Imageodesy on MPI & GRID for Co-seismic Shift Study Using Satellite Optical Imagery

Geohazard monitoring and assessment is one of the major application research fields of DiscoveryNet project serving for scientific knowledge discovery via distributed high throughput devices. This paper reports the algorithm and software development of imageodesy, its implementation on MPI and GRID. The imageodesy techniques based on normalised-cross correlation and phase correlation are capable of measuring horizontal terrain shift at sub-pixel accuracy and thus a powerful tool for geohazard (e.g. earthquake) study. Initial processing experiment using imageodesy on DiscoveryNet workbench has led to important scientific results on measuring co-seismic shift of a major earthquake using crossevent Landsat-7 ETM+ images in a vast uninhabitable area along eastern Kunlun Mountains.