We address the problem of exact signal recovery in frequency-domain optical-coherence tomography
(FDOCT). The standard technique for tomogram reconstruction is the inverse Fourier transform. However,
the inverse Fourier transform is known to yield autocorrelation artifacts which interfere with the
desired signal. We propose a new transformation for computing an artifact-free tomogram from intensity
measurements. Our technique relies on the fact that, in the FDOCT measurements, the intensity
of the total signal reflected from the object is smaller than that of the reference arm. Our technique
is noniterative, nonlinear, and it leads to an exact solution in the absence of noise. The reconstructed
signal is free from autocorrelation artifacts. We present results on synthesized data as well as on
experimental FDOCT measurements of the retina of the eye.
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