A method and system for monitoring and measuring plane deformation based on image recognition

Abstract

The present invention relates to a plane deformation monitoring and measurement method based on image recognition and its system, comprising a fixed rotatable camera, a network transmission module, a power management module, an image storage module, a data storage module and a data display module; Acquisition, obtain multiple images, and then upload; process and calculate the uploaded images; calculate the actual relative position between the target monitoring points on a single image, and calculate the horizontal closure difference and vertical closure difference of a measurement round; adopt Elevation transfer and displacement transfer, combined with closure difference for adjustment, calculate and store the actual relative position between the target monitoring points; repeat the previous steps once; compare the calculation results of the previous two times, and obtain the target monitoring points in the monitoring plane The actual deformation of the monitoring point relative to the starting target. The invention can realize the deformation measurement of one observation point to multiple targets, thereby realizing the low-cost non-contact deformation monitoring of buildings and structures.

Description

technical field [0001] The invention relates to the technical field of engineering deformation monitoring and measurement, in particular to a method and system for monitoring and measuring plane deformation based on image recognition. Background technique [0002] Deformation monitoring of municipal, bridge, water conservancy, civil engineering and other projects is an important content of structural health monitoring and an important indicator for evaluating structural stability. Conventional measurement methods represented by level gauges and total stations etc. These monitoring methods have a large workload and are greatly affected by the operation mode of the instrument. New monitoring methods represented by measuring robots, three-dimensional laser scanning technology, and static leveling are difficult to promote due to factors such as site and installation difficulty, and price. [0003] Visual deformation monitoring and measurement technology integrates photogrammetr...

AI Technical Summary

Problems solved by technology

[0004] However, the existing image processing method adopts a fixed-point orientation method. One device observes one point with a fixed viewing angle, which is inefficient. For large-area and long-distance monitoring and measurement scenarios, many devices are required, which is uneconomical and increases the installation workload.

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