With the rapid increase of aerial data acquisition using large-format digital aerial sensors during the last few years, there comes an urgent need to describe the geometrical accuracy of these sensors and their ability to obtain mapping accuracies according to different industry standards. This paper will deal with one kind of sensor, the pushbroom technology-based aerial sensor manufactured by Leica Geosystems. Results from 5 years of operation and several projects with map scales ranging from large (1:1,200) to medium (1:12,000) using the Leica ADS40 sensor, have demonstrated the capability of such sensors to capture highly accurate imagery suitable for the different map products just mentioned. The accuracy of the final derived products met the three major map accuracy standards, namely, the National Map Accuracy Standard (NMAS), the American Society of Photogrammetry and Remote Sensing (ASPRS), and the National Standard for Spatial Data Accuracy (NSSDA).
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