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Authors: James Lotspeich and Mathias Kolsch

Affiliation: Naval Postgraduate School, United States

ISBN: 978-989-8565-41-9

Keyword(s): Subpixel, Maximum a Posterior, Tracking, Viterbi, Distance Transform, Pixel Matched Filter, Template Matching.

Related Ontology Subjects/Areas/Topics: Applications ; Computer Vision, Visualization and Computer Graphics ; Gaussian Processes ; Graphical and Graph-Based Models ; Human-Computer Interaction ; Methodologies and Methods ; Motion and Tracking ; Motion, Tracking and Stereo Vision ; Pattern Recognition ; Physiological Computing Systems ; Theory and Methods

Abstract: In many remote sensing applications, the area of a scene sensed by a single pixel can often be measured in squared meters. This means that many objects of interest in a scene are smaller than a single pixel in the resulting image. Current tracking methods rely on robust object detection using multi-pixel features. A subpixel object does not provide enough information for these methods to work. This paper presents a method for tracking subpixel objects in image sequences captured from a stationary sensor that is critically sampled. Using template matching, we make a Maximum a Posteriori estimate of the target state over a sequence of images. A distance transform is used to calculate the motion prior in linear time, dramatically decreasing computation requirements. We compare the results of this method to a track-before-detect particle filter designed for tracking small, low contrast objects using both synthetic and real-world imagery. Results show our method produces more accurate stat e estimates and higher detection rates than the current state of the art methods at signal-to-noise ratios as low as 3dB. (More)

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Paper citation in several formats:
Lotspeich J. and Kolsch M. (2013). Tracking Subpixel Targets with Critically Sampled Optics.In Proceedings of the 2nd International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM, ISBN 978-989-8565-41-9, pages 375-381. DOI: 10.5220/0004263903750381

@conference{icpram13,
author={James Lotspeich and Mathias Kolsch},
title={Tracking Subpixel Targets with Critically Sampled Optics},
booktitle={Proceedings of the 2nd International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,},
year={2013},
pages={375-381},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004263903750381},
isbn={978-989-8565-41-9},
}

TY - CONF

JO - Proceedings of the 2nd International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,
TI - Tracking Subpixel Targets with Critically Sampled Optics
SN - 978-989-8565-41-9
AU - Lotspeich J.
AU - Kolsch M.
PY - 2013
SP - 375
EP - 381
DO - 10.5220/0004263903750381

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