Joint Sparse Representation for Robust Multimodal Biometrics Recognition
Abstract
Traditional biometric recognition systems rely on a single biometric signature for authentication. While the advantage of using multiple sources of information for establishing the identity has been widely recognized, computational models for multimodal biometrics recognition have only recently received attention. We propose a novel multimodal multivariate sparse representation method for multimodal biometrics recognition which represents the test data by a sparse linear combination of training data, while constraining the observations from different modalities of the test subject to share their sparse representations. Thus, we simultaneously take into account correlations as well as coupling information between biometric modalities. We modify our model so that it is robust to noise and occlusion. A multimodal quality measure is also proposed to weigh each modality as it gets fused. Furthermore, we also kernelize the algorithm to handle non-linearity in data. The optimization problem is solved using an efficient alternative direction method. Various experiments show that our method compares favorably with competing fusion-based methods.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2012
- Accession Number
- ADA572793
Entities
People
- Nasser M. Nasrabadi
- Rama Chellapa
- Sumit Shekhar
- Vishal M. Patel
Organizations
- United States Army Research Laboratory