Locality constrained joint dynamic sparse representation for local matching based face recognition

PLoS One. 2014 Nov 24;9(11):e113198. doi: 10.1371/journal.pone.0113198. eCollection 2014.

Abstract

Recently, Sparse Representation-based Classification (SRC) has attracted a lot of attention for its applications to various tasks, especially in biometric techniques such as face recognition. However, factors such as lighting, expression, pose and disguise variations in face images will decrease the performances of SRC and most other face recognition techniques. In order to overcome these limitations, we propose a robust face recognition method named Locality Constrained Joint Dynamic Sparse Representation-based Classification (LCJDSRC) in this paper. In our method, a face image is first partitioned into several smaller sub-images. Then, these sub-images are sparsely represented using the proposed locality constrained joint dynamic sparse representation algorithm. Finally, the representation results for all sub-images are aggregated to obtain the final recognition result. Compared with other algorithms which process each sub-image of a face image independently, the proposed algorithm regards the local matching-based face recognition as a multi-task learning problem. Thus, the latent relationships among the sub-images from the same face image are taken into account. Meanwhile, the locality information of the data is also considered in our algorithm. We evaluate our algorithm by comparing it with other state-of-the-art approaches. Extensive experiments on four benchmark face databases (ORL, Extended YaleB, AR and LFW) demonstrate the effectiveness of LCJDSRC.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms*
  • Biometric Identification / methods
  • Face / anatomy & histology*
  • Humans
  • Image Interpretation, Computer-Assisted / methods*
  • Pattern Recognition, Automated / methods*
  • Reproducibility of Results

Grants and funding

This work is supported by Fund of Jilin Provincial Science & Technology Department (20130206042GX, 20111804), Young scientific research fund of Jilin province science and technology development project (No. 20130522115JH, 201201070, 201201063) and National Natural Science Foundation of China (No. 11271064, 61403078). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.