期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：1980
卷号：XXIII Part B3
页码：272-283
出版社：Copernicus Publications
摘要：The reliability of a photogrammetric system defines itsquality with respect to gross error detection and location .The elements of the Qvv- matrix are crucial for the internalreliability. A sophisticated blunder test procedure isavailable with the "data-snoouing" technique , which requiresthe diagonal elements of Ovv•For large linear systems , as they usually appear in aerialtriangulation the computation of the complete Ovv-matrix oreven of its diagonal elements (qvv) only becomes very costly .So it is useful to apply approximate diagonal elements ofQvv, which can be obtained from reliability models .These models are developed and the main parameters whichinfluence the qvv-values are investigated.Factors to be considered early in the stage of projectplanning, if a highly reliable photogrammetric system isrequired, are indicated as an important by- product .
