XXII ISPRS Congress 2012: Technical Commission VII

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Multivolume work

Persistent identifier:: 1663813779

Title:: XXII ISPRS Congress 2012

Sub title:: Melbourne, Australia, 25 August-1 September 2012

Year of publication:: 2013

Place of publication:: Red Hook, NY

Publisher of the original:: Curran Associates, Inc.

Identifier (digital):: 1663813779

Language:: English

Additional Notes:: Kongress-Thema: Imaging a sustainable future

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Document type:: Multivolume work

Volume

Persistent identifier:: 1663821976

Title:: Technical Commission VII

Scope:: 546 Seiten

Year of publication:: 2013

Place of publication:: Red Hook, NY

Publisher of the original:: Curran Associates, Inc.

Identifier (digital):: 1663821976

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(39,B7)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist ermittelt.; Literaturangaben

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: [VII/7, III/2, V/1, V/3, ICWG V/I: LOW-COST UAVS (UVSS) AND MOBILE MAPPING SYSTEMS]

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: AUTOMATIC EXTERIOR ORIENTATION PROCEDURE FOR LOW-COST UAV PHOTOGRAMMETRY USING VIDEO IMAGE TRACKING TECHNIQUE AND GPS INFORMATION T. Anai, T. Sasaki, K. Osaragi, M. Yamada, F. Otomo, H. Otani

Document type:: Multivolume work

Structure type:: Chapter

i si + : common feature points : computed still image position Figure 10. 3D model of First Flight t : common feature points -. t computed still image position Figure 11. Result of Second Flight i i A i: common feature points . : computed still image position Figure 12. 3D model of Second Flight From these experiments, it is confirmed that the proposed automatic corresponding point detection method and robust exterior orientation method have enough ability for automatic aerial triangulation using Low-cost UAV in low altitude photogrammetry. 4. CONCLUSION In order to perform automatic aerial triangulation using Low- cost UAV in low altitude application field, we propose International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XXXIX-B7, 2012 XXII ISPRS Congress, 25 August — 01 September 2012, Melbourne, Australia automatic corresponding point detection method and robust exterior orientation method in this investigation. The automatic corresponding point detection method of this investigation utilize video image and still image. The video image can observe the movement of common feature points continuously by the robust common feature point tracking method based on OC image processing. Also, the LSM on still image gives fine accuracy image coordinate. Therefore, the automatic corresponding point detection method of this investigation gives many robust corresponding points from conventional features in each still image automatically. On the other hand, the proposed exterior orientation procedure using robust bundle adjustment base on M-estimator have ability to suppress outlier of GPS observation or miss matched corresponding points. Therefore, the exterior orientation parameter and 3D coordinate from this method is obtained in global coordinate system by using not accurate GPS and minimum global control points. However, the estimation of the reliability of proposed method is still not enough. Also, the process speed of proposed method has to be more increased. Moreover, in order to perform more accurate aerial triangulation without using global control points, utilization of RTK-GPS system has to be considered. Therefore, our next motivation will be the development of low altitude automatic aerial triangulation system using UAV that have RTK-GPS. REFERENCES Remondino, F. et. al., 2011. UAV photogrammetry for mapping and 3D modeling Current status and future perspectives. International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. 38(1/C22). ISPRS Confernce UAV-g, Zurich, Switzerland T, Anai, N. Fukaya, et. al. 2010. Application of Orientation Code Matching for Structure from Motion. Proceedings of the ISPRS Commission V Mid-Term Symposium. Vol XXXVIII, Part 5. pp33-38 D, G, Lowe. 2004. Distinctive image features from scale- invariant keypoints. International Journal of Computer Vision, 60(2). pp91-110 H. Bay, Andreas Ess, Tinne Tuytelaars, Luc Van Gool, 2008. SURF: Speeded Up Robust Features, Computer Vision and Image Understanding (CVIU), Vol. 110, No. 3, pp. 346--359

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