Intelligent mobile terminal anti-noise interference moving target extraction method

An intelligent mobile terminal, moving target technology, applied in image data processing, instruments, calculations, etc., can solve the problems of lens shake, false detection, moving target extraction interference, etc., to achieve the effect of eliminating interference

Active Publication Date: 2018-05-18
湖州菱创科技有限公司
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Problems solved by technology

[0004] However, in the case of a fixed camera, the existing methods all assume that the acquisition of video data works on the premise that the camera is fixed. , to extract the area containing the moving target in the video, it is prone to lens shake, these existing methods will be useless, resulting in the interference of the shaken lens to the extraction of the moving target, and a large area of ​​false detection will inevitably occur

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  • Intelligent mobile terminal anti-noise interference moving target extraction method
  • Intelligent mobile terminal anti-noise interference moving target extraction method
  • Intelligent mobile terminal anti-noise interference moving target extraction method

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Embodiment Construction

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0037] Such as figure 1 As shown, in order to use the intelligent mobile terminal to extract the moving target in the image sequence, the intelligent mobile terminal anti-noise interference moving target extraction method provided in this embodiment includes the following steps in sequence:

[0038] Step 1. Perform grayscale processing on the original image S(i,j) acquired by the smart mobile terminal to realize color space conversion and obtain a grayscale image Y(i,j); where the original image S(i,j) is transformed into The following conversion formula is used for the grayscale image Y(i,j):

[0039] Y(i,j)=0.257×r(i,j)+0.504×g(i,j)+0.239×b(i,j);

[0040] Among them, r(i,j), g(i,j), b(i,j) respectively correspond to the red, green and blue color components in the three-dimensional coordinates of the color space of the original image S(i,j)...

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Abstract

The invention relates to an intelligent mobile terminal anti-noise interference motion target extraction method. Through setting optimized conversion parameters for image space conversion, after an original image is converted and processed to obtain a grayscale image, Gaussian filtering is selected to filter a pre-processing image, three continuous pre-processing images with the same frame interval are selected for difference processing, defects of quality of the motion target extracted by using a three-frame difference method individually are overcome; after binary processing is carried out on the difference image, logic "or" and logic "and" processing are carried out on the binary image, the binary image in a hidden motion target area is obtained, the logic "or" is used for automatically abandoning newly-exposed pixel points, and a "ghost phenomenon" can be eliminated; a background model is built and updated in real time, and based on a Gaussian model, the motion target in the hidden motion target area is detected, an easily-introduced "void" problem based on the inter-frame difference method can be avoided; and finally, based on a 95% confidence interval theory, motion foreground is extracted to obtain the motion target.

Description

technical field [0001] The invention relates to the field of intelligent video processing, in particular to an intelligent mobile terminal anti-noise interference moving target extraction method. Background technique [0002] In recent years, various cameras have been installed in different public places, such as highways, ATMs, street corners, large shopping malls, hospitals, schools, airports, etc., and even installed in homes to realize video surveillance. Purpose. Traditional video surveillance relies on artificially analyzing and judging the video data subjectively, understanding the actions and behaviors in it, and then drawing conclusions and giving feedback. There are also many defects in traditional video surveillance, especially if the monitoring personnel miss important information, it may cause irreversible consequences. Therefore, intelligent video processing technology is particularly important and has become one of the current research hotspots. [0003] Vi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/20G06T7/40G06T5/10
CPCG06T5/10G06T2207/10016G06T2207/20104G06T2207/30232
Inventor 郑紫微程劼熊欧
Owner 湖州菱创科技有限公司
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