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Volume 10,     Number 2,     Summer 2002

 

RECONSTRUCTION AND ENHANCEMENT OF CURRENT DISTRIBUTION ON CURVED SURFACES FROM BIOMAGNETIC FIELDS USING POCS
CEON RAMON, J. SCHREIBER, JENS HAUEISEN, PAUL SCHIMPF, ROBERT J. MARKS AND AKIRA ISHIMARU

Abstract. Reconstruction and enhancement of the current distribution on curved surfaces from biomagnetic fields using POCS is a novel idea with possible medical applications, such as reconstructions of current distribution on the heart or brain surface. An initial estimate of the current distribution is obtained by solving the biomagnetic inverse problem using pseudo-inverse techniques. The initial image vaguely resembles the original shape of the current distribution which can be improved by alternating projections assuming that images can be represented by line-like elements.

 

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