Probabilistic Deep Discriminant Analysis for Wind Blade Segmentation
This work addresses wind blade segmentation for wind energy maintenance, representing an incremental advancement by applying a novel method to a specific domain.
The paper tackles the problem of wind blade segmentation by introducing Probabilistic Deep Discriminant Analysis (PDDA), which enhances class separability and reduces within-class variance, achieving notable performance and consistency improvements critical for wind energy maintenance.
Linear discriminant analysis improves class separability but struggles with non-linearly separable data. To overcome this, we introduce Deep Discriminant Analysis (DDA), which directly optimizes the Fisher criterion utilizing deep networks. To ensure stable training and avoid computational instabilities, we incorporate signed between-class variance, bound outputs with a sigmoid function, and convert multiplicative relationships into additive ones. We present two stable DDA loss functions and augment them with a probability loss, resulting in Probabilistic DDA (PDDA). PDDA effectively minimizes class overlap in output distributions, producing highly confident predictions with reduced within-class variance. When applied to wind blade segmentation, PDDA showcases notable advances in performance and consistency, critical for wind energy maintenance. To our knowledge, this is the first application of DDA to image segmentation.