Fingerprint Ridge Distance Estimation: A Mathematical Modeling
نویسندگان
چکیده
منابع مشابه
Fingerprint Ridge Distance Estimation: A Mathematical
In this paper, fingerprint image is mathematically modeled by using a 2D sinusoidal function in a local window of size 32x32. The estimated ridge distance is then found by using the Levenberg-Marquardt gradient descent method. From test images, it has been found that the error percentage is 5% or less for fingerprint images of good to moderate quality with ridge distances between five and 20 pi...
متن کاملAn Efficient Fingerprint Ridge Distance Estimation Using Typical Image Blocks
The average ridge distance of fingerprint images is a very important parameter for fingerprint image enhancement, which will greatly affect the performance of fingerprint recognition. A method of efficient ridge distance estimation based on typical image blocks is proposed. First, we obtain some typical candidate image blocks through the initial selection according to the orientation curvature ...
متن کاملFingerprint ridge distance computation methodologies
The average ridge distance of "ngerprint images is used in many problems and applications. It is used in "ngerprint "lter design or in identi"cation and classi"cation procedures. This paper addresses the problem of local average ridge distance computation. This computation is based on a two-step procedure: "rst, the average distance is de"ned in each signi"cant portion of the image and then thi...
متن کاملRidge Distance Estimation in Fingerprint Images: Algorithm and Performance Evaluation
It is important to estimate the ridge distance accurately, an intrinsic texture property of a fingerprint image. Up to now, only several articles have touched directly upon ridge distance estimation. Little has been published providing detailed evaluation of methods for ridge distance estimation, in particular, the traditional spectral analysis method applied in the frequency field. In this pap...
متن کاملFingerprint Ridge Orientation Modeling
In the last decade, automatic fingerprint based personal authentication has matured to the point where it can be successfully applied in a myriad of applications. These applications are ranging from the low cost door opener for private use up to the critical government application ensuring national security. One common ground of all this fingerprint based personal authentication systems is the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Computer Applications
سال: 2015
ISSN: 0975-8887
DOI: 10.5120/ijca2015906308