4 Reconstruction of Retinal OCT Images with Sparse Representation
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Fig. 4.5 Denoising results for two test SDOCT retinal images using the Tikhonov [15], New SURE
[39], K-SVD [28], BM3D [40] and the proposed MSBTD method. The left and right columns show
the foveal images from a normal subject and an AMD patient, respectively. a, b The averaged (highSNR) images for the multiscale structural dictionary training. c, d Low-SNR noisy foveal images
from the volumetric scans. e, f Denoising results using the Tikhonov method. g, h Denoising results
using the New SURE method. i, j Denoising results using the K-SVD method. k, l Denoising results
using the BM3D method. m, n Denoising results using the MSBTD method