CO-REGISTRATION OF PHOTOGRAMMETRIC AND LIDAR DATA: METHODOLOGY AND CASE STUDY

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Ayman Habib
Mwafag Ghanma
Edson Mitishita

Resumo

Registration activities combine data from different sources in order to attain higher accuracy and derive more information than available from one source. The increasing availability of a wide variety of sensors capable of capturing high quality and complementary data requires parallel efforts for developing accurate and robust registration techniques. Currently, photogrammetric and LIDAR systems are being incorporated in a wide spectrum of mapping applications such as city modeling, surface reconstruction, and object recognition. Photogrammetric processing of overlapping imagery provides accurate information regarding object space break-lines in addition to an explicit semantic description of the photographed objects. On the other hand, LIDAR systems supply dense geometric surface information in the form of non-selective points. Considering the properties of photogrammetric and LIDAR data, it is clear that the two technologies provide complementary information. However, the synergic characteristics of both systems can be fully utilized only after successful registration of the photogrammetric and LIDAR data relative to a common reference frame. The registration methodology has to deal with three issues: registration primitives, transformation function, and similarity measure. This paper presents two methodologies for utilizing straight-line features derived from both datasets as the registration primitives. The first methodology directly incorporates the LIDAR lines as control information in the photogrammetric triangulation. The second methodology starts by generating a photogrammetric model relative to an arbitrary datum. Then, LIDAR features are used as control information for the absolute orientation of the photogrammetric model. In addition to the registration methodologies, the paper presents a comparative analysis between two approaches for extracting linear features from raw and processed/interpolated LIDAR data. Also, a comparative analysis between metric analog and amateur digital cameras within the registration process will be presented. The performance analysis is based on the quality of fit of the final alignment between the LIDAR and photogrammetric models.

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HABIB, A.; GHANMA, M.; MITISHITA, E. CO-REGISTRATION OF PHOTOGRAMMETRIC AND LIDAR DATA: METHODOLOGY AND CASE STUDY. Revista Brasileira de Cartografia, [S. l.], v. 56, n. 1, 2009. DOI: 10.14393/rbcv56n1-43497. Disponível em: https://seer.ufu.br/index.php/revistabrasileiracartografia/article/view/43497. Acesso em: 16 fev. 2025.
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Biografia do Autor

Ayman Habib, University of Calgary

Department of Geomatics Engineering University of Calgary

Mwafag Ghanma, University of Calgary

Department of Geomatics Engineering University of Calgary

Edson Mitishita, Universidade Federal do Paraná - UFPR

Universidade Federal do Paraná - UFPR Setor de Ciências da Terra - Departamento de Geomática
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