A Monitoring Method of Asphalt Pavement Aging Condition Based on Remote Sensing Image

Abstract

The invention discloses a method for monitoring ageing conditions of asphalt pavements based on remote sensing images. Multispectral satellite remote sensing images are subjected to inversion based on a multiple endmember spectral mixture analysis model and are extracted to obtain an asphalt abundance distribution diagram of the asphalt pavements with the different ageing conditions, so as to obtain monitoring information of the ageing of the asphalt pavements. The method comprises the following steps: selecting the multispectral satellite remote sensing images containing asphalt ageing characteristic spectrum wavebands and classifying endmembers in the remote sensing images; establishing an initial endmember spectrum database, optimizing an endmember spectrum of each surface feature class, and running a multiple endmember linear spectral mixture analysis model to obtain a pixel abundance value of each type of endmember. The method disclosed by the invention can be used for rapidly and conveniently extracting asphalt pavement ageing information and estimating healthy conditions of the pavements, can be used for effectively improving the precision and applicability of the monitoring of the ageing conditions of the asphalt pavements, and can be applied to maintenance survey and planning of the pavements of expressways or other grades of roads.

Description

technical field [0001] The invention relates to road surface detection technology, in particular to a method for monitoring and evaluating the aging condition of asphalt pavement based on remote sensing image technology. Background technique [0002] As a modern transportation channel, highway is playing an increasingly important role in today's social economy, and plays a positive role in promoting logistics, resource development, investment attraction, industrial structure adjustment, and horizontal economic integration along the line. Among them, asphalt roads are widely used because of their advantages of high comfort, high durability, low construction cost, and reusability, especially on expressway roads, which are mostly made of asphalt. However, in the actual operation process, factors such as temperature, moisture, weathering and load will have adverse effects on the entire pavement structure and road surface, causing various road diseases, such as cracks, cracks, ru...

AI Technical Summary

Problems solved by technology

The method of the present invention proves through the accuracy evaluation that it can be used to effectively solve the problem of mixed pixels on the road surface

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