Encyclopedia of Biometrics

2015 Edition
| Editors: Stan Z. Li, Anil K. Jain

Fusion, Sensor Level

  • Afzel Noore
  • Richa Singh
  • Mayank Vasta
Reference work entry
DOI: https://doi.org/10.1007/978-1-4899-7488-4_156

Synonyms

Fusion, data level; Fusion, image level

Definition

Sensor level fusion combines raw biometric information that can account for interclass and intra-class variability and facilitate decision making based on the fused raw information. A typical sensor level fusion algorithm first integrates raw biometric data either obtained from different viewpoints (e.g., mosaicing several fingerprint impressions) or obtained from different sensors (e.g., multimodal biometric images). The integrated data is then processed and discriminatory biometric features are extracted for matching. This level of fusion can be operated in both verification and identification modes. Few examples of sensor level fusion are fingerprint mosaicing, multispectral face image fusion, and multimodal biometric image fusion.

Introduction

The concept of biometric information fusion is motivated from classical multi-classifier systems that combine information from different sources and represent using a single entity....
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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Afzel Noore
    • 1
  • Richa Singh
    • 2
  • Mayank Vasta
    • 3
  1. 1.West Virginia UniversityMorgantownUSA
  2. 2.Image Analysis and Biometrics Lab, IIIT-DelhiNew DelhiIndia
  3. 3.Image Analysis and Biometrics Lab, IIIT-DelhiNew DelhiIndia