Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W3, 85-90, 2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
23 Feb 2017
L. Barazzetti1, M. Previtali1, and F. Roncoroni2 1Dept. of Architecture, Built environment and Construction engineering (ABC) Politecnico di Milano, Piazza Leonardo da Vinci 32, Milan, Italy
2Polo Territoriale di Lecco, via Previati 1/c, Lecco, Italy
Keywords: 3D modelling, Accuracy, Automation, Bundle adjustment, Calibration, Fisheye, Surface extraction Abstract. The Samsung Gear 360 is a consumer grade spherical camera able to capture photos and videos. The aim of this work is to test the metric accuracy and the level of detail achievable with the Samsung Gear 360 coupled with digital modelling techniques based on photogrammetry/computer vision algorithms. Results demonstrate that the direct use of the projection generated inside the mobile phone or with Gear 360 Action Direction (the desktop software for post-processing) have a relatively low metric accuracy. As results were in contrast with the accuracy achieved by using the original fisheye images (front and rear facing images) in photogrammetric reconstructions, an alternative solution to generate the equirectangular projections was developed. A calibration aimed at understanding the intrinsic parameters of the two lenses camera, as well as their relative orientation, allowed one to generate new equirectangular projections from which a significant improvement of geometric accuracy has been achieved.
Conference paper (PDF, 1512 KB)

Citation: Barazzetti, L., Previtali, M., and Roncoroni, F.: 3D MODELLING WITH THE SAMSUNG GEAR 360, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W3, 85-90,, 2017.

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