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Human gait identification from extremely low-quality videos : an enhanced classifier ensemble method
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Guan, Yu, Tistarelli, Massimo, Sun, Yunlian and Li, Chang-Tsun (2014) Human gait identification from extremely low-quality videos : an enhanced classifier ensemble method. IET Biometrics, Volume 3 (Number 2). pp. 84-93. doi:10.1049/iet-bmt.2013.0062
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Official URL: http://dx.doi.org/10.1049/iet-bmt.2013.0062
Abstract
Nowadays, surveillance cameras are widely installed in public places for security and law enforcement, but the video quality may be low because of the limited transmission bandwidth and storage capacity. In this study, the authors proposed a gait recognition method for extremely low-quality videos, which have a frame-rate at one frame per second (1 fps) and resolution of 32 × 22 pixels. Different from popular temporal reconstruction-based methods, the proposed method uses the average gait image (AGI) over the whole sequence as the appearance-based feature description. Based on the AGI description, the authors employed a large number of weak classifiers to reduce the generalisation errors. The performance can be further improved by incorporating the model-based information into the classifier ensemble. The authors found that the performance improvement is directly proportional to the average disagreement level of weak classifiers (i.e. diversity), which can be increased by using the model-based information. The authors evaluated the proposed method on both indoor and outdoor databases (i.e. the low-quality versions of OU-ISIR-D and USF databases), and the results suggest that our method is more general and effective than other state-of-the-art algorithms.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects: | Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software | ||||||||
| Divisions: | Faculty of Science > Computer Science | ||||||||
| Library of Congress Subject Headings (LCSH): | Biometric identification, Gait in humans -- Measurement | ||||||||
| Journal or Publication Title: | IET Biometrics | ||||||||
| Publisher: | Institute of Engineering Technology | ||||||||
| ISSN: | 2047-4938 | ||||||||
| Official Date: | June 2014 | ||||||||
| Dates: |
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| Volume: | Volume 3 | ||||||||
| Number: | Number 2 | ||||||||
| Number of Pages: | 9 | ||||||||
| Page Range: | pp. 84-93 | ||||||||
| DOI: | 10.1049/iet-bmt.2013.0062 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Funder: | COST Action | ||||||||
| Grant number: | IC1106 | ||||||||
| Embodied As: | 1 |
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