Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/36215
Title: Ear-parotic face angle : a unique feature for 3D ear recognition
Authors: Liu, YH
Zhang, B
Zhang, D 
Keywords: 3D ear recognition
Biometrics
Ear-parotic face angle
3D ear indexing
Issue Date: 2015
Publisher: North-Holland
Source: Pattern recognition letters, 2015, v. 53, p. 9-15 How to cite?
Journal: Pattern recognition letters 
Abstract: This paper proposes a unique characteristic in 3D ear images: ear-parotic face angle of the person. The ear-parotic face angle feature is defined as the angle between the normal vector of the ear-plane and the normal vector of the parotic face-plane. It is a unique and stable feature in 3D ears, and is able to provide indexing identification as well as hierarchical verification solutions which enhance both the speed and accuracy of 3D ear recognition. The experimental results show that by using the angle indexing in identification, the search range is reduced to 9.69% from the original, which is a considerable reduction in time. The verification experiment also achieved an equal error rate (ERR) improvement (from 2.8% to 2.3%) by combing the angle feature with iterative closest point (ICP) method.
URI: http://hdl.handle.net/10397/36215
ISSN: 0167-8655
DOI: 10.1016/j.patrec.2014.10.014
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