3 Speckle Noise Reduction and Enhancement for OCT Images
57
Fig. 3.5 Denoising results in a sample Topcon image. a Original noisy image, b 2D CDL, c 2D
ICWDL, d 2D RCWDL, e 3D ICWDL, f 3D RCWDL, g 2D DSDL, h 3D DSDL, i 2D SDWT, j
2D RCWT, k 2D CCWT, l 3D CCWT [16]
OCT image -->
-->denoised OCT
Shrinkage FuncƟon
Forward Transform
Inverse Transform
Fig. 3.6 The block diagram of non data adaptive transform based OCT denoising