ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV-1/W1, 207-213, 2017
https://doi.org/10.5194/isprs-annals-IV-1-W1-207-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
30 May 2017
SYSTEM DESIGN, CALIBRATION AND PERFORMANCE ANALYSIS OF A NOVEL 360° STEREO PANORAMIC MOBILE MAPPING SYSTEM
S. Blaser1, S. Nebiker1, and S. Cavegn1,2 1Institute of Geomatics Engineering, FHNW University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland
2Institute for Photogrammetry, University of Stuttgart, Germany
Keywords: Fisheye Stereo, Panorama, Mobile Mapping, Calibration, Epipolar Rectification, 3D City Model Abstract. Image-based mobile mapping systems enable the efficient acquisition of georeferenced image sequences, which can later be exploited in cloud-based 3D geoinformation services. In order to provide a 360° coverage with accurate 3D measuring capabilities, we present a novel 360° stereo panoramic camera configuration. By using two 360° panorama cameras tilted forward and backward in combination with conventional forward and backward looking stereo camera systems, we achieve a full 360° multi-stereo coverage. We furthermore developed a fully operational new mobile mapping system based on our proposed approach, which fulfils our high accuracy requirements. We successfully implemented a rigorous sensor and system calibration procedure, which allows calibrating all stereo systems with a superior accuracy compared to that of previous work. Our study delivered absolute 3D point accuracies in the range of 4 to 6 cm and relative accuracies of 3D distances in the range of 1 to 3 cm. These results were achieved in a challenging urban area. Furthermore, we automatically reconstructed a 3D city model of our study area by employing all captured and georeferenced mobile mapping imagery. The result is a very high detailed and almost complete 3D city model of the street environment.
Conference paper (PDF, 2498 KB)


Citation: Blaser, S., Nebiker, S., and Cavegn, S.: SYSTEM DESIGN, CALIBRATION AND PERFORMANCE ANALYSIS OF A NOVEL 360° STEREO PANORAMIC MOBILE MAPPING SYSTEM, ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV-1/W1, 207-213, https://doi.org/10.5194/isprs-annals-IV-1-W1-207-2017, 2017.

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