[0082] This embodiment is an improvement of the first embodiment, which is about refinement of the similarity threshold in the first embodiment. The value period of the similarity threshold in the step of judging whether it is a suspicious static point in this embodiment is 3-9.

[0083] Inequality (1) and (2) among the embodiment one are to carry out threshold value judgment to the corresponding pixel difference between two odd fields, and inequality (4) and (5) are to carry out corresponding pixel difference between two even fields Threshold judgment. The threshold value range of these four inequalities is 3-9, and the effect of 6 points is the best. If the threshold is lower than 3, most of the points in the image will be classified as moving points, so the efficiency of the algorithm will be reduced, and the image definition will decrease and the jaggedness will increase. If the threshold is greater than 9, the moving point in the image will be wrongly classified as a st...

Embodiment 3

[0085] This embodiment is an improvement of the first embodiment, which is related to the refinement of the auxiliary similarity threshold in the first embodiment. The value period of the auxiliary similarity threshold in the step of judging whether it is a suspicious static point in this embodiment is 5-11.

[0086] Inequality (3) among the embodiment one is to carry out threshold value judgment to the corresponding pixel difference between two even fields, and inequality (6) is to carry out threshold value judgment to the corresponding pixel difference between two odd fields, these two inequalities The range of threshold value is 4-12, among which 8 is the best point. If the threshold is lower than 4, the points that have been classified as stationary in the second implementation will be corrected as moving points in one step, so that the efficiency of the algorithm will be reduced, and at the same time, the sharpness of the image will decrease and the jaggedness will increa...

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Abstract

The invention relates to a de-interlacing method with self-adapting motion, which is a method for processing an electronic image. The method comprises the following steps: judging whether an image is an interlaced image or not; judging whether the frames of an odd number are generated or not; judging whether the rows of the odd number are generated or not; judging whether a point is a questionable rest point or not; judging whether the point is a true rest point or not; finally, obtaining a line-by-line video; and outputting a line-by-line video image. The invention divides a current field image into a motion area and a questionable rest area by two similarity degree threshold values, then further divides the questionable rest area into a rest area and a motion area by a third similarity degree threshold value, carries out de-interlacing processing on the rest area by a field reproduction algorithm, carries out de-interlacing processing on the motion area by an ELA algorithm and finally, obtains the line-by-line video.

Description

technical field [0001] The invention relates to a motion adaptive de-interlacing method, which is an electronic image processing method, a video image processing method, and a video image processing method that converts interlaced scanning into progressive scanning. Background technique [0002] There are two scanning methods in the current broadcasting television system: one is progressive scanning (Progressive scanning) and the other is interlaced scanning (Interlaced scanning). Progressive scanning is to scan a complete image within each Δt time, which is called a frame. Interlaced scanning is to divide a frame of image into two fields for 2:1 interlaced scanning. The first field is called an odd field, and only its odd lines are scanned; the second field is called an even field, and only its even lines are scanned. The advantages of progressive scanning are high image definition, fine and rich image details, stability and no flicker between lines, etc.; the disadvantag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/01H04N5/14
Inventor 姚威邓伟王雨曾国卿谷显峰边宏昌
Owner BEIJING DAYANG TECH DEV