Evaluation device and method for testing three-dimensional morphology precision of pavement by binocular reconstruction technology

Abstract

The invention discloses an evaluation device for testing the three-dimensional morphology precision of a pavement by binocular reconstruction technology. The evaluation device comprises a laser positioning system, a point position testing system and a fixed base. The invention further discloses an evaluation method for testing the three-dimensional morphology precision of the pavement by the binocular reconstruction technology. The evaluation method comprises the following steps that a to-be-tested part is fixed; three-dimensional morphology data of the to-be-tested part is acquired through the binocular reconstruction technology; a plurality of points to be measured are specified on the surface of the to-be-tested part; first elevation data of the multiple points to be tested is acquiredthrough the binocular reconstruction technology; second elevation data of the multiple points to be tested is acquired through an elevation tester; and the average absolute deviation, the maximum absolute deviation, the average relative deviation, the maximum relative deviation and the large deviation percentage of the first elevation data and the second elevation data are calculated, and the testing precision of the binocular reconstitution technology is evaluated in obtaining the three-dimensional morphology of the pavement. The method has the advantages that under the premise of lack of high-precision equipment, the objective of real evaluation of the test precision can be realized fast by using low cost.

Description

technical field [0001] The invention relates to the technical field of road engineering detection, in particular to an evaluation device and method for testing accuracy when using binocular reconstruction technology to test the three-dimensional shape of the road surface. Background technique [0002] Good anti-skid performance is an important guarantee for driving safety, and surface topography is a key factor affecting anti-skid performance. In view of the characteristics of strong anti-light interference, fast, comprehensive and high resolution, binocular reconstruction technology has gradually attracted the attention of road workers and applied it to the three-dimensional shape measurement of road surfaces. However, how to evaluate the test accuracy of the binocular reconstruction technology for the three-dimensional shape of the road surface has become a difficult problem. Specifically: (1) The high-precision, high-resolution three-dimensional shape testing device is c...

AI Technical Summary

Problems solved by technology

However, this evaluation method weakens the noise component in the test results. What is evaluated is not the real test accuracy of the binocular reconstruction technology, but the global accuracy after deducting part of the noise, which weakens the influence of local noise and virtually falsely Improved test accuracy

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