Natural resource real-time video monitoring method and system with vector red line data embedded

A technology of natural resources and real-time video, applied in the field of image processing, can solve problems such as inapplicable PTZ surveillance video, and achieve the effect of improving supervision efficiency

Active Publication Date: 2020-09-18
WUHAN UNIV
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Problems solved by technology

At present, the methods of measuring area from video mainly include: field measurement, estimation method based on calibration template, and calculation based on simple proportional relationship between image pixel coordinates, camera focal length and vertical height, which have certain limitations and are not suitable for PTZ surveillance video with PTZ function

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  • Natural resource real-time video monitoring method and system with vector red line data embedded
  • Natural resource real-time video monitoring method and system with vector red line data embedded
  • Natural resource real-time video monitoring method and system with vector red line data embedded

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Embodiment Construction

[0056] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0057] see figure 1 A method and system for real-time video monitoring of natural resources embedded in vector red line data provided by an embodiment of the present invention includes the following steps:

[0058] (1) Obtain the vector red line data of natural resources and the corresponding high-resolution remote sensing image with the same projected coordinate system in a certain area, and obtain the initial image I of the PTZ camera at the same time 0 ;

[0059] In the specific implementation, it is first necessary to ensure that the vector red line dat...

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Abstract

The invention discloses a natural resource real-time video monitoring method and system with vector red line data embedded, and the method comprises the steps: obtaining the natural resource vector red line data and a corresponding high-resolution remote sensing image, and obtaining an initial image of a camera; superposing the vector red line data onto the high-resolution remote sensing image, identifying homonymous points on the video image and the vector red line data by means of semantic information of the remote sensing image, and calculating a geometric mapping relationship; mapping thevector red line data to a real-time video to obtain a video monitoring area; matching adjacent frame images of a monitoring video to obtain homonymous points by obtaining feature points which are uniformly distributed in scale and space; obtaining a geometric transformation relationship between the images according to the homonymous points, and mapping the monitoring area range on the previous frame of image to the next frame of image to realize association of the monitoring areas between the image frames; and performing area measurement on the monitoring video according to the geometrical relationship, and performing subsequent related target motion analysis on the basis of the determined video area so that automatic area early warning alarm can be realized.

Description

technical field [0001] The invention belongs to the technical field of image processing, and relates to a method and system for real-time video monitoring of natural resources embedded with vector red line data. Background technique [0002] Ecological red line, permanent basic farmland, and urban boundary are the three bottom lines that need to be strictly observed in ecological environment construction. Today, fertile land is damaged, forest resources are deforested, urban development areas are not constructed frequently, and the problem of abuse of national natural resources is becoming more and more prominent. How to use technical means to support accurate, real-time, and rapid implementation of natural resource efficiency Monitoring is an important and urgent matter. [0003] With the rapid development of sensor technology, video compression processing technology, and network communication technology, it has become possible to implement remote video monitoring of these...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18G06K9/00G06K9/46
CPCH04N7/181G06V20/48G06V20/42G06V10/462
Inventor 邵振峰李从敏
Owner WUHAN UNIV
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