Touch less-fingerprint-recognition-system (1)
Download as PPT, PDF1 like1,711 views
The document discusses the advancements in fingerprint recognition technology, focusing on both touch-based and touch-less systems. It highlights the security aspects, advantages, and disadvantages of each method, emphasizing that touch-less technology offers improvements in image quality and user experience. The content also outlines the biometrics process, applications in various markets, and the importance of a comprehensive security solution.
Touch less-fingerprint-recognition-system (1)
- 1. Touch Based &Touch-less Fingerprint Recognition System (A New Dimension in Fingerprint Technology) Presented By : Name: Palak Pandoh Branch: MCAr Semester: IVth 7th
- 2. Introduction Biometrics – Expectations and Reality. Fingerprint – What Else? Advantages of Biometrics Processes. Security Aspects Fingerprints Touch-Based Technology Disadvantages of Touch-Based Technology Touch-less Fingerprint Recognition Technology Touch-less Technology Basics Advantages of Touch-less 3D Technology Markets and Applications. Comparative Study Overview
- 4. Biometrics: Biometrics refers to the identification of Humans by their characteristics or traits. Biometrics is used in computer science as a form of identification and access control.
- 5. Expectations & Reality Biometrics is key to solve security challenges of the 21th century #Reality or Fiction? • PRO: – Makes secure identification possible, eliminates weak identification – Unique, constant and always available – Flexible, can be adapted to situation and user group – Can be combined with other systems to increase security – Convenient and User friendly • CONTRA: – Some technologies not mature yet – Market consolidation has just started – Not deterministic, identification based on probabilities Biometrics is just one aspect of a sophisticated security concept!
- 6. Fingerprint – What Else? Fingerprint most adopted technology Fingerprint is unique, constant and can be captured fast & easily. Fingerprint still takes more than 50% of market share! A fingerprint consists of patterns of ridges and valleys on the surface of a fingertip.
- 7. Biometric Processes : Enrollment (User registration) – User data registration and capturing of biometric reference data ('Reference Template') – crucial importance for overall system performance. Matching (User identification or verification) – Comparison of live captured sample with reference data. – Verification (1:1) • requires second token to pre-select user list. • comparison against pre-selected biometric data only. • lower requirements regarding system accuracy and speed. – Identification (1:N) • no pre-selection. • comparison against reference data of all users. • high requirements regarding system accuracy and speed.
- 8. Security Aspects A system is as secure as its weakest part! – Biometrics is part of a total security solution – Must not limit system security Risk factors: • Data Security – Secure data storage – Secure data transfer – Can biometric data be interpreted and repeated? – Can biometric data be revoked? • Process Security – Is biometric process stable? – Is biometric process safe against spoofing?
- 9. Fingerprints A fingerprint consists of patterns of ridges and valleys on the surface of a fingertip. Each individual has fingerprint which is different from the other. Fingerprint recognition system is an identification system that can be an Automated Fingerprint Identification System (AFIS) or a Non-automated Fingerprint Recognition System.
- 10. Touch-Based Fingerprint Recognition System Most of the sensors available today use “touch” method since it is simple and little training is required. These touch sensors acquire fingerprint images as the user’s fingerprint is contacted on a solid flat sensor. Both the sensor method and ink-technique requires the person to press his/her finger against a flat rigid surface. For this reason they are known as touch-based methods. Conventional fingerprint systems are simple and require less processing as compared to the touch-less fingerprint recognition system, but they suffer from several problems like hygienic user interface, maintenance and latent fingerprints that are invisible from naked eyes and important for law enforcement agencies.
- 11. Disadvantages of Touch Based Sensors Problem of contamination which occurs because of placing the fingertip over the same interface which is already used by other. This produces a low quality fingerprint image. Due to contact pressure, which creates physical distortions which are usually non-linear in arbitrary direction and strength. Moreover, the distortion occurs globally, while its deformation parameters could be different locally in a single fingerprint image. Figure shows the fingerprint image of one fingertip but with different minutiae because of physical pressure.
- 12. Touch-less Technology Basics 3 cameras surrounding the finger Finger imaging instead of Finger printing Full-3D and Approx-3D variants, depending on application Full-3D to create rolled equivalent fingerprints Compliant to 2D technology (touch-based) Approx-3D to extend and optimize center image
- 13. Advantages of Touch-less 3D Technology Superior image quality - No Failure-To-Enroll - Able to handle critical fingers Unparallel image stability – Non-intrusive capturing process – Almost not affected by finger condition Larger capture area – Full-3D is able to provide almost nail-to-nail images – Approx-3D captures significantly bigger area than touch sensors – More indications available than just fingerprint Build-in user guidance – Self-learning experience – Avoids sensor misuse Mature Life Finger Detection Consequence: Better matching performance Higher Process Security
- 14. Markets and Applications Access Control and Time & Attendance – Early adopter of new technologies – Small to medium sized applications – Targets mainly on single factor identification – Networked environment Biometric (sub)system required, rather than sensors Focus on Process Security Civil, Governmental and Criminal ID – Long term business – Large sized applications – Targets mainly on AFIS infrastructures – PC based environment High-Quality biometric sensors required Focus on Data Security
- 15. The main modules of a fingerprint recognition system are: a) fingerprint sensing, in which the fingerprint of an individual is acquired by a fingerprint scanner to produce a raw digital representation; b) preprocessing, in which the input fingerprint is enhanced and adapted to simplify the task of feature extraction; c)feature extraction, in which the fingerprint is further processed to generate discriminative properties, also called feature vectors; and d) matching, in which the feature vector of the input fingerprint is compared against one or more existing templates. The templates of approved users of the biometric system, also called clients, are usually stored in a database. Clients can claim an identity and their fingerprints can be checked against stored fingerprints. Steps Involved:
- 16. Thank You.