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Fingerprint SDK 2009 Developer's Manual

http://www.griaulebiometrics.com/page/pt-br/book/export/html/361

Fingerprint SDK 2009 Developer's Manual

Fingerprint SDK 2009 Developer's Manual Griaule Biometrics 2009

Griaule Biometrics Fingerprint SDK and GrFinger are trademarks of Griaule Biometrics LTDA. The names of actual companies and products mentioned herein may be the trademarks of their respective owners.

Manual ConventionsIcons Definitions and Acronyms

IconsThe icons below indicate that a section applies to a specific integration type: DLL, ActiveX or Java application/applet.

This icon indicates that the section applies to Fingerprint SDK DLL only.

This icon indicates that the section applies to Fingerprint SDK ActiveX component only.

This icon indicates that the section applies to Fingerprint SDK Java for Windows only.

The icons below are used to get reader's attention to any important information.

This icon usually gives hints to make something easier: learning, understanding, programming, deploying, etc.

This icon is used to indicate a very important section that should not be skipped.

This icon indicates a potential risk to system integrity, a risk of malfunctioning, etc. The section must not be skipped and you should read it carefully.

Definitions and AcronymsIDE - An Integrated Development Environment (IDE) is a software that assists programmers to develop software. It normally consists of a source code editor, a compiler and/or interpreter, build-automation tools, and (usually) a debugger. The Fingerprint SDK ActiveX Component can be used in many IDEs, like Microsoft Visual Studio and Borland Delphi. DLL - A Dynamic Link Library (DLL) is a shared library used in Microsoft Windows. A single instance of a shared library can be used by many running programs without being replicated for each program, saving RAM and disk space. The Fingerprint SDK library can be used as a Windows DLL. SDK - A Software Development Kit (SDK) is a set of development tools, documents, libraries and/or sample codes that allows a programmer to create applications for a certain software package. The Fingerprint SDK allows a programmer to create applications with biometric capabilities. FRR - The False Rejection Rate (FRR) is defined as the percentage of identification instances in which false rejection occurs. It's normally expressed as a probability. FAR - The False Acceptance Rate (FAR) is the measure of the likelihood that the biometric security system will incorrectly accept an access attempt by an unauthorized user. DPI - The Dots per Inch (DPI) measure indicates the resolution of images. The more dots per inch, the higher the resolution. The DPI is an important information about fingerprint images, affecting both the image quality and matching accuracy. Template - A template is the feature set extracted from a fingerprint image. The verification and identification functions in Fingerprint SDK library works only with templates. Once the template is extracted the library doesn't need the fingerprint image anymore for any verification or identification process. Callback - The callback scheme is used in event-driven programs where the program registers a function (a 'callback handler') to handle a certain event. The program does not call the handler directly: when the event

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Fingerprint SDK 2009 Developer's Manual

http://www.griaulebiometrics.com/page/pt-br/book/export/html/361

occurs, another program or library or even the operating system calls the handler, passing it arguments which describe the event. ActiveX - This is the Microsoft specification for reusable components. ActiveX is based on the Component Object Model (COM), an open standard that specifies how components interact and interoperate. Somewhat like a DLL, ActiveX allows packaging code to create highly reusable components. regsvr32 - This is a tool to register and unregister Object Linking and Embedding (OLE) controls, such as DLLs and ActiveX controls. For further info about this tool, check the Microsoft's regsvr32 page. JNI - The Java Native Interface (JNI) is a programming framework that allows Java code running in the Java Virtual Machine (JVM) to call and be called by native applications (programs specific to a hardware and operating system platform) and libraries written in other languages, such as C, C++ and assembly. Java applet - A Java applet is a Java program that can be included as part of a web page.

Getting StartedFingerprint SDK is a fingerprint recognition library that comes packaged with a Software Development Kit (SDK), allowing you to integrate biometrics in a wide range of applications. Thanks to its support for several programming languages, richness of code samples, and its thorough documentation, you'll start developing your application in a matter of minutes. Quick Start Guide Features What's New on Fingerprint SDK About Fingerprint SDK Editions Upgrading from GrFinger 4.2 to Fingerprint SDK FingerCap USB Driver Licensing Support

Quick Start GuideDownloadingDownload a trial version of Fingerprint SDK at www.griaule.com, in 'Downloads' section.

InstallingTo install Fingerprint SDK, run the installation program and follow the on-screen instructions.

Installing your fingerprint readerCheck the Fingerprint Readers Installation section in this manual.

Drivers

Folders OverviewCheck the SDK Folders Structure section in this manual.

Getting licensesCheck the Licensing section in this manual.

Developing using Fingerprint SDKThe first step to start developing with Fingerprint SDK is choosing between Fingerprint SDK DLL, ActiveX or Java. All formats have the same functionalities, so choose the most appropriate for your needs, programming environment and skills. Next, check this manual and the sample codes to learn what you need to build your application.

Drivers Orcanthus Lbp

A good starting point is copying and modifying the SDK samples.

Deploying a Fingerprint SDK based applicationCheck the Deploying a Fingerprint SDK Based Application section in this manual.

FeaturesTechnical Characteristics Fingerprint Readers Support Programming Languages Support Sample Codes Quality One-to-many Identification Licensing

Technical CharacteristicsCaptureDetects fingerprint readers plug/unplug; Automatic finger detection; Supports BMP files for fingerprint image saving/loading; Maximum image size of 1280 x 1280 pixels; Minimum image size of 50 x 50 pixels; Maximum resolution of 1000 DPI; Minimum resolution of 125 DPI;

ExtractionAverage extraction time of 100ms*; Maximum image size of 500 x 500 pixels**; Minimum image size of 50 x 50 pixels; Average template size of 400 bytes*;

Matching

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Fingerprint SDK 2009 Developer's ManualIdentification speed (IDENTIFICATION EDITION): up to 35000/s*** Identification speed (VERIFICATION EDITION): up to 100/s* *** Verification speed (IDENTIFICATION EDITION): up to 100/s* *** Verification speed (VERIFICATION EDITION): up to 100/s* *** Notes: * Images of 300 x 300 pixels. Machine: Pentium4 2.8GHz 512MB. ** Larger images are cropped. *** Images of 100 x 100 pixels. Machine: Pentium4 2.8GHz 512MB.

Drivers Orcanthus Drivers

http://www.griaulebiometrics.com/page/pt-br/book/export/html/361

Fingerprint Readers SupportUsually the SDKs provided by the fingerprint readers manufacturers support only their own devices. The support for multiple readers in Fingerprint SDK allows you to choose the more suitable reader for your needs. It also makes the deployment of such devices easier and assures that you will be able to choose the one that fits your customer's needs even after your application deployment. Supported Fingerprint Readers Microsoft Fingerprint Reader Microsoft Wireless IntelliMouse Explorer with Fingerprint Reader Microsoft Optical Desktop with Fingerprint Reader DigitalPersona U.Are.U 4000 DigitalPersona U.Are.U 4000B Testech Bio-I CYTE Secugen Hamster III M2SYS M2-S Fingerprint Reader Biotouch / Futronic FS80 Nitgen Hamster I / Hamster II Certis Image Orcanthus Crossmatch V250 / V300 / V300 LC / V300 LC2 / V500 Fingerprint SDK multiple readers support allows using on a single machine, and at the same time, one Crossmatch device, up to 127 Testech devices, one Secugen device or one Nitgen device, one Certis device, up to 127 M2SYS devices, up to 127 Futronic devices, up to 127 DigitalPersona devices and up to 127 Microsoft devices.

Programming Languages SupportMost SDKs provide a cumbersome DLL as their unique interface, needing you to create import files for the language you're using, among other obstacles. Fingerprint SDK supports multiple programming languages, including Java (Windows only), Delphi, Visual Basic 6, C++, C++.NET, C#, VB.NET, VBA and Visual FoxPro 8. ActiveX, DLL and Java components are available for Windows platform.

Sample CodesThe Fingerprint SDK comes packaged with fifteen detailed and complete application samples, along with their source code, in several programming languages. The samples cover all Fingerprint SDK functions and provide an easy starting point for development.

QualityGriaule's fingerprint recognition algorithm was successfully tested among the world's best fingerprint recognition systems, on a test held by the United States National Institute of Standards and Technology (NIST) in 2003. The Griaule fingerprint recognition algorithms (P066) get the first position of the average ERR in FVC 2006. The FVC (Fingerprint Verification Competition) is the worlds largest competition for fingerprint verification algorithms.

One-to-many IdentificationMost solutions offer only one-to-one verification or one-to-little identification. Fingerprint SDK is capable of making unlimited one-to-many i





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