Designation:E2544−11aStandardTerminologyforThree-Dimensional(3D)ImagingSystems1ThisstandardisissuedunderthefixeddesignationE2544;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisterminologycontainscommonterms,definitionsofterms,descriptionsofterms,nomenclature,andacronymsassociatedwiththree-dimensional(3D)imagingsystemsinanefforttostandardizeterminologyusedfor3Dimagingsystems.1.2Thedefinitionsofthetermspresentedin3.1areob-tainedfromvariousstandarddocumentsdevelopedbyvariousstandardsdevelopmentorganizations.Theintentisnottochangetheseuniversallyaccepteddefinitionsbuttogather,inasingledocument,termsandtheirdefinitionsthatmaybeusedincurrentorfuturestandardsfor3Dimagingsystems.1.2.1Insomecases,definitionsofthesametermfromtwostandardshavebeenpresentedtoprovideadditionalreference.Thetextinparenthesestotherightofeachdefinedtermisthename(and,insomecases,thespecificsection)ofthesourceofthedefinitionassociatedwiththatterm.1.3Thedefinitionsin3.2arespecifictermsdevelopedbythiscommitteefor3Dimagingsystems.Sometermsmayhavegenerallyaccepteddefinitionsinaparticularcommunityoraredefinedinexistingstandards.Ifthereareconflictingdefinitions,ourpreferenceistoadapt(modify)theISOstandard(ifavailable)forthisstandard.1.4Adefinitioninthisterminologyisastatementofthemeaningofawordorwordgroupexpressedinasinglesentencewithadditionalinformationincludedinnotesordiscussions.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.NOTE1—Thesubcommitteeresponsibleforthisstandardwillreviewdefinitionsonafive-yearbasistodetermineifthedefinitionisstillappropriateasstated.Revisionswillbemadewhendeter...
