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Open AccessArticle

Gait-Based Person Identification Robust to Changes in Appearance

Department of Advanced Information Technology, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
Author to whom correspondence should be addressed.
Sensors 2013, 13(6), 7884-7901;
Received: 28 April 2013 / Revised: 10 June 2013 / Accepted: 14 June 2013 / Published: 19 June 2013
(This article belongs to the Section Physical Sensors)
The identification of a person from gait images is generally sensitive to appearance changes, such as variations of clothes and belongings. One possibility to deal with this problem is to collect possible subjects’ appearance changes in a database. However, it is almost impossible to predict all appearance changes in advance. In this paper, we propose a novel method, which allows robustly identifying people in spite of changes in appearance, without using a database of predicted appearance changes. In the proposed method, firstly, the human body image is divided into multiple areas, and features for each area are extracted. Next, a matching weight for each area is estimated based on the similarity between the extracted features and those in the database for standard clothes. Finally, the subject is identified by weighted integration of similarities in all areas. Experiments using the gait database CASIA show the best correct classification rate compared with conventional methods experiments. View Full-Text
Keywords: gait; person identification; affine moment invariants; local features gait; person identification; affine moment invariants; local features
MDPI and ACS Style

Iwashita, Y.; Uchino, K.; Kurazume, R. Gait-Based Person Identification Robust to Changes in Appearance. Sensors 2013, 13, 7884-7901.

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