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Article
Model-Instance Object Mapping
Lecture Notes in Computer Science
  • Joydeep Biswas, Carnegie Mellon University
  • Manuela M. Veloso, Carnegie Mellon University
Disciplines
Date of Original Version
7-1-2014
Type
Conference Proceeding
Rights Management
The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-319-18615-3_43
Abstract or Description

Robot localization and mapping algorithms commonly represent the world as a static map. In reality, human environments consist of many movable objects like doors, chairs and tables. Recognizing that such environment often have a large number of instances of a small number of types of objects, we propose an alternative approach, Model-Instance Object Mapping that reasons about the models of objects distinctly from their different instances. Observations classified as short-term features by Episodic non-Markov Localization are clustered to detect object instances. For each object instance, an occupancy grid is constructed, and compared to every other object instance to build a directed similarity graph. Common object models are discovered as strongly connected components of the graph, and their models as well as distribution of instances saved as the final Model-Instance Object Map. By keeping track of the poses of observed instances of object models, Model-Instance Object Maps learn the most probable locations for commonly observed object models. We present results of Model-Instance Object Mapping over the course of a month in our indoor office environment, and highlight the common object models thus learnt in an unsupervised manner.

DOI
10.1007/978-3-319-18615-3_43
Citation Information
Joydeep Biswas and Manuela M. Veloso. "Model-Instance Object Mapping" Lecture Notes in Computer Science Vol. 8892 (2014) p. 525 - 536
Available at: http://works.bepress.com/joydeep-biswas/9/