ISO/IEC INTERNATIONAL STANDARD 29141 First edition 2009-12-01 Information technology Biometrics - Tenprint capture using biometric application programming interface (BioAPI) Technologies de I'information - Biométrie — Saisie de <Tenprint》 a I'aide de I'interface de programmation d'application biometrique (BioAPI) Reference number ISO/IEC 29141:2009(E) IEC ISO @ISO/IEC2009 ISO/IEC 29141:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below COPYRIGHTPROTECTEDDOCUMENT ISO/IEC2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, isO's memberbody in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO/IEC 2009 - All rights reserved ISO/IEC 29141:2009(E) Contents Page Foreword Introduction. .vi 1 Scope 2 Conformance 3 Normative references 4 Terms and definitions, 5 Abbreviated terms 6 Requirements..... 7 BioAPI function calls... 7.1 BioAPI_ControlUnit(). 7.1.1 7.1.2 Function definition 7.1.3 Parameters 7.2 BioAPI_Capture() 7.2.1 7.2.2 Function definition. 7.2.3 Parameters. 7.2.4 Additional error return codes.. 7.3 BioAPI_QueryUnits(). 7.3.1 Usage... 7.3.2 Function definition . 7.3.3 Parameters 7.3.4 BioAPI_UNIT_SCHEMA.. 8 Capture control blocks (CCB) 9 Record types and fields 9.1 Control and required fields.. 9.2 Image height and width.... 9.3 11 9.4 Amputated or bandaged fingers 9.4.1 Type-4 records... 9.4.2 Type-14 records. 9.5 Capture resolution..... 12 9.6 Image compression... 12 9.7 Selecting images to be captured 12 9.8 Calculation of finger segment position.. 9.9 Segmentation quaity .... 9.10 Image quality... 13 9.10.1 General 9.10.2 Setting quality thresholds 13 9.11 Bits per pixel... 14 9.12 Date printed. 14 9.13 Image capture equipment. 10 Returned BIR. 14 10.1 10.2 BDB format. .15 11 Error codes .15 ISO/IEc 2009-All rights reserved ili