نتایج جستجو برای: mems fingerprint

تعداد نتایج: 23408  

2007
HU Jin TIAN Jie CHEN Xin-Jian YANG Xin SHI Peng

A synthetic fingerprint generation method is presented and implemented in this paper. A new combination model for the orientation field of fingerprint is applied to generate more realistic fingerprint direction map, and a new expression of the fingerprint density map is presented. Then a modified Gabor filter is used for ridge pattern generation. This method consists of two main processes: Firs...

2011
R. Suguna P. Anandhakumar

Biometric features such as face, iris, voice, retina, handwriting and fingerprint plays an important role in security for authentication. Among biometrics, fingerprint systems have been one of most widely researched and deployed because of their easy access and low price of fingerprint sensors. Nowadays, for personal identification automatic fingerprint recognition is preferred due to their rel...

2009
Brankica M. Popović

Extensive research of automatic fingerprint identification system (AFIS), although started in the early 1960s, has not yet give the answer to reliable fingerprint recognition problem. A critical step for AFIS accuracy is reliable extraction of features (mostly minutiae) from the input fingerprint image. However, the effectiveness of a feature extraction relies heavily on the quality of the inpu...

Journal: :IJBM 2008
M. Usman Akram Anam Tariq Shoab Ahmad Khan Sarwat Nasir

Automatic Fingerprint Identification Systems (AFIS) are widely used for personal identification due to uniqueness of fingerprints. Minutiaebased fingerprint matching techniques are normally used for fingerprint matching. Fingerprint matching results and their accuracy depends on presence of valid minutiae. In this paper, we present a new technique for fingerprint image post-processing. This pos...

Journal: :JOIV : International Journal on Informatics Visualization 2020

Journal: :Journal of Signal and Information Processing 2012

2014
Pallavi Chauhan Amit Kumar

The purpose of this research paper is to define a critical step in studying the statistics of fingerprint minutiae to reliably extract minutiae from the fingerprint images. It is necessary to employ the image enhancement techniques prior to minutiae extraction to obtain a more reliable estimate of the minutiae locations. Thus, fingerprint Image enhancement is to make the image clearer for easy ...

2010
Andrej Kisel

This paper presents a fingerprint synthesis method that can generate a fingerprint with predefined minutiae points. Fingerprint type is chosen randomly and singular points positions and quantities are chosen randomly according to the fingerprint type. Orientation map is generated using fingerprint orientation model. Frequency map is generated. Initial image with drawn minutiae points that are o...

2013
HONGXIA WANG JINFENG LI YONG QIU

A perceptual fingerprint hashing method is proposed for audio authentication in this paper. First, the biologic fingerprint image is divided into overlapping rectangle blocks by randomly using a chaotic sequence, and then the gravity center of each block is calculated. Finally, the perceptual Hashing value is generated based on the gravity center of each block. To authenticate the speech identi...

2014
A. Tirupathi Rao N. Pattabhi Ramaiah Krishna Mohan

Automated latent fingerprint recognition has gained a lot of attention from the law enforcement agencies to identify the suspects. Even though the fingerprint technology is more advanced, still there are many latent cases pending all over the world, due to lack of automated latent fingerprint recognition and also due to inadequate feature details because of smudged data and partial fingerprints...

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