Rotation-invariant pattern recognition using a vector reference
- 15 March 1984
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 23 (6) , 838-840
- https://doi.org/10.1364/ao.23.000838
Abstract
In this paper, we extend the method of expansion into circular harmonic functions (CHF) by using vector rather than scalar target signatures. The reference vector consists of correlation products between the reference image and individual harmonics of the CHF expansion of the reference image. The use of vectors furnishes certain advantages including the ability to detect targets in poor signal-to-noise or low-contrast environments.Keywords
This publication has 3 references indexed in Scilit:
- Rotation-invariant digital pattern recognition using circular harmonic expansionApplied Optics, 1982
- Optical pattern recognition using circular harmonic expansionApplied Optics, 1982
- An Optimal Set of Discriminant VectorsIEEE Transactions on Computers, 1975