Phase registration in a gallery improving gait authentication

Ngo Thanh Trung, Yasushi Makihara, Hajime Nagahara, Ryusuke Sagawa, Yasuhiro Mukaigawa, Yasushi Yagi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

27 Citations (Scopus)

Abstract

In this paper, we propose a method of inertial sensor-based gait authentication by inter-period phase registration of an owner's gallery. In spite of the importance for gait authentication of constructing a gallery of phase-registered gait patterns, previous implementations just relied on simple methods of period detection based on heuristic knowledge such as local peaks/valleys or local auto-correlation of the gait signals. Consequently, we propose to improve a gait gallery by incorporating a phase registration technique which globally optimizes inter-period phase consistency in an energy minimization framework. However, the previous phase registration technique suffers from a phase distortion problem due to ambiguities in the combination of a periodic signal function and a phase evolution function. We present a linear phase evolution prior to constructing an undistorted gait signal for better matching performance. Experiments using real gait signals from 32 subjects show that the proposed methods outperform the latest methods in the field.

Original languageEnglish
Title of host publication2011 International Joint Conference on Biometrics, IJCB 2011
DOIs
Publication statusPublished - Dec 1 2011
Event2011 International Joint Conference on Biometrics, IJCB 2011 - Washington, DC, United States
Duration: Oct 11 2011Oct 13 2011

Publication series

Name2011 International Joint Conference on Biometrics, IJCB 2011

Other

Other2011 International Joint Conference on Biometrics, IJCB 2011
CountryUnited States
CityWashington, DC
Period10/11/1110/13/11

All Science Journal Classification (ASJC) codes

  • Biotechnology

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    Trung, N. T., Makihara, Y., Nagahara, H., Sagawa, R., Mukaigawa, Y., & Yagi, Y. (2011). Phase registration in a gallery improving gait authentication. In 2011 International Joint Conference on Biometrics, IJCB 2011 [6117527] (2011 International Joint Conference on Biometrics, IJCB 2011). https://doi.org/10.1109/IJCB.2011.6117527