A Comparative Study of UAV LiDAR and Tilt Photogrammetry Techniques in Complex River Engineering Surveying and Mapping
Since it's difficult for traditional surveying and mapping techniques to obtain effective results in complex river mapping,this paper compares and analyzes the practical effects of UAV LiDAR and tilt photogrammetry.With the analysis of elevation error and measurement results,the advantages and disadvantages of these two methods are clarified.The two methods are deeply integrated,and the matching gross error is effectively reduced by the selection iteration method,which meets the requirements of technology integration.And with the technique fusion of UAV LiDAR and tilt photogrammetry,clear boundary information can be obtained,the image content is richer,the processing time is shorter,and it is more conducive to manual interpretation and application,which meets the work requirements of complex river engineering surveying and mapping.
UAV LiDARTilt PhotogrammetryEngineering Surveying and MappingTechnology Convergence