Space-time consistency-based stereoscopic video color correction method

A color correction, stereoscopic video technology, applied in stereo systems, image communication, electrical components, etc., to maintain color consistency, eliminate color differences, and enhance video quality

Inactive Publication Date: 2019-04-23
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention can play a very good correction effect on the color difference of the stereoscopic video

Method used

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  • Space-time consistency-based stereoscopic video color correction method
  • Space-time consistency-based stereoscopic video color correction method
  • Space-time consistency-based stereoscopic video color correction method

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0039] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combina...

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Abstract

The invention relates to a space-time consistency-based stereoscopic video color correction method. The method comprises the steps of firstly, selecting out a pair of key frames from a reference videoframe and target video frames every a frames, and selecting k pairs in each time sliding window; secondly, for each pair of the key frames, obtaining an initial color correction result frame of the target video key frames by adopting an image color correction algorithm, and then obtaining a color correction result video frame which is more consistent with the input target video key frames in structure through guided filtering calculation; thirdly, obtaining a color mapping function between the target video key frames and the target video key frames subjected to the color correction through improved histogram matching in the time sliding window; and finally, correcting the a target video frames located in the center of the time sliding window by using the color mapping function to obtain afinal target video frames subjected to the color correction. A good correction effect can be achieved for color difference of stereoscopic videos.

Description

technical field [0001] The invention relates to the fields of image and video processing and computer vision, in particular to a space-time consistent stereoscopic video color correction method. Background technique [0002] Differences in color and brightness in images and videos are often caused by various factors, such as intensity variations, light source location, aperture size differences, shooting angles, shooting time, etc. The color difference between left and right views in stereoscopic display will increase the burden of stereoscopic image fusion, thus causing human visual fatigue. Some color correction algorithms have been proposed to reduce color differences and improve the quality of stereoscopic images or videos. [0003] Based on the number of color mapping functions, color correction algorithms can be classified into global color correction algorithms and local color correction algorithms. However, the global color correction algorithm has a poor correctio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/15H04N13/106
CPCH04N2013/0074H04N2013/0077
Inventor 牛玉贞杨彦柯逍郑晓华
Owner FUZHOU UNIV
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