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Anomaly Detection in Hyperspectral Imaging - Neal Gallagher
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- 1 Intro
- 2 Why Hyperspectral Imaging? • Useful for detection of small signals in heterogenous samples where quantities of contaminants may be low on a volume basi but may dominate signal in a single pixel, and …
- 3 PCA Anomaly Detection
- 4 Anomaly Detection Summary
- 5 T² is a Weighting
- 6 Example of GLS Weighting
- 7 Detection Algorithms
- 8 GLS Target Detection Example Signal from the unadulterated wheat gluten is highly variable and
- 9 56 ppm Example
- 10 Iterative De-Weighting
- 11 De-Weight Target by Clutter
- 12 200 ppm Melamine in Wheat Gluter
- 13 GLS Target Detection Summary
- 14 De-Weight vs Orthogonalize
- 15 Targeted Anomaly Detection
- 16 Hidden Watermark
- 17 Section 9
- 18 Conclusions
