On the bias of finite-view interior tomography using piecewise-constant and non-negativity constraints.

نویسندگان

  • Gengsheng L Zeng
  • Grant T Gullberg
چکیده

It has been widely believed that the non-negativity and the piecewise-constant constraints guarantee a unique solution to an interior tomographic problem. This letter points out that if the number of views is finite, the non-negativity and the piecewise-constant constraints do not guarantee a unique solution to an interior tomographic problem and the reconstruction could be biased by a constant polygon.

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عنوان ژورنال:
  • Physics in medicine and biology

دوره 58 5  شماره 

صفحات  -

تاریخ انتشار 2013