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Fast Registration of Laser Scans with 4-point Congruent Sets - Wha...

By: J. D. Wegner; K. Schindler; P. W. Theiler

Description: Institute of Geodesy and Photogrammetry, ETH Zürich, 8093 Zürich, Switzerland. Sampling-based algorithms in the mould of RANSAC have emerged as one of the most successful methods for the fully automated registration of point clouds acquired by terrestrial laser scanning (TLS). Sampling methods in conjunction with 3D keypoint extraction, have shown promising results, e.g. the recent K-4PCS (Theiler et al., 2013). However, they still exhibit certain improbab...

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A Task-oriented Disaster Information Correlation Method : Volume I...

By: Z. Qing; D. Zhiqiang; Q. Linyao

Description: State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, 430079 Wuhan, China. With the rapid development of sensor networks and Earth observation technology, a large quantity of disaster-related data is available, such as remotely sensed data, historic data, case data, simulated data, and disaster products. However, the efficiency of current data management and service systems has become increasingly difficu...

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City-wide Total Energy Demand Estimation of Buildings Using Semant...

By: T. H. Kolbe; R. Kaden

Description: Chair of Geoinformatics, Technische Universität München, Germany. The present climate and environmental policy efforts require comprehensive planning regarding the modification of the energy supply and infrastructures in cities. The strategic planning of the different measures requires a holistic approach and the combination of extensive and complex information. Within this paper, current developments in the context of the project Energy Atlas Berlin are ...

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Comparative Study of Two Automatic Registration Algorithms : Volum...

By: M Crawford; D. Grant; J. Bethel

Description: School of Civil Engineering and Geosciences, Newcastle University, NE1 7RU, UK. The Iterative Closest Point (ICP) algorithm is prevalent for the automatic fine registration of overlapping pairs of terrestrial laser scanning (TLS) data. This method along with its vast number of variants, obtains the least squares parameters that are necessary to align the TLS data by minimizing some distance metric between the scans. The ICP algorithm uses a model-data conc...

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Feature-driven 3D Building Modeling Using Planar Halfspaces : Volu...

By: A. Wichmann; M. Kada

Description: Institute for Geoinformatics and Remote Sensing (IGF), University of Osnabrück Barbarastr. 22b, 49076 Osnabrück, Germany. With the exception of pure data-driven methods, reconstruction approaches for 3D building models from aerial point clouds often incorporate some level of model information to construct regularized and well-formed roof structures. In the proposed feature-driven approach, low-level roof features like ridge lines, gable and (half-) hip end...

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