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Facial Expression Recognition under Partial Occlusion Based on Weber Local Descriptor Histogram and Decision Fusion

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Accession number:
20144300120595
Title: Facial expression recognition under partial occlusion based on Weber Local Descriptor histogram and decision fusion
Authors: Liu, Shuaishi1 Email author liu-shuaishi@126.com; Zhang, Yan1; Liu, Keping1
Author affiliation: 1 School of Electrical and Electronic Engineering, Changchun University of Technology, Changchun, China
Corresponding author: Liu, Shuaishi
Source title: Chinese Control Conference, CCC
Abbreviated source title: Chinese Control Conf., CCC
Issue date: September 11, 2014
Publication year: 2014
Pages: 4664-4668
Article number: 6895725
Language: English
ISSN: 19341768
E-ISSN: 21612927
ISBN-13: 9789881563842
Document type: Conference article (CA)
Conference name: Proceedings of the 33rd Chinese Control Conference, CCC 2014
Conference date: July 28, 2014 - July 30, 2014
Conference location: Nanjing, China
Conference code: 108070
Sponsor: Systems Engineering Society of China; Technical Committee on Control Theory of Chinese Association of Automation
Publisher: IEEE Computer Society
Abstract: In order to solve the problem which the key information of facial expression missed under partial occlusion, this paper proposes a facial expression recognition method based on Weber Local Descriptor (WLD) histogram feature and decision fusion. Firstly, the image is divided into several non-overlapping rectangle regions with equal size and the WLD is used to extract the features of each region. The purpose of that is to extract face image spatial information and to be ready for the subsequent decision fusion. Secondly, each region is further divided into blocks and the histogram of each sub-block is computed and combined as the region features so as to extract the discriminative features accurately as many as possible from each region. Finally, in order to reduce the influence of partial occlusion for facial expression, we design a classifier for the histogram features of each region and the outputs of all classifiers are fused by decision rule to determine the class of test facial expression image. The proposed method achieves better performance in JAFFE database with eyes occlusion and mouth occlusion. Experimental results show that the method is robust to facial expression recognition under partial occlusion. © 2014 TCCT, CAA.
Number of references: 16
Main heading: Face recognition
Controlled terms: Gesture recognition  -  Graphic methods  -  Human computer interaction  -  Image processing
Uncontrolled terms: Decision fusion  -  Discriminative features  -  Expression recognition  -  Facial expression recognition  -  Histogram features  -  Partial occlusions  -  Spatial informations  -  WLD histogram
Classification code: 461.4 Ergonomics and Human Factors Engineering -  716 Telecommunication; Radar, Radio and Television -  741 Light, Optics and Optical Devices -  902.1 Engineering Graphics
DOI: 10.1109/ChiCC.2014.6895725
Database: Compendex
Compilation and indexing terms, © 2015 Elsevier Inc.

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2樓2015-03-09 22:44:52