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On a limited-view reconstruction problem in diffraction tomography

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2 Author(s)
Xiaochuan Pan ; Dept. of Radiol., Chicago Univ., IL, USA ; Anastasio, M.A.

Diffraction tomography (DT) is an inversion technique that reconstructs the refractive index distribution of a scattering object. We previously demonstrated that by exploiting the redundant information in the DT data, the scattering object could be exactly reconstructed using measurements taken over the angular range [0, φ min], where π < φ min ≤ 3π/2. In this paper, we reveal a relationship between the maximum scanning angle and image resolution when a filtered backpropagation (FBPP) reconstruction algorithm is employed for image reconstruction. Based on this observation, we develop short-scan FBPP algorithms that reconstruct a low-pass filtered scattering object from measurements acquired over the angular range [0, Φ c], where Φ c < φ min.

Published in:

Medical Imaging, IEEE Transactions on  (Volume:21 ,  Issue: 4 )