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

Guihua Zhao; Hong Chen; Xingquan Li; Xiaoliang Zou

doi:10.1117/12.2020134

4 March 2013 Integrated calibration between digital camera and laser scanner from mobile mapping system for land vehicles

Guihua Zhao, Hong Chen, Xingquan Li, Xiaoliang Zou

Author Affiliations +

Proceedings Volume 8761, PIAGENG 2013: Image Processing and Photonics for Agricultural Engineering; 87610V (2013) https://doi.org/10.1117/12.2020134
Event: Third International Conference on Photonics and Image in Agriculture Engineering (PIAGENG 2013), 2013, Sanya, China

Abstract

The paper presents the concept of lever arm and boresight angle, the design requirements of calibration sites and the integrated calibration method of boresight angles of digital camera or laser scanner. Taking test data collected by Applanix’s LandMark system as an example, the camera calibration method is introduced to be piling three consecutive stereo images and OTF-Calibration method using ground control points. The laser calibration of boresight angle is proposed to use a manual and automatic method with ground control points. Integrated calibration between digital camera and laser scanner is introduced to improve the systemic precision of two sensors. By analyzing the measurement value between ground control points and its corresponding image points in sequence images, a conclusion is that position objects between camera and images are within about 15cm in relative errors and 20cm in absolute errors. By comparing the difference value between ground control points and its corresponding laser point clouds, the errors is less than 20cm. From achieved results of these experiments in analysis, mobile mapping system is efficient and reliable system for generating high-accuracy and high-density road spatial data more rapidly.

Citation Download Citation

Guihua Zhao, Hong Chen, Xingquan Li, and Xiaoliang Zou "Integrated calibration between digital camera and laser scanner from mobile mapping system for land vehicles", Proc. SPIE 8761, PIAGENG 2013: Image Processing and Photonics for Agricultural Engineering, 87610V (4 March 2013); https://doi.org/10.1117/12.2020134

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