ISO INTERNATIONAL STANDARD 16610-71 First edition 2014-09-15 Geometrical product specifications (GPS) 一 Filtration - Part 71: Robust areal filters: Gaussian regression filters Spécification géométrique des produits (GPS) - Filtrage - Partie 71: Filtres surfaciques robustes: Filtres de regression gaussiens Reference number IS0 16610-71:2014(E) LSO @ IS0 2014 I without license from IHS Not for Resale IS0 16610-71:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56:CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax +4122 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved No reproductic networking permited without license from IHS Not for Resale IS0 16610-71:2014(E) Contents Page Foreword ..iv Introduction. ...vi 1 Scope. 2 Normative references ..1 3 Terms and definitions ..1 4 Robust planar Gaussian regression filter .2 4.1 General. .2 4.2 Weighting function .2 4.3 Filter equation. .3 4.4 Transmission characteristics. .5 5 Robust cylindrical Gaussian regression filter .5 5.1 General .5 5.2 Weighting function .5 5.3 Filter equation .6 5.4 Transmission characteristics .7 6 Nesting Index for planar and cylinder surfaces ..8 7 Filter designation ..8 Annex A (informative) Regression filter Annex B (informative) Examples .11 Annex C (informative) Relationship to the filtration matrix model ..16 Annex D (informative) Relation to the GPS matrix model ..18 Bibliography .20 iii se with IS thout license from IHS Not for Resale