Visualisation Talk
Radar Imaging of Angkor
The visualisation data that you will see was acquired by the SIR-C/X-SAR and AIRSAR radar arrays owned and operated by the JPL. It is the most adavanced imaging radar system to be created to date. The reasons that the system is so advanced is that it has the ability to acquire multiple images in three seperate wavelengths (L-Band, C-Band and X-Band) and four polarisation states two of which are symmetric..............simultaneously.
We acquired the image data from the JPL in the hope of finding a series of roads and irrigation channels that would be able to define the extent of the former capital of the Khmer Empire-Angkor. The city of Angkor itself is known as the 8th wonder of the world for its immense temple structures and the magnitude of the irrigation network. The city's size is presently illdefined and if we were able to provide the archeaological comunity with a new tool in data acquisition it would have broad applications. Moreso is that the information on the size of the former capital may be used acording to Assoc. Professor Roland Fletcher to define the limit to the current industrialised cities.
70% of the work in Visulalisation is understanding your data. The images that were provided to us came in the form of 6 files
- Compressed Stokes L-Band
- Compressed Stokes P-Band
- Digital elevation model
- Angular incination
- DEM correction file
- VVi image C-Band
Each of these files came with solid documentaion and also Header files.
Example of a header file
An example of a field file.
What are the type of structures that we are looking for.
Example of a header file
This is the type of Road structure that we are looking for.
