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Tracking interacting dust: Comparison of tracking and state estimation techniques for dusty plasmas

Oxtoby, NP; Ralph, JF; Samsonov, D; Durniak, C; (2010) Tracking interacting dust: Comparison of tracking and state estimation techniques for dusty plasmas. In:

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Abstract

When tracking a target particle that is interacting with nearest neighbors in a known way, positional data of the neighbors can be used to improve the state estimate. Effects of the accuracy of such positional data on the target track accuracy are investigated in this paper, in the context of dusty plasmas. In kinematic simulations, notable improvement in the target track accuracy was found when including all nearest neighbors in the state estimation filter and tracking algorithm, whereas the track accuracy was not significantly improved by higher-accuracy measurement techniques. The state estimation algorithm, involving an extended Kalman filter, was shown to either remove or significantly reduce errors due to "pixel-locking". For the purposes of determining the precise particle locations, it is concluded that the simplified state estimation algorithm can be a viable alternative to using more computationally-intensive measurement techniques. © 2010 Copyright SPIE - The International Society for Optical Engineering.

Type: Proceedings paper
Title: Tracking interacting dust: Comparison of tracking and state estimation techniques for dusty plasmas
ISBN-13: 9780819481627
DOI: 10.1117/12.852421
URI: http://discovery.ucl.ac.uk/id/eprint/1366173
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