Multispectral image fusion for illumination-invariant palmprint recognition

PLoS One. 2017 May 30;12(5):e0178432. doi: 10.1371/journal.pone.0178432. eCollection 2017.

Abstract

Multispectral palmprint recognition has shown broad prospects for personal identification due to its high accuracy and great stability. In this paper, we develop a novel illumination-invariant multispectral palmprint recognition method. To combine the information from multiple spectral bands, an image-level fusion framework is completed based on a fast and adaptive bidimensional empirical mode decomposition (FABEMD) and a weighted Fisher criterion. The FABEMD technique decomposes the multispectral images into their bidimensional intrinsic mode functions (BIMFs), on which an illumination compensation operation is performed. The weighted Fisher criterion is to construct the fusion coefficients at the decomposition level, making the images be separated correctly in the fusion space. The image fusion framework has shown strong robustness against illumination variation. In addition, a tensor-based extreme learning machine (TELM) mechanism is presented for feature extraction and classification of two-dimensional (2D) images. In general, this method has fast learning speed and satisfying recognition accuracy. Comprehensive experiments conducted on the PolyU multispectral palmprint database illustrate that the proposed method can achieve favorable results. For the testing under ideal illumination, the recognition accuracy is as high as 99.93%, and the result is 99.50% when the lighting condition is unsatisfied.

MeSH terms

  • Algorithms
  • Biometric Identification / methods*
  • Humans
  • Learning
  • Lighting*

Grants and funding

This work is supported by the National Natural Science Foundation of China (No. 61673316; http://www.nsfc.gov.cn/), the special grants from the Major Science and Technology Foundation of Guangdong Province (No. 2015B010104002; http://zdkjzx.gdstc.gov.cn/), and the Fundamental Research Funds for the Central Universities. XMZ is the receiver of all the mentioned funds. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.