On the Performance and Use of Speaker Recognition Systems for Surveillance

Barger, Peter J. & Sridharan, Sridha (2006) On the Performance and Use of Speaker Recognition Systems for Surveillance. In IEEE International Conference on Video and Signal Based Surveillance, 2006. AVSS '06, Nov. 2006, Sydney, Australia.

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We model the performance of a speaker recognition system used for surveillance to prioritize a large number of candidate speakers in search of a single target speaker. It is assumed that the system operates by ordering all speakers in order from best match to worst match, with the goal of having the true speaker sample positioned as high as possible on the list. Some performance measures for prioritization systems are given and are applied to a real speaker recognition system. An analytic expression for the probability density function of the true speaker ¿s position on the list is found, subject to basic assumptions concerning the distribution of true speaker and false speaker scores. A comparison is made to the performance of a system which is operating only by making verification decisions, and it is shown that making soft decisions results in significantly better surveillance performance.

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ID Code: 9538
Item Type: Conference Paper
Refereed: Yes
DOI: 10.1109/AVSS.2006.87
ISBN: 0769526888
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2006 IEEE
Copyright Statement: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On: 17 Sep 2007 00:00
Last Modified: 29 Feb 2012 13:25

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