Dynamic capturing method and device for video key points

A dynamic capture, key point technology, applied in image analysis, image enhancement, instruments, etc., can solve problems such as target occlusion, and achieve the effect of improving quality, efficiently reading and displaying, and reducing the amount of calculation.
CN114463379APending Publication Date: 2022-05-10TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2022-05-10

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Abstract

The invention discloses a dynamic capture method and device for video key points, and the method comprises the steps: carrying out the modeling of a background in a preprocessed image, carrying out the preprocessing of an image without a moving target, obtaining the gray value of the image, carrying out the statistics according to intervals, and obtaining the distribution interval of the gray value of an initial background image; when a moving target appears, obtaining a background difference image through subtraction by using an early-stage background image, distinguishing a moving foreground and a moving background, and realizing image segmentation; based on an image segmentation result, a multi-scale regional convolutional neural network is added in the matching process of the original key points to improve the matching precision of the key points in the previous frame and the next frame of the video; and fitting the motion trails of the key points by using a least square method to realize dynamic capture of the key points in the video. The device comprises a processor and a memory. According to the invention, dynamic prediction of the key point motion trail of the oil pipeline is realized, the motion state of the oil pipeline is fitted, and real-time monitoring of the operation state of the oil pipeline is realized.
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Description

technical field

[0001] The invention relates to the technical field of moving object detection, in particular to a method and device for dynamic capture of video key points based on background difference method and least square method. Background technique

[0002] With the development and progress of the times, especially the advent of the information age, video surveillance has basically been applied in various fields, such as: traffic information monitoring, public safety monitoring, key public place monitoring and security and other fields.

[0003] At present, surveillance cameras are widely used, but most surveillance cameras cannot automatically complete the monitoring work, and only play the role of recording process. Specific monitoring tasks are still done by humans rather than machines. When the video surveillance work is carried out manually, the work pressure is high, and the concentration of the staff and the ability to handle special events are high. Relevan...

Claims

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