| CPC G01R 33/0023 (2013.01) [G01R 33/10 (2013.01)] | 20 Claims |
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1. An external field response distribution visualization device that generates an image showing an external field response distribution, which is a distribution of responses to an external field, the external field response distribution visualization device comprising:
one or more induction circuits that sequentially induce a first field component from each of actual induction positions defined outside of an object as positions relative to the object;
one or more sensors that sense, at each of actual sensing positions defined outside of the object as positions relative to the object, a strength of a field including a second field component induced from the object by the first field component sequentially induced from each of the actual induction positions, to sense the strength of the field at the actual sensing positions for each of the actual induction positions; and
an information processing circuit that obtains a sensing result of the strength of the field and generates the image showing the external field response distribution of an area including an interior of the object based on the sensing result, wherein
the information processing circuit:
derives an induction position dependent field function that takes a virtual induction position and a virtual sensing position as inputs and outputs a strength of the field at the virtual sensing position, using the sensing result as a boundary condition;
derives an imaging function that takes an imaging target position as an input and outputs an image intensity at the imaging target position, and is defined based on a strength output from the induction position dependent field function in response to inputting the imaging target position, as the virtual induction position and the virtual sensing position, into the induction position dependent field function; and
generates the image based on the imaging function.
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