Nonuniqueness in diffusion-based optical tomography.
نویسندگان
چکیده
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.
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عنوان ژورنال:
- Optics letters
دوره 23 11 شماره
صفحات -
تاریخ انتشار 1998