Tong-xue ZHOU, Ming ZHU. Moving target detection of the video images[J]. Chinese journal of liquid crystals and displays, 2017, 32(1): 40-47.
DOI:
Tong-xue ZHOU, Ming ZHU. Moving target detection of the video images[J]. Chinese journal of liquid crystals and displays, 2017, 32(1): 40-47. DOI: 10.3788/YJYXS20173201.0040.
Moving target detection technology refers to extracting the change from the video images
and it is widely used in the field of military security
traffic management
video surveillance
medical examination and so on. In order to improve the shortcomings of three-frame-difference method and background subtraction
this paper presents a new moving object detection algorithm based on edge information of the three-frame-difference method combined with the background subtraction. Firstly
the current frame subtracts the previous frame and the next frame separately
the next frame subtracts the previous frame
their results are added together to get a gray-scale image.The result is divided by three. Secondly
the gray-scale image is translated into binary image after being judged by threshold. And then it will be dealt with a series of morphological processing.Thirdly
the Canny edge detection operator is introduced into the middle frame
then the two results "and" operation to get the edge of the moving object.Finally
the current frame image subtracts the background image to get another gray-scale image
in the same way
it is translated into binary image after being judged by threshold. Then the final two results "or" operation. The moving object is got by doing a series of morphological processing. The experimental results show that
target detection rate by using the method increased by 9.7%~72.1%
and the error detection rate is reduced by 0.090%~2.900%. The combination of the two compared with the single detection algorithm can effectively and reliably detect the moving targets.
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references
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