基于红外结构光测量数据的道路平整度评价

Evaluation of Road Smoothness Based on Infrared Structured Light Measurement Data

道路平整度数据的采集及评价是道路管理中的重要内容。然而,采用目前最先进的激光平整度仪进行采集,会面临采集车速限制和加减速段距离限制,且无法全面采集道路三维表面。因此,基于红外结构光双目立体相机的采集作为替代方式,具有应用的潜力。研究对该方式的搭建及系统性能进行了描述,然后提出了基于该方式采集数据的三维平整度评价指标,以克服传统平整度评价指标仅考虑二维纵断面,不能全面和准确评价的问题。

Collecting and evaluating road roughness data are key components of road management.Nevertheless,as the most advanced technology for collecting road roughness data,the laser profiler suffers from limitations of collection speed as well as accelerating/decelerating part length,hence unable to fully acquire the road surface characteristics.As an alternative,the infrared structured light binocular stereo camera provides a potential application prospect.This paper describes the building and performances of this method and proposes a three-dimensional road roughness evaluation index based on the corresponding data.This index can overcome the shortcoming of the two-dimensional index and accurately evaluate three-dimensional road surface roughness.