Feature recognition method and device of asphalt road pavement micro-topography based on micro-vision

Abstract

The invention particularly relates to a feature recognition method and device of asphalt road pavement micro-topography based on micro-vision. The technical scheme of the feature recognition method and device of the asphalt road pavement micro-topography based on the micro-vision consists of the feature recognition device of the asphalt road pavement micro-topography based on the micro-vision and the recognition method of the asphalt road pavement micro-topography based on the micro-vision. The structure of the feature recognition device of the asphalt road pavement micro-topography based on the micro-vision is that a micro-amplification lens (2) is perpendicularly arranged at the left end of an upper support of a support (6), and the tail portion of the micro-amplification lens (2) is connected with a CCD (Charge Coupled Device) camera (1); and an automatic object stage (5) is arranged right below the micro-amplification lens (2), a linear array laser (3) is arranged on an oblique support, the point of intersection of the center line of the installed linear array laser (3) and the center line of the micro-amplification lens (2) is located at a position 2 cm above the automatic object stage (5). Feature recognition software of the asphalt road pavement micro-topography is arranged in a computer (8). The feature recognition method and device of the asphalt road pavement micro-topography based on the micro-vision has the advantages of automation, high accuracy and three-dimensional visualization.

Description

technical field [0001] The invention belongs to the technical field of asphalt pavement detection. In particular, it relates to a method and device for recognizing microscopic topography features of asphalt pavement based on microscopic vision. Background technique [0002] The development of highway construction in China started late, but developed rapidly. By the end of 2006, the national expressway mileage reached 45,000 kilometers, ranking second in the world after the United States. The benefits of expressway network are becoming more and more obvious. The main national highway mainly composed of expressways will form an overall layout of "five verticals and seven horizontals". Comprehensive transportation efficiency, most of which are asphalt roads. [0003] At the same time, the construction of expressways and the general improvement of road grades have brought about the characteristics of long mileage, fast speed and large traffic in my country's road transportatio...

AI Technical Summary

Problems solved by technology

However, due to the influence of CCD camera resolution and magnification, it is difficult to obtain research images with high magnification and detailed microscopic topographical features. The details and subtle features of the topography do not reflect the true and comprehensive microscopic topographical features

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