The application of UAV remote sensing in natural disasters emergency monitoring and assessment

摘要

Fast acquisition and processing of effective data sources are a heated topic in remote sensing image processing research.Unmanned aerial vehicle (UAV) remote sensing system has the advantages of maneuverability, rapidity and economical,it has become a hot topic in the world. The study analyzes the characteristics of remote sensing image and thecharacteristics of UAV remote sensing system, and refers a variety of images fast processing algorithms to explore therapid remote sensing images stitching and rapid information extraction methods. Based on the analysis of the relevantresearch at home and abroad, this paper draws lessons from some image processing ideas of modern photogrammetry,and proposes a fast image stitching method of UAV remote sensing images based on SURF (Speed Up Robust Features)feature description. This method is applied to UAV remote sensing fast image stitching to achieve high-quality UAVremote sensing images for fast and automatic splicing. The stitching speed of this method is much faster than that ofSIFT (Scale-invariant feature transform) algorithm. And the splicing effect of this method is satisfactory.