A Method for Extracting Surface Feature Points from Aerial Photo Based on UAV Remote Sensing Technology

摘要

#$%^&*AU2020101472A420200827.pdf#####Abstract of Description This invention discloses a method for extracting surface feature points from aerial photo based on UAV remote sensing technology, including: obtain aerial photo; extract the center longitude and latitude information of aerial photo; match the aerial photo to the position of longitude and latitude information according to the center longitude and latitude information, satellite image information and base map information; identify the type of the surface features on the satellite image based on the geographically calibrated aerial photo; extract the surface feature points from the aerial photo with the type of the surface features identified. This invention can complete the extraction process of surface feature points more quickly, and provide a labor-saving, materialsaveing, money-saving and effective method for future large-scale UAV remote sensing processing technology.Drawings of Description S1 Obtain aerial photo S2 Extract the center longitude and Ilatitude mfiormo of aerial S photo ahbrate the aerial photo the posston ot ongitude and latitude S3 jnfomo geographical according to the center longitude and attitude information and base ma information of the aerial photo Identify the type of the surface features on the satellite image S4 based on the geographically calibrated aerial photo Extract the surface feature points from the aerial photo with the S4 type of the surface features identified Figure 1 II I I I I I I N 9 N W- - - E 28° N - •27° N UAV photos e 26 , 0 20 40 80 120 160 250 N 103° E 104° E 5° E 106 E 1070 E 108° E 1090 E 1100 E II I I I I I I Figure 2 1/3