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Theses, dissertations and research publications (including journal articles, conference abstracts and books) from Lund University are collected in this database. Where possible, the option to download a full text document is available. It is also possible to search for Lund University student theses in the student theses database.
|Title||Using GNG to improve 3D features extractio - Application to 6DoF Egomotion|
|Author/s||Diego Viejo, Jose Garcia, Miguel Cazorla, David Gil, Magnus Johnsson|
|Full-text||Full text is not available in this archive|
|Alternative location (URL)||http://dx.doi.org/10.1016/j.ne... Restricted Access (Alternative Location)|
|Pages||138 - 146|
|Document type||Journal article|
|Abstract||Several recent works deal with 3D data in mobile robotic problems, e.g. mapping or egomotion. Data comes from any kind of sensor such as stereo vision systems, time of flight cameras or 3D lasers, providing a huge amount of unorganized 3D data. In this paper, we describe an efficient method to build complete 3D models from a Growing Neural Gas (GNG). The GNG is applied to the 3D raw data and it reduces both the subjacent error and the number of points, keeping the topology of the 3D data. The GNG output is then used in a 3D feature extraction method. We have performed a deep study in which we quantitatively show that the use of GNG improves the 3D feature extraction method. We also show that our method can be applied to any kind of 3D data. The 3D features obtained are used as input in an Iterative Closest Point (ICP)-like method to compute the 6DoF movement performed by a mobile robot. A comparison with standard ICP is performed, showing that the use of GNG improves the results. Final results of 3D mapping from the egomotion calculated are also shown. (C) 2012 Elsevier Ltd. All rights reserved.|
Technology and Engineering
|Keywords||Egomotion, GNG, 3D feature extraction, 6DoF registration|
|Research group||Lund University Cognitive Science (LUCS)|
|Project||Cognition, Communication and Learning|
+46 (0)46 222 0326
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