Development of express assessment system of road surface with stereo image processing and GPS

基于立体图像处理和GPS的路面快速评价系统的开发

• 批准号: 23760404
• 负责人: SU Di
• 金额: $ 2.66万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23760404/
• 关键词: 維持・管理; 点検・診断; 高速化・効率化; ステレオカメラ; 道路路面状態; 三次元座標再構築; 時間位置同期

This research developed a stereo camera system for road surface assessment. In this study, first the static photos taken by a calibrated stereo camera system are utilized to reconstruct the three-dimensional coordinates of targets in the pavement. Subsequently to align the various coordinates obtained from different view meshes, one modified Iterative Closet Point method is proposed by affording the appropriate initial conditions and image correlation method. Several field tests have been carried out to evaluate the capabilities of this system. After succeeding to align all the measured coordinates, this system can offer not only the accurate information of local deficiency such as the patching, crack or pothole, but also global fluctuation in a long distance range of the road surface.

本研究开发了用于路面评估的立体摄像系统。在本研究中，首先利用标定立体相机系统拍摄的静态照片重建路面目标的三维坐标。随后，通过提供适当的初始条件和图像相关方法，提出了一种改进的迭代封闭点方法，对不同视图网格得到的各种坐标进行对齐。已经进行了几次实地测试，以评估该系统的能力。在对所有测量坐标进行对齐后，该系统不仅可以提供准确的局部缺陷信息，如补丁、裂缝或坑洼，还可以提供路面长距离范围内的全局波动信息。

项目成果

Development of a stereo camera system for road surface assessment,

开发用于路面评估的立体摄像系统，

• 发表时间: 2013
• 作者: Di Su ;Tomonori Nagayama;Masashi Irie and Yozo Fujino
• 通讯作者: Masashi Irie and Yozo Fujino

Development of a stereo camera system for road surface assessment

开发用于路面评估的立体摄像系统

• 发表时间: 2013
• 作者: Di Su ;Tomonori Nagayama;Masashi Irie and Yozo Fujino;Koichi Kobayashi and Kunihiko Hiraishi;重丸伸二;Di Su
• 通讯作者: Di Su