Rotation-invarient pattern recognition using a vector reference
| Autor: | Henry Stark, Ronald Wu |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
Computer science
business.industry Materials Science (miscellaneous) Fast Fourier transform Scalar (mathematics) Scalar (physics) Image processing Invariant (physics) Industrial and Manufacturing Engineering Invariant pattern recognition Correlation Optics Harmonic function Harmonics Business and International Management business |
| Zdroj: | Applied optics. 23(6) |
| ISSN: | 1559-128X |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|