Title | ||
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Gait-based human age estimation using age group-dependent manifold learning and regression. |
Abstract | ||
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Human age estimation from gait is expected to be an important technology for a variety of applications such as automatic customer counting for marketing research or automatic age-based access control restriction for a specific area because the gait can be observable at a distance from a camera (e.g., CCTV). Although the aging process of gait significantly differs among age groups (e.g., children, adults, and the elderly), previous studies on gait-based human age estimation employ a single age group-independent estimation model that suffers from large estimation errors when the age variation increases. We therefore propose an age group-dependent gait-based human age estimation method for better accuracy. Specifically, in the training phase, we first compose age groups that are well-separated from each other by clustering gait features along with their age labels. We then learn a classifier that classifies the gait features for multiple age groups using a directed acyclic graph support vector machine. Next, we learn an age regression model for each age group using support vector regression with a Gaussian kernel in conjunction with a manifold learning technique, i.e., orthogonal locality preserving projection, to better characterize the gait feature. In the test phase, given a gait feature, it is first classified into an age group and then its age is estimated with the age regression model of the classified age group. Experimental results on a gait database that has the world’s largest population of participants ranging from 2 to 90 years old demonstrate the state-of-the-art performance of the proposed method. |
Year | DOI | Venue |
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2018 | 10.1007/s11042-018-6049-7 | Multimedia Tools Appl. |
Keywords | Field | DocType |
Human age estimation, Age group classification, Support vector regression, Manifold learning | Population,Age groups,Gait,Regression,Pattern recognition,Computer science,Support vector machine,Artificial intelligence,Cluster analysis,Classifier (linguistics),Nonlinear dimensionality reduction | Journal |
Volume | Issue | ISSN |
77 | 21 | 1380-7501 |
Citations | PageRank | References |
1 | 0.35 | 23 |
Authors | ||
5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Xiang Li | 1 | 81 | 40.11 |
Yasushi Makihara | 2 | 1012 | 70.67 |
C. Xu | 3 | 80 | 13.87 |
Yasushi Yagi | 4 | 1752 | 186.22 |
Mingwu Ren | 5 | 168 | 17.44 |