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Dictionary Integration using 3D Morphable Face Models for Pose-invariant Collaborative-representation-based Classification

Song, X, Feng, Zhenhua, Hu, G, Kittler, Josef and Wu, X-J (2018) Dictionary Integration using 3D Morphable Face Models for Pose-invariant Collaborative-representation-based Classification IEEE Transactions on Information Forensics & Security, 13 (11). pp. 2734-2745.

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The paper presents a dictionary integration algorithm using 3D morphable face models (3DMM) for poseinvariant collaborative-representation-based face classification. To this end, we first fit a 3DMM to the 2D face images of a dictionary to reconstruct the 3D shape and texture of each image. The 3D faces are used to render a number of virtual 2D face images with arbitrary pose variations to augment the training data, by merging the original and rendered virtual samples to create an extended dictionary. Second, to reduce the information redundancy of the extended dictionary and improve the sparsity of reconstruction coefficient vectors using collaborative-representation-based classification (CRC), we exploit an on-line class elimination scheme to optimise the extended dictionary by identifying the training samples of the most representative classes for a given query. The final goal is to perform pose-invariant face classification using the proposed dictionary integration method and the on-line pruning strategy under the CRC framework. Experimental results obtained for a set of well-known face datasets demonstrate the merits of the proposed method, especially its robustness to pose variations.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Song, X
Hu, G
Wu, X-J
Date : 3 May 2018
Funders : EPSRC
DOI : 10.1109/TIFS.2018.2833052
Copyright Disclaimer : © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
Uncontrolled Keywords : Collaborative-representation-based classification, 3D morphable face model, dictionary integration, face classification, virtual training samples.
Depositing User : Melanie Hughes
Date Deposited : 20 Apr 2018 08:01
Last Modified : 11 Dec 2018 11:24

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