System for interpolating surface potential values for use in cal

Details System for interpolating surface potential values for use in cal System for interpolating surface potential values for use in cal

1991-09-20

1993-09-21

Envall, Jr., Roy N.

Boots, shoes, and leggings

128731, G06F 1542, A61B 504

Patent

active

052474364

ABSTRACT:
A system for mapping and/or displaying spatiotemporal features of underlying event-related neural activity involves measuring the event-related evoked potential values at a limited number of points over the region of interest, deriving a first grid of potential values at points over the area of interest representing at least about a five fold increase in the number of points by a Kriging-type of spatial statistical interpolation, and using the first grid to derive for the region of interest a second grid of points of current density values by a Laplacian conversion. A plurality of second grids of current density values spaced apart in time are derived and displayed on a monitor in cartoon-type fashion to provide a cartoon-type display of the features of the event-related evoked response over the region of interest varying with time. Various other displays are possible for highlighting specific features.

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patent: 4744029 (1988-05-01), Raviv et al.
Davis, Michael W. D. and David, Michael "Automatic Kriging and contouring in the presence of trends", J. Canadian Petroleum Technology, vol. 17, No. 1 Jan.-Mar. 1978.
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B. D. Ripley "Spatial Statistics", in the series entitled Probalility and Mathematical Satistics Publ. by John Wiley, NY pp. 44-75 (1981).
R. L. Bras et al., "Random Functions and Hydrology", 1984, pp. 385-413, Addison-Wesley Publishing Co., Reading, MA., U.S.A.

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