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Object recognition is a challenging problem for artificial systems. This is especially true for objects that are placed in cluttered and uncontrolled environments. To challenge this problem, we discuss an active approach to object recognition. Instead of passively observing objects, we use a robot to actively explore the objects. This enables the system to learn objects from different viewpoints and to actively select viewpoints for optimal recognition. Active vision furthermore simplifies the segmentation of the object from its background. As the basis for object recognition we use the Scale Invariant Feature Transform (SIFT). SIFT has been a successful method for image representation. However, a known drawback of SIFT is that the computational complexity of the algorithm increases with the number of keypoints. We discuss a growing-when-required (GWR) network for efficient clustering of the key- points. The results show successful learning of 3D objects in real-world environments. The active approach is successful in separating the object from its cluttered background, and the active selection of viewpoint further increases the performance. Moreover, the GWR-network strongly reduces the number of keypoints.

April 01 2008 Evolution and Culture. Stephen C. Levinson and Pierre Jaisson (Eds.). (2006, MIT Press.) $75 (cloth), $35 (paper), xvii + 296 pages Bart de Boer Bart de Boer * Universiteit van Amsterdam, Institute of Phonetic Sciences, Spuistraat 210, 1012 VT Amsterdam, The Netherlands. E-mail: [email protected]** Artificial Intelligence, Rijksuniversiteit Groningen. Search for other works by this author on: This Site Google Scholar Author and Article Information Bart de Boer * Universiteit van Amsterdam, Institute of Phonetic Sciences, Spuistraat 210, 1012 VT Amsterdam, The Netherlands. E-mail: [email protected]** Artificial Intelligence, Rijksuniversiteit Groningen. Online Issn: 1530-9185 Print Issn: 1064-5462 © 2008 Massachusetts Institute of Technology2008 Artificial Life (2008) 14 (2): 223–225. https://doi.org/10.1162/artl.2008.14.2.223 Cite Icon Cite Permissions Share Icon Share Twitter LinkedIn Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Search Site Citation Bart de Boer; Evolution and Culture. Stephen C. Levinson and Pierre Jaisson (Eds.). (2006, MIT Press.) $75 (cloth), $35 (paper), xvii + 296 pages. Artif Life 2008; 14 (2): 223–225. doi: https://doi.org/10.1162/artl.2008.14.2.223 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsArtificial Life Search Advanced Search This content is only available as a PDF. © 2008 Massachusetts Institute of Technology2008 Article PDF first page preview Close Modal You do not currently have access to this content.

Paul Snijders Kunstmatige Intelligentie Groningen University Grote Kruisstraat 2/1 9712 TS Groningen, The Netherlands [email protected] Edwin D. de Jong Institute of Information and Computing Sciences Utrecht University PO Box 80.089 3508 TB Utrecht, The Netherlands [email protected] Bart de Boer Kunstmatige Intelligentie Groningen University Grote Kruisstraat 2/1 9712 TS Groningen, The Netherlands [email protected] Franjo Weissing Centre for Ecological and Evolutionary Studies Groningen University Kerklaan 30 9751 NN Groningen, The Netherlands [email protected]

January 01 2003 The Atoms of Language: The Mind's Hidden Rules of Grammar; Foundations of Language: Brain, Meaning, Grammar, Evolution The Atoms of Language: The Mind's Hidden Rules of Grammar. Mark C.Baker. ( 2001, Basic Books.) 250 pages.Foundations of Language: Brain, Meaning, Grammar, Evolution. RayJackendoff. ( 2002, Oxford University Press.) 496 pages. Bart de Boer Bart de Boer Artificial Intelligence Laboratory, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium, [email protected] Search for other works by this author on: This Site Google Scholar Author and Article Information Bart de Boer Artificial Intelligence Laboratory, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium, [email protected] Online Issn: 1530-9185 Print Issn: 1064-5462 © 2003 Massachusetts Institute of Technology2003 Artificial Life (2003) 9 (1): 89–91. https://doi.org/10.1162/106454603321489545 Cite Icon Cite Permissions Share Icon Share Facebook Twitter LinkedIn Email Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Search Site Citation Bart de Boer; The Atoms of Language: The Mind's Hidden Rules of Grammar; Foundations of Language: Brain, Meaning, Grammar, Evolution. Artif Life 2003; 9 (1): 89–91. doi: https://doi.org/10.1162/106454603321489545 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search nav search search input Search input auto suggest search filter All ContentAll JournalsArtificial Life Search Advanced Search This content is only available as a PDF. © 2003 Massachusetts Institute of Technology2003 Article PDF first page preview Close Modal You do not currently have access to this content.