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Video frame rate promoting method

A video frame rate, video technology, applied in the field of video data processing, can solve problems such as adaptive block splitting

Inactive Publication Date: 2013-06-12
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0007] Aiming at the defects of the prior art, the object of the present invention is to provide a method for increasing the video frame rate, aiming at solving the problems existing in the existing video frame rate improving method in terms of preprocessing, bilinear interpolation optimization, and adaptive block splitting

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Embodiment Construction

[0080] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0081] Such as figure 1 Shown, the video frame rate promotion method of the present invention comprises the following steps:

[0082] (1) read in the video; in the present embodiment, the file name of the video is football, and the format is the Yuv format. For other video files such as Rmvb, Avi, Mp4, etc., first convert it to the Yuv format and then follow-up deal with;

[0083] (2) Set the counter i=1, and use the following formula to calculate the i-th frame of the video as the gradient value of all pixels in the current frame and the next frame of the current frame,

[0084] ...

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Abstract

The invention discloses a video frame rate promoting method, which comprises the following steps: reading in a video; setting a counter i=1; calculating gradient values of all pixel points in a ith frame as the current frame and the next frame of the current frame of the video; taking gradient values of the pixel points in the ith frame and the i+1th frame as pixel values; reconstructing a pixel point set of the ith frame and the i+1th frame to form the reconstructed ith frame and i+1 frame; carrying out bidirectional layering motion estimation on the reconstructed ith frame and i+1 frame based on forecast, so as to obtain a forward motion vector field and a backward motion vector field; calculating the motion vector of each pixel in the ith frame and the i+1 frame by adopting bilinear interpolation according to the forward motion vector field and the backward motion vector field; and carrying out occlusion judgment on the pixels in the ith frame. Compared with the existing video frame rate promoting method, the video frame rate promoting method disclosed by the invention has the advantages that the influence of the quality of the video on motion estimation accuracy is reduced, the problem brought by over-large scale partitioning is solved, and the result of the bilinear interpolation is more accurate.

Description

technical field [0001] The invention belongs to the field of video data processing, and more specifically relates to a method for increasing a video frame rate. Background technique [0002] The video frame rate improvement method refers to the use of motion estimation and interpolation methods to calculate the intermediate frame and insert the original video image sequence through the data of two adjacent frames of the video, so as to improve the entire video frame rate. [0003] The traditional video frame rate improvement method is based on a block-layered two-way motion compensation frame interpolation algorithm, which has the following problems: [0004] 1. The quality of the video itself has a great influence on the accuracy of motion estimation. [0005] 2. Once the block size is fixed, there will be phenomena such as the same block containing objects with different motion conditions, which will affect the effect of the entire algorithm. [0006] 3. The bilinear int...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N7/36H04N19/513H04N19/59
Inventor 谢玖实谭毅华李彦胜田金文
Owner HUAZHONG UNIV OF SCI & TECH
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