FIG 1 (IMAGE)
Caption
Flow chart showing the processing steps of the Deconv-RPM method. is the acquired OCT frame (B-scan), where x is the B-scan direction, z is the depth direction. For simplicity, r represents any of the coordinates x or z in the case of B-scan and x, y or z for C-scan. N is the number of B-scans. In step 1, an iterative Richardson-Lucy deconvolution is performed to produce a deconvolved image . In step 2, numerical random phase masks are modulated on the , which is the Fourier space representations of. For B-scan, 1-D FFT ℱ and IFFT ℱ-1 are operated along the rows first and then the columns. obeys the normal distribution with a mean of 0. andare the pixel indices in spatial domain and Fourier domain, respectively. An average of the normalized modulated images results in a final image. For C-scan, we repeat steps 1 and 2 along the y direction in step 3.
Credit
OEA
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