The Improvement of Surveying and Mapping Accuracy of Oblique Photography in Road and Bridge Construction Under Grid Algorithm Optimization
UAV tilt photography has been applied in the field of surveying and mapping,but there is less research on error analysis and large-scale topographic map mapping accuracy.This paper focuses on the study of large-scale topographic map mapping accuracy of UAV tilt photography,improves the accuracy,and selects Section Ⅲ of Haishan Avenue as the experimental area,generates large-scale topographic maps by constructing a digital three-dimensional model through the UAV tilt photography.The accuracy level of the topographic map generated by UAV tilt photography is quantified.And in response to the problem of poor elevation accuracy in some areas of topographic maps generated by UAV tilt photography,a grid algorithm based on elevation maps is developed based on Java code writing with the aim to improve the elevation accuracy of topographic maps generated by UAV tilt photography.
UAV tilt photographythree-dimensional modelingSmart 3D softwareaccuracy assessment
NETL
NSTL
万方数据
