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Authors: José C. R. Seabra and Ana L. N. Fred

Affiliation: Instituto Superior Técnico, Portugal

ISBN: 978-989-8111-65-4

Keyword(s): Biometrics, Thyroid gland, Ultrasound, Acoustic impedance, Texture, Diagnosis.

Related Ontology Subjects/Areas/Topics: Applications ; Applications and Services ; Biomedical Engineering ; Biomedical Signal Processing ; Biometrics ; Biometrics and Pattern Recognition ; Computer Vision, Visualization and Computer Graphics ; Medical Image Detection, Acquisition, Analysis and Processing ; Multimedia ; Multimedia Signal Processing ; Pattern Recognition ; Telecommunications

Abstract: This paper proposes a biometric system based on features extracted from the thyroid tissue accessed through 2D ultrasound. Tissue echo-morphology, which accounts for the intensity (echogenicity), texture and structure has started to be used as a relevant parameter in a clinical setting. In this paper, features related to texture, morphology and tissue reflectivity are extracted from the ultrasound images and the most discriminant ones are selected as an input for a prototype biometric identification system. Several classifiers were tested, with the best results (90% identification rate) being achieved with the maximum a posteriori classifier. Another classifier which only takes into account the reflectivity parameter achieved a reasonable identification rate of 70%. This suggests that the acoustic impedance (reflectivity) of the tissue is a good parameter to discriminate between individuals. This paper shows the effectiveness of the proposed classification, which can be used not only as a new biometric modality but also as a diagnostic tool. (More)

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Paper citation in several formats:
C. R. Seabra J.; L. N. Fred A. and (2009). A BIOMETRIC IDENTIFICATION SYSTEM BASED ON THYROID TISSUE ECHO-MORPHOLOGY.In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2009) ISBN 978-989-8111-65-4, pages 186-193. DOI: 10.5220/0001556501860193

@conference{biosignals09,
author={José {C. R. Seabra} and Ana {L. N. Fred}},
title={A BIOMETRIC IDENTIFICATION SYSTEM BASED ON THYROID TISSUE ECHO-MORPHOLOGY},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2009)},
year={2009},
pages={186-193},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001556501860193},
isbn={978-989-8111-65-4},
}

TY - CONF

JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2009)
TI - A BIOMETRIC IDENTIFICATION SYSTEM BASED ON THYROID TISSUE ECHO-MORPHOLOGY
SN - 978-989-8111-65-4
AU - C. R. Seabra, J.
AU - L. N. Fred, A.
PY - 2009
SP - 186
EP - 193
DO - 10.5220/0001556501860193

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