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基于数字图像技术的沥青路表面三维构造获取系统

刘亚敏,  韩森,  徐鸥明

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文章导航 > 西南交通大学学报  > 2014 >  27(2): 351-357.
刘亚敏, 韩森, 徐鸥明. 基于数字图像技术的沥青路表面三维构造获取系统[J]. 西南交通大学学报, 2014, 27(2): 351-357. doi: 10.3969/j.issn.0258-2724.2014.02.025
引用本文: 刘亚敏, 韩森, 徐鸥明. 基于数字图像技术的沥青路表面三维构造获取系统[J]. 西南交通大学学报, 2014, 27(2): 351-357. doi: 10.3969/j.issn.0258-2724.2014.02.025
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LIU Yamin, HAN Sen, XU Ouming. Acquisition System for Three-Dimensional Surface Texture of Asphalt Pavement Based on Digital Image Processing[J]. Journal of Southwest Jiaotong University, 2014, 27(2): 351-357. doi: 10.3969/j.issn.0258-2724.2014.02.025
Citation: LIU Yamin, HAN Sen, XU Ouming. Acquisition System for Three-Dimensional Surface Texture of Asphalt Pavement Based on Digital Image Processing[J]. Journal of Southwest Jiaotong University, 2014, 27(2): 351-357. doi: 10.3969/j.issn.0258-2724.2014.02.025
shu

基于数字图像技术的沥青路表面三维构造获取系统

doi: 10.3969/j.issn.0258-2724.2014.02.025
基金项目: 

陕西省交通建设科技项目（KY08-01）

中央高校基本科研业务费专项资金资助项目（2013G1211007）

详细信息
    作者简介:

    刘亚敏（1981-），女，讲师，博士，研究方向为路面工程，E-mail：liouyamin1234@163.com

Acquisition System for Three-Dimensional Surface Texture of Asphalt Pavement Based on Digital Image Processing

    摘要
  • 摘要: 为了客观、真实地评价沥青路表面三维构造，利用数字图像技术研制了一种沥青路表面三维构造获取系统.首先基于经典的漫反射模型the Lambertian Model，获取3张红、蓝、绿二维图像；然后根据光度立体法，利用3张图像的反射光强度计算其x、y方向上的梯度数据；最后借助Frankot-Chellappa全局积分算法将梯度数据进行傅立叶变换，计算得到高度值，实现路表面构造的三维重建.研究结果表明，该系统获取的高度值精度达到0.000 1 mm，满足分析构造深度的要求；与传统方法铺砂法的测试结果相关系数R=0.887 5，相关性较好，证明了该系统应用的可行性.

     

    Abstract: In order to make an objective and true evaluation on three-dimension surface texture of asphalt pavement, an acquisition system for surface three-dimensional texture of asphalt pavement was developed based on the digital image processing. First, the classical Lambertian diffuse model was used to obtain three red, green, blue images. Then photometric stereo method was employed to calculated the surface gradients in x and y directions with the reflection intensity of three images. Finally the Frankot-Chellappa global integration algorithm was applied to making the Fourier transformation of the gradients. Thus the heights were obtained and the surface texture was reconstructed. The results indicate that the accuracy of height value obtained by the acquisition system is 0.000 1 mm, which meets the requirement for analysis of texture depth; the correlation coefficient between the results of this system and the traditional sand patch test is 0.887 5, which demonstrates that this acquisition system is practical.

     

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出版历程
  • 收稿日期:  2012-07-29
  • 刊出日期:  2014-03-25

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