학술논문

Experiments on augmenting CONDENSATION for mobile robot localization
Document Type
Conference
Source
Proceedings 2000 ICRA. Millennium Conference. IEEE International Conference on Robotics and Automation. Symposia Proceedings (Cat. No.00CH37065) Robotics and automation Robotics and Automation, 2000. Proceedings. ICRA '00. IEEE International Conference on. 3:2518-2524 vol.3 2000
Subject
Robotics and Control Systems
Computing and Processing
Signal Processing and Analysis
Mobile robots
Large-scale systems
Robot kinematics
Computer vision
Probability density function
Convergence
Computational complexity
Sampling methods
Language
ISSN
1050-4729
Abstract
We study some modifications of the CONDENSATION algorithm. The case studied is feature based mobile robot localization in a large scale environment. The required sample set size for making the CONDENSATION algorithm converge properly can in many cases require too much computation. To manage with a sample set size which in the normal case would cause the CONDENSATION algorithm to break down. We study two modifications. The first strategy, called "CONDENSATION with random sampling", takes part of the sample set and spreads it randomly over the environment the robot operates in. The second strategy, called "CONDENSATION with planned sampling", places part of the sample set at planned positions based on the detected features. From the experiments we conclude that the second strategy is the best and can reduce the sample set size by at feast a factor of 40.