Comparison and Application of Two Large Scale Mapping Methods Using UAV Platform in Different Photography Modes
Two main methods for large-scale topographic mapping are vertical aerial photogrammetry and oblique aerial naked-eye 3D mapping based on unmanned aerial vehicle(UAV)platforms.By studying and comparing these two mapping methods,their respective advantages and disadvantages were summarized.For areas with fewer buildings in the surveyed region,the vertical aerial photo-grammetry method was utilized to enhance work efficiency in topographic mapping.Conversely,for areas with a higher concentration of buildings,the oblique aerial naked-eye 3D mapping method was adopted to avoid tedious corrections of eaves.In order to capture elements that are difficult to dis-cern or inconvenient to collect in a three-dimensional real scene model,the vertical aerial photo-grammetry method was also utilized as a supplementary approach,thus reducing field surveying and supplemental mapping work.In the 1∶500 topographic mapping project of the urban planning area in sangri county,Tibet autonomous region,a comprehensive combination of the aforementioned two methods was successfully employed,resulting in a reduction of over 80%in field surveying and sup-plemental mapping workload.This approach significantly reduced labor intensity while improving op-erational efficiency and quality.
万方数据
维普
