With funding from JIEDDO, in combination with substantial IR&D support, Prometheus Scientists have used noncommutative group harmonic analysis to automatically detect and identify lines in cluttered images. This Line Finder (LF) technology has been successfully applied:
1. As an operator assistance tool for use with squint SAR images;
2. With dual-polarization SAR images and EO/IR video to discriminate vehicle
tracks and treadmarks as well as power and telephone lines and their poles;
3. To imagery derived from the Vehicle And Dismount Exploitation Radar to
detect vehicle treads and footprints;
4. To Yuma Proving Grounds Seeker data and foliage penetration (FOPEN) data;
5. To detect IED trip wires.
LF performs single pass detection and classification of thin wires, which may
be curved and/or partially occluded, and significantly outperforms algorithms
based on Radon-Hough or edge detection. The underlying mathematics is
presented in the monograph Group Filters and Image Processing (Psypher Press, 2003)
written by two Prometheus Principal Scientists, Myoung An and Richard Tolimieri."
