Translation, rotation, scale and aspect invariant matched filter and scene combination
Abstract
An interesting pattern has been discovered, which when used as the input scene to a Vander Lugt type correlator, possesses almost complete invariance to the usual problems associated with pattern recognition. The scene may be translated, rotated, scaled, or tilted without total loss of the correlation signal. This, of course, is a specialized scene, but interesting applications for such a pattern do exist.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- June 1985
- Bibcode:
- 1985STIN...8618696G
- Keywords:
-
- Images;
- Invariance;
- Matched Filters;
- Pattern Recognition;
- Phase Shift;
- Real Time Operation;
- Rotation;
- Scale;
- Analysis (Mathematics);
- Correlation;
- Correlators;
- Fourier Transformation;
- Input;
- Transmission;
- Instrumentation and Photography