Assessment of accuracy of geographical data produced by the digital photogrammetric technology

Nguyễn Thị Bích Ngọc

Abstract

Technology applied to surveying for capture of geographic data and mapping in the past few years has significantly been changed, many new technologies have been put into use in Vietnam. Meanwhile, in some technical standards, the assessment of product quality still applies according to the old regulations. The paper introduces the results from the study on scientific and practical basis to propose innovations to assess the accuracy of topographic survey, with special emphasis on the digital photogrammetric technology