Orientation and integration of images and image blocks with laser scanning data

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Aalto-yliopiston teknillinen korkeakoulu | Doctoral thesis (article-based)
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Date
2010
Major/Subject
Mcode
Degree programme
Language
en
Pages
Verkkokirja (1964 KB, 63 s.)
Series
Publications / TKK Institute of Photogrammetry and Remote Sensing, 1/2010
Abstract
Laser scanning and photogrammetry are methods for effective and accurate measurement and classification of urban and forest areas. Because these methods complement each other, then integration or integrated use brings additional benefits to real-life applications. However, finding tie features between data sets is a challenging task since laser scanning and imagery are far from each other in nature. The aim of this thesis was to create methods for solving relative orientations between laser scanning data and imagery that would assist in near-future applications integrating laser scanning and photogrammetry. Moreover, a further goal was to create methods enabling the use of data acquired from very different perspectives, such as terrestrial and airborne data. To meet these aims, an interactive orientation method enabling the use of single images, stereo images or larger image blocks was developed and tested. The multi-view approach usually has a significant advantage over the use of a single image. After accurate orientation of laser scanning data and imagery, versatile applications become available. Such applications include, e.g., automatic object recognition, accurate classification of individual trees, point cloud densification, automatic classification of land use, system calibration, and generation of photorealistic 3D models. Besides the orientation part, another aim of the research was to investigate how to fuse or use these two data types together in applications. As a result, examples that evaluated the behavior of laser point clouds in both urban and forestry areas, detection and visualization of temporal changes, enhanced data understanding, stereo visualization, multi-source and multi-angle data fusion, point cloud colorizing, and detailed examination of full waveform laser scanning data were given.
Description
Supervising professor
Haggren, Henrik, Prof.
Thesis advisor
Hyyppä, Hannu, Dr.
Keywords
photogrammetry, laser scanning, orientation, integration
Other note
Parts
  • [Publication 1]: P. Rönnholm, E. Honkavaara, P. Litkey, H. Hyyppä, and J. Hyyppä. 2007. Integration of laser scanning and photogrammetry (Key-note). In: P. Rönnholm, H. Hyyppä, and J. Hyyppä (editors). Proceedings of the ISPRS Workshop on Laser Scanning 2007 and SilviLaser 2007. Espoo, Finland. 12-14 September 2007. International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, volume 36, part 3 / W52, pages 355-362. © 2007 by authors.
  • [Publication 2]: Petri Rönnholm, Hannu Hyyppä, Petteri Pöntinen, Henrik Haggrén, and Juha Hyyppä. 2003. A method for interactive orientation of digital images using backprojection of 3D data. The Photogrammetric Journal of Finland, volume 18, number 2, pages 58-69. © 2003 by authors.
  • [Publication 3]: Petri Rönnholm, Hannu Hyyppä, Juha Hyyppä, and Henrik Haggrén. 2009. Orientation of airborne laser scanning point clouds with multi-view, multi-scale image blocks. Sensors, volume 9, number 8, pages 6008-6027. © 2009 by authors.
  • [Publication 4]: Petri Rönnholm, Juha Hyyppä, Hannu Hyyppä, Henrik Haggrén, Xiaowei Yu, and Harri Kaartinen. 2004. Calibration of laser-derived tree height estimates by means of photogrammetric techniques. Scandinavian Journal of Forest Research, volume 19, number 6, pages 524-528.
  • [Publication 5]: P. Litkey, P. Rönnholm, J. Lumme, and X. Liang. 2007. Waveform features for tree identification. In: P. Rönnholm, H. Hyyppä, and J. Hyyppä (editors). Proceedings of the ISPRS Workshop on Laser Scanning 2007 and SilviLaser 2007. Espoo, Finland. 12-14 September 2007. International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, volume 36, part 3 / W52, pages 258-263. © 2007 by authors.
  • [Publication 6]: Hannu Hyyppä, Petri Rönnholm, Arttu Soininen, and Juha Hyyppä. 2005. Scope for laser scanning to provide road environment information. The Photogrammetric Journal of Finland, volume 19, number 2, pages 19-33. © 2005 by authors.
Citation