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Authors: L. A. Zarrabeitia ; D. A. Aruliah and F. Z. Qureshi

Affiliation: University of Ontario Institute of Technology, Canada

ISBN: 978-989-8425-99-7

Keyword(s): Stereo reconstruction, Tracking, Droplets, Blood flight, Multi-target tracking.

Related Ontology Subjects/Areas/Topics: Applications ; Computer Vision, Visualization and Computer Graphics ; Human-Computer Interaction ; Image and Video Analysis ; Methodologies and Methods ; Motion and Tracking ; Motion, Tracking and Stereo Vision ; Pattern Recognition ; Physiological Computing Systems ; Software Engineering ; Video Analysis

Abstract: We present a method for extracting three-dimensional flight trajectories of liquid droplets from video data. A high-speed stereo camera pair records videos of experimental reconstructions of projectile impacts and ensuing droplet scattering. After background removal and segmentation of individual droplets in each video frame, we introduce a model-based matching technique to accumulate image paths for individual droplets. Our motion detection algorithm is designed to deal gracefully with the lack of feature points, with the similarity of droplets in shape, size, and color, and with incomplete droplet paths due to noise, occlusions, etc. The final reconstruction algorithm pairs two-dimensional paths accumulated from each of the two cameras’ videos to reconstruct trajectories in three dimensions. The reconstructed droplet trajectories constitute a starting point for a physically accurate model of blood droplet flight for forensic bloodstain pattern analysis.

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Paper citation in several formats:
A. Zarrabeitia, L.; A. Aruliah, D. and Z. Qureshi, F. (2012). EXTRACTION OF BLOOD DROPLET FLIGHT TRAJECTORIES FROM VIDEOS FOR FORENSIC ANALYSIS.In Proceedings of the 1st International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM, ISBN 978-989-8425-99-7, pages 142-153. DOI: 10.5220/0003770201420153

@conference{icpram12,
author={L. A. Zarrabeitia. and D. A. Aruliah. and F. Z. Qureshi.},
title={EXTRACTION OF BLOOD DROPLET FLIGHT TRAJECTORIES FROM VIDEOS FOR FORENSIC ANALYSIS},
booktitle={Proceedings of the 1st International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,},
year={2012},
pages={142-153},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003770201420153},
isbn={978-989-8425-99-7},
}

TY - CONF

JO - Proceedings of the 1st International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,
TI - EXTRACTION OF BLOOD DROPLET FLIGHT TRAJECTORIES FROM VIDEOS FOR FORENSIC ANALYSIS
SN - 978-989-8425-99-7
AU - A. Zarrabeitia, L.
AU - A. Aruliah, D.
AU - Z. Qureshi, F.
PY - 2012
SP - 142
EP - 153
DO - 10.5220/0003770201420153

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