An Efficient Binarization Technique for Fingerprint Images
نویسنده
چکیده
Fingerprint identification is the most prominent method of biometric identification. Here, fingerprint is a widely used form of biometric identification and is robust means of person identification. In this, a set of minutiae points were considered and which characterize the fingerprints by extracting minutiae points from fingerprint under uncontrolled situation and it is a robust binarization process is considered to get correct set of minutiae points. In this, a rough-set based approach for binarization of fingerprint image is presented and maximization of rough entropy and minimization of roughness of the fingerprint images lead to an optimum threshold for binarization. Experimental results show that the proposed method for extracting minutiae is fairly efficient and fast compared to a previous method.
منابع مشابه
Direct gray scale ridge reconstruction in fingerprint images
1 An original technique, based on ridge point detection directly from gray scale ngerprint images, is proposed. Our method avoids serious problems that algorithms which perform binarization of ngerprint images have. Each step can be easily hardware implemented, allowing a relevant speed up of the whole pro-
متن کاملBinarization and Thinning of Fingerprint Images by Pipelining
Two critical steps in fingerprint recognition are binarization and thinning of the image. The need for real time processing motivates us to select local adaptive thresholding approach for the binarization step. We introduce a new hardware for this purpose based on pipeline architecture. We propose a formula for selecting an optimal block size for the thresholding purpose. We also present in thi...
متن کاملFingerprint Binarization using Convex Threshold
A fingerprint identification system is popular and important in biometric identification applications. Its process is composed of two stages: feature extraction and matching. Most fingerprint features include ending points and bifurcation called minutiaes. In this paper, we propose a new fingerprint binarization method based on convex threshold for effective minutiaes extraction. The proposed m...
متن کاملAn Efficient Multi Fingerprint Verification System Using Minutiae Extraction Technique
In the recent decade, the rapid development of biometric technologies for security applications spurred increased interest in both academic research community and industrial sectors. Fingerprint images frequently have poor characteristics, because these traces are captured in crime places and are left on objects of different structure. The quality of the fingerprint images greatly affects the p...
متن کاملA Linear Time Algorithm for Binary Fingerprint Image Denoising Using Distance Transform
Fingerprints are useful for biometric purposes because of their well known properties of distinctiveness and persistence over time. However, owing to skin conditions or incorrect finger pressure, original fingerprint images always contain noise. Especially, some of them contain useless components, which are often mistaken for the terminations that are an essential minutia of a fingerprint. Math...
متن کامل