Exploring objects for recognition in the real world

Gert Kootstra*, Jelmer Ypma, Bart De Boer

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paper

1 Citation (Scopus)

Abstract

Perception in natural systems is a highly active process. In this paper, we adopt the strategy of natural systems to explore objects for 3D object recognition using robots. The exploration of objects enables the system to learn objects from different viewpoints, which is essential for 3D object recognition. Exploration furthermore simplifies the segmentation of the object from its background, which is important for object learning in real-world environments, which are usually highly cluttered. We use the Scale Invariant Feature Transform (SIFT) as the basis for our object recognition system. We discuss our active vision approach to learn and recognize 3D objects in cluttered and uncontrolled environments. Furthermore, we propose a model to reduce the number of SIFT keypoints stored in the object database. It is a known drawback of SIFT that the computational complexity of the algorithm increases rapidly with the number of keypoints. We discuss the use of a growing-when-required (GWR) network, which is based on the Kohonen Self Organizing Feature Map, for efficient clustering of the keypoints. The results show successful learning of 3D objects in a cluttered and uncontrolled environment. Moreover, the GWR-network strongly reduces the number of keypoints.

Original languageEnglish
Title of host publication2007 IEEE International Conference on Robotics and Biomimetics, ROBIO
Place of PublicationSanya, China
PublisherIEEE computer society
Pages429-434
Number of pages6
ISBN (Print)9781424417582, 9781424417612
DOIs
Publication statusPublished - 16 May 2008
Externally publishedYes
Event2007 IEEE International Conference on Robotics and Biomimetics, ROBIO - Yalong Bay, Sanya, China
Duration: 15 Dec 200718 Dec 2007

Conference

Conference2007 IEEE International Conference on Robotics and Biomimetics, ROBIO
CountryChina
CityYalong Bay, Sanya
Period15/12/0718/12/07

Keywords

  • Active vision
  • Clustering
  • Object exploration
  • Object recognition
  • SIFT

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