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Unique tomographic reconstruction of vector fields using boundary data

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1 Author(s)
Norton, Stephen J. ; Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA

The problem of reconstructing a vector field v(r) from its line integrals (through some domain D) is generally undetermined since v(r) is defined by two component functions. When v(r) is decomposed into its irrotational and solenoidal components, it is shown that the solenoidal part is uniquely determined by the line integrals of v(r). This is demonstrated in a particularly simple manner in the Fourier domain using a vector analog of the well-known projection slice theorem. In addition, under the constraint that v (r) is divergenceless in D, a formula for the scalar potential φ(r) is given in terms of the normal component of v(r) on the boundary D. An important application of vector tomography, i.e., a fluid velocity field from reciprocal acoustic travel time measurements or Doppler backscattering measurements, is considered

Published in:

Image Processing, IEEE Transactions on  (Volume:1 ,  Issue: 3 )

Date of Publication:

Jul 1992

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