Inversion detection method and device for filtering distributed underground building background heat flux

Abstract

The invention provides an inversion detection method and device for filtering distributed underground building geological background heat flux, and belongs to the field of crossing of geophysics subject theory and remote sensing technology. The method comprises the following steps: filtering mountain surface solar radiation total energy and mountain surface vegetation thermal radiation energy from an infrared remote sensing image of a mountain corresponding to an underground building; in combination with DEM data, mountain geological background heat flux is filtered out in a layered mode in the infrared image, and a distributed underground building disturbance signal image is obtained; after noise point interference of the disturbance signal image is eliminated through an expansion corrosion method, the disturbance signal image is segmented into a plurality of area images through a connected domain segmentation method; according to the continuity of heat transfer in time and space, eliminating regional images without underground buildings, and obtaining position information containing the underground buildings; performing inversion positioning on the disturbance signal containing the underground building, and determining burial depth information of the underground building; according to the invention, inversion detection positioning of the distributed underground building is realized.

Description

technical field [0001] The invention belongs to the intersecting field of geophysics subject theory and remote sensing technology, and more specifically relates to an inversion detection method and device for filtering out geological background heat flux of distributed underground buildings. Background technique [0002] As the process of urbanization continues to accelerate, more and more people are pouring into the city, and the urban land is becoming more and more tense, which makes more buildings have to be built underground, such as: underground parking lots, underground warehouses, and underground restaurants. etc.; many buildings are built underground for safety reasons, such as: large underground oil depots, military facilities, etc. These are typical examples of distributed underground buildings. Once these distributed underground buildings fail, it is very difficult to investigate the location of the fault. The detection of underground structures is of great signi...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects of the prior art, the purpose of the present invention is to provide an inversion detection method and device for filtering out the geological background heat flux of distributed underground buildings, aiming at solving the problems of existing distributed underground buildings passing through strata in infrared images. After conduction modulation, the signal becomes weaker, and the detection and positioning cannot be effectively reversed

Images