INF-GAN: Generative adversarial network for illumination normalization of finger-vein images

Jin Seong Hong, Jiho Choi, Seung Gu Kim, Muhammad Owais, Kang Ryoung Park

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

When images are acquired for finger-vein recognition, images with nonuniformity of illumination are often acquired due to varying thickness of fingers or nonuniformity of illumination intensity elements. Accordingly, the recognition performance is significantly reduced as the features being recognized are deformed. To address this issue, previous studies have used image prepro-cessing methods, such as grayscale normalization or score-level fusion methods for multiple recognition models, which may improve performance in images with a low degree of nonuniformity of illumination. However, the performance cannot be improved drastically when certain parts of images are saturated due to a severe degree of nonuniformity of illumination. To overcome these draw-backs, this study newly proposes a generative adversarial network for the illumination normalization of finger-vein images (INF-GAN). In the INF-GAN, a one-channel image containing texture information is generated through a residual image generation block, and finger-vein texture information deformed by the severe nonuniformity of illumination is restored, thus improving the recognition performance. The proposed method using the INF-GAN exhibited a better performance com-pared with state-of-the-art methods when the experiment was conducted using two open databases, the Hong Kong Polytechnic University finger-image database version 1, and the Shandong University homologous multimodal traits finger-vein database.

Original languageEnglish
Article number2613
JournalMathematics
Volume9
Issue number20
DOIs
StatePublished - 2 Oct 2021

Keywords

  • Finger-vein recognition
  • Image restoration
  • INF-GAN
  • Nonuniformity of illumination
  • Residual image generation block

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