Remote Sensing Orthophotoquad (RSDOQ) has been widely used in the area of topographic map making and its revision
natural resource and environment surveying and monitoring
natural disaster mitigation and city planning etc.. However
for the generation of RSDOQ
DEM (Digital Elevation Model)is still needed to solve the issues of relief displacement for high resolution image (such as SPOT and IRS). According to the characteristics of aerial image and space remote sensing image
and the difference among topographic relief
this paper proposed and developed new methods of RSDOQ generation without using DEM. The presented methods include integrated geometric rectification in flat area
locally adaptive geometric rectification in medium relief area
and point to point geometric rectification in high relief area. Only DRG (Digital Raster Graphics)
the scanned topographic man after geometric correction
is needed in our developed methods. Practical software has been developed and it will be used for the generation of digital orthophoto model (DOD) from remote sensing image in China.