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Optics Letters

Optics Letters


  • Vol. 23, Iss. 11 — Jun. 1, 1998
  • pp: 882–884

Nonuniqueness in diffusion-based optical tomography

Simon R. Arridge and William R. B. Lionheart  »View Author Affiliations

Optics Letters, Vol. 23, Issue 11, pp. 882-884 (1998)

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A condition on nonuniqueness in optical tomography is stated. The main result applies to steady-state (dc) diffusion-based optical tomography, wherein we demonstrate that simultaneous unique recovery of diffusion and absorption coefficients cannot be achieved. A specific example of two images that give identical dc data is presented. If the refractive index is considered an unknown, then nonuniqueness also occurs in frequency-domain and time-domain optical tomography, if the underlying model of the diffusion approximation is employed.

© 1998 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology

Simon R. Arridge and William R. B. Lionheart, "Nonuniqueness in diffusion-based optical tomography," Opt. Lett. 23, 882-884 (1998)

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