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An identification method based on markers

An identification method and marker technology, which are applied in image analysis, image enhancement, instruments, etc., and can solve problems such as various environmental parameter methods, limited scenarios, and video surveillance limitations that have not yet been found.

Active Publication Date: 2019-07-09
ZHEJIANG MIAXIS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the detection, recognition, classification and tracking of moving objects in surveillance videos has become a research hotspot, but video surveillance is limited to limited scenarios, and a method that can adapt to various environmental parameters and has no limited conditions has not been found.

Method used

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  • An identification method based on markers
  • An identification method based on markers
  • An identification method based on markers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Taking a white garage rolling door as an example, the opening and closing state of the rolling door is video monitored through a marker-based identification method of the present invention. definition figure 1 The four black and white concentric rectangles shown are markers. The center of the marker is a white square and the outermost layer is a black rectangle. As shown in 2, select two of the same size markers and paste them on the inside of the rolling door. The camera is set directly opposite the marker and takes an image of the entire rolling door.

[0037] The image taken by the camera is converted into a gray-scale bmp image, and each pixel of the bmp image is scanned line by line to initially detect the center point of the marker. The detection steps include: (3.1) Define the structure array center[(m, n), R i , P i , B i , V i , V 0 ], and initialize the center, where (m, n) is the coordinate of the pixel point, set 6 layers of concentric square windows with the ...

Embodiment 2

[0048] The difference between this embodiment and embodiment 1 is that the definition image 3 The three black and white concentric circles shown are markers. The center and outermost layer of the markers are black circles. Choose 4 of the same size markers and paste them on the inside of the rolling door from top to bottom, with the camera facing right Set with the markers, take an image of the entire rolling door.

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Abstract

The invention provides a marker-based identification method. The method includes the following steps: designing a marker which is a white-and-black concentric rectangular or concentric circle, adhering the marker to a to-be-detected moving object, by identifying the marker, detecting the changes of the position of the marker to determine the moving conditions of an object. The marker of the technical solution has flexible design, is easy to identify and operate, and can be applied to video monitoring of all kinds of moving objects.

Description

[0001] 【Technical Field】 [0002] The invention relates to a video monitoring method, in particular to an identification method based on markers. [0003] 【Background technique】 [0004] Intelligent video surveillance technology is a new type of video surveillance technology based on image processing and pattern recognition. It can automatically detect, identify, track and analyze the target in the video image. Compared with the traditional video surveillance that requires dedicated personnel, the surveillance personnel Freed from the complicated and boring task of "staring at the screen", it not only provides a simple and customizable operating experience, saves human resources, but also ensures that various abnormal situations are accurately and timely detected, which improves the safety of the entire organization Sex. At present, the detection, recognition, classification and tracking of moving targets in surveillance video have become research hotspots, but video surveillance is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/292H04N7/18
CPCG06T2207/10021H04N7/18
Inventor 李健刘中秋何小梅
Owner ZHEJIANG MIAXIS TECH CO LTD