The detection of changes between two images is of interest in a wide range of applications. An important example is side-looking Synthetic Aperture Radarl (SAR) imagery taken at different times. A method called Symbolic Matching with Confidence Evaluation is proposed to perform atuomatic change detection for SAR images. The results of the preliminary experiments have been very promising and will be presented.© (1979) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

The advent of real-time electro-optic reconnaissance heralded by the Advanced Tactical Air Reconnaissance System (ATARS) and the Joint Services Image Processing System (JSIPS) will place a heavy burden on the ground exploitation of the collected imagery. Image enhancement, rotation, warping, feature extraction, and mensuration are some of the imagery functions that can be automated. However, current military processing power is not sufficient to allow these functions to be performed in real time. Parallel processing techniques offer a solution for image exploitation in the real-time and near real-time domains. Control Data's Parallel Modular Signal Processor (PMSP) is a single chassis, militarized package combining multiple high-speed vector-processing modules with control, storage and interfacing modules. The PMSP performs Fast Fourier Transforms (FFT) and other video and signal-processing functions at execution rates in excess of 600 million operations per second. The PMSP is very flexible and programmable, capable of handling multiple sensors separately or combined, while providing many new possibilities for image data fusion algorith applications. This level of performance will allow real-time image processing for today and tomorrow.

Automatic Change Detection For Synthetic Aperture Radar Images

Citations

Application Of Parallel Processing To Image Exploitation

References

Synthetic aperture radar systems : theory and design

Application Of Parallel Processing To Image Exploitation

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