Shaking preventing method for video image in video surveillance

A video image and video surveillance technology, applied in image communication, components of color TVs, components of TV systems, etc., can solve problems such as poor environmental adaptability and large amount of calculation, achieve fast processing and meet real-time requirements , the effect of a small amount of calculation

Inactive Publication Date: 2014-10-01
STATE GRID CORP OF CHINA +2
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This kind of method based on feature points can also achieve high registration accuracy when the deformation be...

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  • Shaking preventing method for video image in video surveillance
  • Shaking preventing method for video image in video surveillance
  • Shaking preventing method for video image in video surveillance

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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention cannot be limited by this.

[0028] please see figure 1 , figure 1 It is an operation flow chart of an anti-shake method for video images in video surveillance according to the present invention. As can be seen from the figure, under the assumption that the video image in video surveillance has only translational motion and slight deformation, the anti-shake method adopted by the present invention for video image shaking specifically includes:

[0029] The first step is to perform background modeling on the video image sequence captured by the camera, obtain the background image of the surveillance scene, and use the obtained background image as a reference image. figure 2 Flowchart for th...

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Abstract

The invention relates to a shaking preventing method for a video image in video surveillance. The method comprises the steps that background modeling is carried out on a video image sequence, and a background image of a monitored scene is obtained and serves as a reference image; the reference image is segmented, the textual features of all image blocks are calculated, and the image block with the abundant textural features is selected as a reference image block; a matching area of the reference image block is found out in a current image, and the displacement, relative to the reference image, of the current image is estimated according to the displacement, relative to the reference image block, of multiple matching areas; the current video image is corrected according to the relative displacement of the image. The shaking preventing method for the video image in the video surveillance has the advantages of being fast and convenient to conduct, safe, reliable and high in precision.

Description

technical field [0001] The invention relates to video monitoring and image processing, in particular to an anti-shaking method for video images in video monitoring. Background technique [0002] In video surveillance, especially real-time monitoring of power lines, due to the high position of the camera, the camera will shake up and down, left and right in windy weather or due to ground vibrations, which will cause the output video image to shake and affect the picture quality. Therefore, it is necessary to Take technical means to stabilize the image and eliminate video shaking to improve the monitoring quality. [0003] The basic method of video anti-shake is image registration, which is to calculate the geometric transformation (such as affine transformation) between two images based on the similarity of image features, and based on this, the mapping relationship between pixels between images is established. The current popular image registration technology is based on im...

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Application Information

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IPC IPC(8): H04N5/14H04N5/21H04N7/18
Inventor 曾建平梁育彬王国元裴长生张勇肖恺张益民赵浩
Owner STATE GRID CORP OF CHINA
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