Advanced search
1 file | 503.32 KB

Automatic and robust external camera calibration for high accuracy mobile mapping

Werner Goeman (UGent) , Koen Douterloigne (UGent) , Peter Bogaert (UGent) , Rui Pires and Sidharta Gautama (UGent)
Author
Organization
Abstract
A mobile mapping system (MMS) is the answer of the geoinformation community to the exponentially growing demand for various geospatial data with increasingly higher accuracies and captured by multiple sensors. As the mobile mapping technology is pushed to explore its use for various applications on water, rail, or road, the need emerges to have an external sensor calibration procedure which is portable, fast and easy to perform. This way, sensors can be mounted and demounted depending on the application requirements without the need for time consuming calibration procedures. A new methodology is presented to provide a high quality external calibration of cameras which is automatic, robust and fool proof. The MMS uses an Applanix POSLV420, which is a tightly coupled GPS/INS positioning system. The cameras used are Point Grey color video cameras synchronized with the GPS/INS system. The method uses a portable, standard ranging pole which needs to be positioned on a known ground control point. For calibration a well studied absolute orientation problem needs to be solved. Here, a mutual information based image registration technique is studied for automatic alignment of the ranging pole. Finally, a few benchmarking tests are done under various lighting conditions which proves the methodology’s robustness, by showing high absolute stereo measurement accuracies of a few centimeters.
Keywords
Mobile mapping, extrinsic calibration, external calibration, automation, image registration, mutual information

Downloads

  • spie2012.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 503.32 KB

Citation

Please use this url to cite or link to this publication:

Chicago
Goeman, Werner, Koen Douterloigne, Peter Bogaert, Rui Pires, and Sidharta Gautama. 2012. “Automatic and Robust External Camera Calibration for High Accuracy Mobile Mapping.” In Proceedings of SPIE, the International Society for Optical Engineering, ed. AG Tescher. Vol. 8499. Bellingham, WA, USA: SPIE, the International Society for Optical Engineering.
APA
Goeman, W., Douterloigne, K., Bogaert, P., Pires, R., & Gautama, S. (2012). Automatic and robust external camera calibration for high accuracy mobile mapping. In A. Tescher (Ed.), Proceedings of SPIE, the International Society for Optical Engineering (Vol. 8499). Presented at the 35th Conference on Applications of Digital Image Processing ; Optics and Photonics: Image and Signal Processing (SPIE 2012), Bellingham, WA, USA: SPIE, the International Society for Optical Engineering.
Vancouver
1.
Goeman W, Douterloigne K, Bogaert P, Pires R, Gautama S. Automatic and robust external camera calibration for high accuracy mobile mapping. In: Tescher A, editor. Proceedings of SPIE, the International Society for Optical Engineering. Bellingham, WA, USA: SPIE, the International Society for Optical Engineering; 2012.
MLA
Goeman, Werner, Koen Douterloigne, Peter Bogaert, et al. “Automatic and Robust External Camera Calibration for High Accuracy Mobile Mapping.” Proceedings of SPIE, the International Society for Optical Engineering. Ed. AG Tescher. Vol. 8499. Bellingham, WA, USA: SPIE, the International Society for Optical Engineering, 2012. Print.
@inproceedings{2976595,
  abstract     = {A mobile mapping system (MMS) is the answer of the geoinformation community to the exponentially growing demand for various geospatial data with increasingly higher accuracies and captured by multiple sensors. As the mobile mapping technology is pushed to explore its use for various applications on water, rail, or road, the need emerges to have an external sensor calibration procedure which is portable, fast and easy to perform. This way, sensors can be mounted and demounted depending on the application requirements without the need for time consuming calibration procedures. A new methodology is presented to provide a high quality external calibration of cameras which is automatic, robust and fool proof. The MMS uses an Applanix POSLV420, which is a tightly coupled GPS/INS positioning system. The cameras used are Point Grey color video cameras synchronized with the GPS/INS system. The method uses a portable, standard ranging pole which needs to be positioned on a known ground control point. For calibration a well studied absolute orientation problem needs to be solved. Here, a mutual information based image registration technique is studied for automatic alignment of the ranging pole. Finally, a few benchmarking tests are done under various lighting conditions which proves the methodology{\textquoteright}s robustness, by showing high absolute stereo measurement accuracies of a few centimeters.},
  articleno    = {84991A},
  author       = {Goeman, Werner and Douterloigne, Koen and Bogaert, Peter and Pires, Rui and Gautama, Sidharta},
  booktitle    = {Proceedings of SPIE, the International Society for Optical Engineering},
  editor       = {Tescher, AG},
  isbn         = {9780819492449},
  issn         = {0277-786X},
  language     = {eng},
  location     = {San Diego, CA, USA},
  pages        = {8},
  publisher    = {SPIE, the International Society for Optical Engineering},
  title        = {Automatic and robust external camera calibration for high accuracy mobile mapping},
  url          = {http://dx.doi.org/10.1117/12.928848},
  volume       = {8499},
  year         = {2012},
}

Altmetric
View in Altmetric
Web of Science
Times cited: