Iris recognition using class-specific dictionaries. (August 2017)

• Record Type: Journal Article
• Authors: Naseem, Imran; Aleem, Affan; Togneri, Roberto; Bennamoun, Mohammed
• Is Part Of: Computers & electrical engineering. Volume 62(2017)
• Page Start: 178
• Page End: 193
• Publication Date: 2017-08
• Subjects: Iris recognition -- Biometrics -- Inverse problem; Computer engineering -- Periodicals; Electrical engineering -- Periodicals; Electrical engineering -- Data processing -- Periodicals; Ordinateurs -- Conception et construction -- Périodiques; Électrotechnique -- Périodiques; Électrotechnique -- Informatique -- Périodiques; Computer engineering; Electrical engineering; Electrical engineering -- Data processing; Periodicals; Electronic journals; 621.302854
• DOI: 10.1016/j.compeleceng.2015.12.017
• Languages: English
• ISSNs: 0045-7906

Abstract

Graphical abstract: Abstract: In this research, the concept of class-specific dictionaries is proposed for iris recognition. Essentially, the query image is represented as a linear combination of training images from each class. The well-conditioned inverse problem is solved using least squares regression and the decision is ruled in favor of the class with the most precise estimation. An enhanced modular approach is further proposed to counter noise due to imperfect segmentation of the iris region. As such iris images are partitioned and individual decisions of all sectors are fused using an efficient fusion algorithm. The proposed algorithm is compared to the state-of-the-art Sparse Representation Classification (SRC) with Bayesian fusion for multiple sectors. The proposed approach has shown to comprehensively outperform the SRC algorithm on standard databases. Complexity analysis of the proposed algorithm shows decisive superiority of the proposed approach.