Fingerprint Quality Evaluation in a Novel Embedded Authentication System for Mobile Users

Figure 4

The proposed architecture evaluates the fingerprint image quality level. Fingerprint quality evaluator module is composed of image blocks analyzer submodule, indexes calculator submodule, and quality level evaluator submodule. The Image Block Analyzer submodule is composed of Max Min Level Calculator submodule, Orientation Certainty Level Calculator submodule, Average Calculator submodule, Variance Calculator submodule, Block Analyzer submodule, and Fingerprint Center Calculator submodule.