Video image enhancement processing method based on background reuse

A technology for enhancing processing and video images, applied in the field of video image enhancement processing based on background multiplexing, which can solve the problems of difficulty in dehazing research, slow running speed, and few researches, and achieve the effect of reducing dehazing time and improving efficiency.

Inactive Publication Date: 2016-05-04
XIAN UNIV OF POSTS & TELECOMM
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Problems solved by technology

Although the history of image defogging technology is only a short period of more than 20 years, it has achieved good results, and new methods are constantly emerging, but there are some limitations and slow running speeds. the disadvantages of
Because the image defogging technology spans multiple disciplines such as physics, atm

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  • Video image enhancement processing method based on background reuse
  • Video image enhancement processing method based on background reuse
  • Video image enhancement processing method based on background reuse

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Embodiment Construction

[0032] see figure 1 : the present invention proposes a kind of video image enhancement processing method based on background multiplexing, comprising the following steps:

[0033] 1) Read in the video data and perform preprocessing operations such as denoising;

[0034] 2) Then utilize the inter-frame difference algorithm to separate the background and the foreground, and extract the background area and moving target; the inter-frame difference algorithm is specifically carried out in accordance with the following steps:

[0035] (1) Input the video to be processed, and calculate the number of video frames;

[0036] (2) Change the color video image sequence into a grayscale image;

[0037] (3) The difference between the two frames before and after the grayscaled image is made, and the result of the difference is binarized;

[0038] (4) The binarization result is compared with the threshold value, and the moving target is marked;

[0039] (5) Restore the color image.

[00...

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Abstract

The invention proposes a video image enhancement processing method based on background reuse. A conclusion that a common background has invariance property in a video recorded by a fixed camera is made through observation and comparison. The method carries out the background reuse according to the invariance property. The method comprises the steps: firstly recognizing a moving object in the video through employing an inter-frame difference algorithm, finding the minimum and maximum coordinates of the moving object through the continuous comparison with a threshold value, and marking the rectangular frame of the moving object; secondly carrying out the background extraction and refreshing through employing a simplified continuous frame difference method; thirdly respectively carrying out the defogging of the moving object and the background through employing a dark primary color prior method, carrying out the frame-by-frame defogging of the moving object, carrying out the timing processing of the background, combining the background with the moving object after defogging, and completing the defogging of the video. The method advantageous in that the method can greatly improve the operating speed in the video with the fixed background, and achieves the high-quality video defogging effect.

Description

technical field [0001] The invention belongs to the technical field of image processing, and relates to an image enhancement processing method, in particular to a video image enhancement processing method based on background multiplexing. Background technique [0002] Video images have become the main way and means of obtaining information today, and it is also the most intuitive, objective and effective way to understand things. There are many ways to obtain video images, such as cameras, video cameras, surveillance cameras, mobile phones and other photographic equipment. There are also various software for making video images, such as VideoStudio, Digital Master, Effects, etc. The quality of the video image directly determines the subsequent discrimination, analysis, recognition, calculation, etc., so before the discrimination, analysis and calculation of the video image, it is necessary to process the video image directly captured by the camera equipment to improve the qu...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T7/00G06T7/20
CPCG06T5/003G06T5/002G06T7/20G06T2207/10016
Inventor 王殿伟郭华
Owner XIAN UNIV OF POSTS & TELECOMM
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