Abstract:

This paper improved a fast measurement method of single oblique aerial photograph supported by DEM. According to the difference of position and attitude between images and buildings, the measurement method of single image is studied, and the calculation formulas are deduced. Then verify the accuracy of the algorithm, and analyze the specific impact factors by selecting test area. The experimental result shows that the horizontal and vertical accuracy of the study area is satisfying, which can meet the application needs of fields such as urban planning and management, and will provide experience and reference for urban 3D data acquisition.

Key words: oblique photography, single image measurement, DEM, height measurement