Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XXXVIII-5/W16, 343-350, 2011
http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XXXVIII-5-W16/343/2011/
doi:10.5194/isprsarchives-XXXVIII-5-W16-343-2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
10 Sep 2012
COMPARISON OF TWO STRUCTURE AND MOTION STRATEGIES
R. Roncella1, C. Re2, and G. Forlani1 1DICATeA, University of Parma, 43124 Parma (PR), Italy
2CISAS, University of Padova, 35129 Padova (PD), Italy
Keywords: Orientation, Automation, Reconstruction, Close Range, Photogrammetry, Software, Comparison, Estimation Abstract. Automatic orientation of image sequences in close range photogrammetry is becoming more and more important, not least to maintain a degree of competitiveness with other survey techniques, such as laser scanning. The objective of this paper is to compare two Structure from Motion (SFM) strategies. The previous strategy has been used at our Department for some years already in a wide range of projects and is based on the Harris operator and the fundamental matrix plus the trifocal tensor estimation to filter out the outliers. While it has in most cases performed satisfactorily, the percentage of accepted matches is generally smaller than expected; sometimes this leads to failure of the successful estimation of the trifocal tensor. The second one has only recently been implemented and is still under testing; it is based on the SURF operator and the 5-point relative orientation algorithm. The paper will show a comparison between the two strategies on a series of test cases.
Conference paper (PDF, 907 KB)


Citation: Roncella, R., Re, C., and Forlani, G.: COMPARISON OF TWO STRUCTURE AND MOTION STRATEGIES, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XXXVIII-5/W16, 343-350, doi:10.5194/isprsarchives-XXXVIII-5-W16-343-2011, 2011.

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