From: Discrete shearlet transform on GPU with applications in anomaly detection and denoising
Forward transform | Inverse transform | ||
---|---|---|---|
1. | Laplacian decomposition | 1. | Forward FFT of directional components |
2. | Forward FFT of Laplacian components | 2. | Modulation with complex conjugate directional filter bank |
3. | Modulation of Laplacian components with directional filter bank | 3. | Inverse FFT of directional components |
4. | Inverse FFT of directional components | 4. | Laplacian reconstruction |