A notable trend is that SPA has evolved from being merely paired with traditional regression models to serving as an indispensable preprocessing step for advanced machine learning models.
← all excerpts
Leveraging UAV hyperspectral imaging for crop physiology and biochemistry: A comprehensive review of feature extraction and selection methods.
2
—
—
The sentences
No single method can adequately address all challenges, and current research shows a clear trend toward multi-source feature fusion—for example, feeding PCA-reduced features into deep networks, or combining wavelet- and texture-based features.