ISO INTERNATIONAL STANDARD 16610-60 First edition 2015-10-01 Geometrical product specification (GPS) Filtration - Part 60: Linear areal filters Basic concepts Speécification géométrique des produits (GPS) - Filtrage Partie 60: Filtres surfaciques linéaires - Concepts de base Reference number IS0 16610-60:2015(E) SO International Organization for Standardization @ IS0 2015 Institute of S dardization5956617 ted without license from IHS IS0 16610-60:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS02015,PublishedinSwitzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Intenationaibr PrganizationforStandardization Not for Resale, 2015/11/30 07:14:55 etworking permitted without license from IHS IS0 16610-60:2015(E) Contents Page Foreword ..iv Introduction. ...vi 1 Scope. 2 Normative references ..1 3 Terms and definitions ..1 4 Basic concepts .3 4.1 General .3 4.2 Separable weighting functions .3 4.3 Discrete representation of data 4 4.4 Discrete representation ofthe linear areal filter ..4 4.5 Discrete representation of the weighting function .5 5 Linear areal filters .7 5.1 Filter equations .1 5.2 Discrete convolution .8 5.3 Transfer function. 5.4 Separable filter banks ..11 Annex A (informative) Concept diagram ..13 Annex B (informative) Relationship to the filtration matrix model ..14 Annex C (informative) Relationship to the GPS matrix model ..15 Bibliography ..16 iii see=Zhejiang Institute of Standardization 5956617 vided by IHS underI thout license from IHS