The purpose of this tutorial is to generate an orthorectified image using Palsar-2 data.
Because of its all-weather and all-day monitoring capabilities, Radar remote sensing offers a number of advantages for Earth-surface and feature observation. Radar sensors can see through cloud and rain and at night, allowing for remote observation at any time.
Some features, such as ice, ocean waves, and geological structures can often be seen better in radar images than in optical images. Over the years, radar remote sensing has provided comprehensive, timely, and accurate information of the Earth’s surface.
Due to the unique nature of radar systems, specific tools are required to extract useable information from the data. The comprehensive radar functions in Geomatica allow you to fully exploit the power of radar for use in a wide variety of applications.
- Open the Geomatica OrthoEngine application
- From the OrthoEngine Toolbar click File > New
- The project Information window opens.
- Enter a Filename for the project. Browse to your destination folder with the Browse Name the project and enter a description.
- Select Radar Satellite Modelling as the Math Modeling Method
- Select Radar Specific Model under Options
- Click OK
- The Set Projection window will open up. Click Cancel to close this window. The projection information will automatically be set once you add your first image.
- Another pop-up window will appear and click
Open Image Files in OrthoEngine
- On the OrthoEngine toolbar select Data Input from the Processing Step drop down menu.
- Select Read PCIDSK file.
Saving your project
- Click File on the Menu bar.
- Click Save on the File menu. The project file PASLAR.prj is saved in the specified folder. In addition, OrthoEngine automatically creates a backup file every 10 minutes. The backup file uses the same file name as your project file, but with a .bk extension.
Tip: If you need to revert to the backup file, rename the backup file so that it uses the .prj extension. OrthoEngine can load this project file in the normal way.
Setting up for Orthorectification
Schedule ortho generation: