De-interlacing method based on scene segmentation and content feature detection

A content feature and de-interlacing technology, applied in the field of video processing, can solve the problems of high performance, high precision and low cost, and achieve the effect of overcoming edge jaggedness, avoiding redundant computation and accurate interpolation

Inactive Publication Date: 2019-09-20
HOHAI UNIV +1
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Problems solved by technology

Many algorithms have improved de-interlacing performance from different angles, but it is difficult to achieve an ideal balance between high performance, high precision and low cost

Method used

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  • De-interlacing method based on scene segmentation and content feature detection
  • De-interlacing method based on scene segmentation and content feature detection
  • De-interlacing method based on scene segmentation and content feature detection

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] The present invention proposes a kind of video deinterlacing processing method, comprises the following steps:

[0033] Input the interlaced video, judge whether the current scene has a scene shear according to the scene shear detection algorithm, on this basis, use the existing calculation resources of Absolute Image Block Differences (AIBD), increase Local area type judgment of each image block.

[0034]

[0035] where F n (i, j) is the value of a pixel in the current block, F n±1 (i±1, j) is the pixel value of the corresponding position in the front and rear fields, M, N, i, j, n are the motion estimation block height, motion estimation block width, relative vertical coordinate, relative horizontal coordinate and field image number respectively.

[0036]After obtaining the detection result of the scene cut, if the current field produces a continuous sce...

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Abstract

The invention discloses a de-interlacing method based on scene segmentation and content feature detection, and the method comprises the steps: carrying out the local region feature detection of video content through employing the calculation resources of scene segmentation detection, and dividing each image block in a current field into a common motion region, a complex motion region, and a static region; AND then integrating video content feature judgment results of the whole and local regions, and adopting different motion compensation interpolations for the regions of the type. According to the method, unnecessary motion estimation and motion state analysis processes can be reduced, so that the complexity of the whole de-interlacing algorithm is reduced.

Description

technical field [0001] The invention belongs to the technical field of video processing, in particular to a de-interlacing method based on scene change and content feature detection. Background technique [0002] Restricted by frequency band resources and refresh frequency, the early analog TV broadcasting system adopted interlaced scan format for transmission and display. This interlaced scanning method can not only effectively reduce the bandwidth occupation, but also eliminate flickering in large areas caused by insufficient video frame rate when playing video images. With the development of modern technology, people pursue higher-quality visual enjoyment, which leads to the increasingly important status of de-interlacing in the field of video processing. Although many post-processing software have built-in deinterlacing processing functions, their algorithms are extremely simple, and often fail to meet people's expected visual requirements. In contrast, although some d...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/01H04N5/14
CPCH04N5/147H04N7/012
Inventor 黄倩黄媛毛莺池王柚文丁瑄
Owner HOHAI UNIV
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