Integrated calibration between digital camera and laser scanner from mobile mapping system for land vehicles

Zhao, Guihua; Chang, Hong; Li, Xingquan; Xiao-liang, Zou

doi:10.1117/12.2020134

SPIE Proceedings

2013

DOI: 10.1117/12.2020134

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Integrated calibration between digital camera and laser scanner from mobile mapping system for land vehicles

Guihua Zhao¹,

Hong Chang²,

Xingquan Li³

et al.

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2015

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“…Their values can be obtained by a laboratory/field calibration procedure and then, treated as known quantities in subsequent analyses. A detailed calibration procedure has been thoroughly explained and discussed in Zhao et al (2013) and is thus not repeated here. After substituting Equations (12) and (13) into Equations (10) and (11), the object coordinates of the feature points can be determined accordingly.…”

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Mapping road surface features using single-camera images acquired by a mobile mapping system

Han

Chou

Tsai

2015

Journal of the Chinese Institute of Engineers

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Mapping road surface features, such as manholes, traffic markings, and cracks, is an essential task for transportation facility management. Although, these features can be rapidly surveyed using the latest mobile mapping techniques, a sophisticated sensor system with a complicated post-processing procedure is usually required. In this study, an efficient framework for modeling road surface features is proposed using a single camera system installed on a moving platform. First, the road surface images along a route of interest are acquired and potential objects are identified based on their shapes and recorded spectra in the images. Then, the contour pixels of the identified objects are extracted by the Canny edge detection technique. Finally, the 3D coordinates of the detected features in object space are obtained by integrating the profile-image technique and the instantaneous exterior orientation parameters of the platform. Based on the numerical results from a case study, it has been demonstrated that a fully automatic and reliable extraction of road surface features can be easily achieved by implementing the proposed approach. Consequently, the modeling of road surface features, which essentially contributes to the management of transportation facilities, can be executed in a cost-efficient manner.

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confidence: 99%

Mapping road surface features using single-camera images acquired by a mobile mapping system

Han

Chou

Tsai

2015

Journal of the Chinese Institute of Engineers

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Integrated calibration between digital camera and laser scanner from mobile mapping system for land vehicles

Cited by 1 publication

References 0 publications

Mapping road surface features using single-camera images acquired by a mobile mapping system

Mapping road surface features using single-camera images acquired by a mobile mapping system

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