FINAL REPORT OF W.G. IV/4: STANDARDS FOR PHOTOGRAMMETRIC PROCEDURES

摘要

This report outlines the guidelines developed by the V.G. on the establishment and verification of data quality standards. The approach followed was to first identify the main production lines used in the photogrammetric collection of digital GIS data and then to review all possible influencing factors involved. On the basis of these influencing factors and error sources, data quality standards are drawn up, which include the elements of data history, positional accuracy, data base completeness, logical consistency, data security and data decay rate.