METHODS OF GRAVITY AND/OR MAGNETIC HOLOGRAPHIC IMAGING USING VECTOR AND/OR TENSOR DATA
First Claim
1. A method for imaging an object having density and/or magnetization, the object being located in an examined medium, the method comprising:
- a. placing at least one actual gravity vector and/or tensor (GVT) and/or magnetic vector and/or tensor (MVT) sensor at least one receiving position with respect to the examined medium;
b. measuring at least one GVT and/or MVT component of the GVT and/or MVT data fields with at least one actual GVT and/or MVT sensor;
c. conceptually replacing the at least one actual GVT and/or MVT sensor with at least one conceptual source of GVT and/or MVT data, the at least one conceptual source having a scalar density and/or vector magnetization which directly corresponds to the at least one measured GVT and/or MVT component;
d. obtaining a back-propagating (migration) tensor field equivalent to that produced by the at least one conceptual source that replaced the at least one actual GVT and/or MVT sensor;
e. obtaining an integrated sensitivity of the GVT and/or MVT data acquisition system by estimating a least square norm of values of perturbation of the at least one GVT and/or MVT component at the at least one receiving position due to a density and/or magnetization perturbation at a specific local area of the examined medium; and
f. producing a holographic image of the object by spatially weighting the back-propagating (migration) field.
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Abstract
A method for holographic imaging an object having density and/or magnetization is described, the object being located in an examined medium using potential field data including but not limited to gravity and/or magnetic total field and/or vector and/or tensor data. The potential field sensors may measure the gravity and/or magnetic total field and/or vector and/or tensor data at least one receiving position with respect to the examined medium. At least one component of the measured potential field in at least one receiver location (potential field data) may be used as at least one artificial source of the potential field data. Artificial sources may produce a back-propagating (migration) field. An integrated sensitivity of the potential field data to density and/or magnetization perturbation may be calculated. A spatial weighting of at least one of the back-scattering (migration) fields may form a potential field holographic image. At least one desired property of the medium, such as density and/or magnetization, may be derived from this holographic image.
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Citations
16 Claims
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1. A method for imaging an object having density and/or magnetization, the object being located in an examined medium, the method comprising:
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a. placing at least one actual gravity vector and/or tensor (GVT) and/or magnetic vector and/or tensor (MVT) sensor at least one receiving position with respect to the examined medium; b. measuring at least one GVT and/or MVT component of the GVT and/or MVT data fields with at least one actual GVT and/or MVT sensor; c. conceptually replacing the at least one actual GVT and/or MVT sensor with at least one conceptual source of GVT and/or MVT data, the at least one conceptual source having a scalar density and/or vector magnetization which directly corresponds to the at least one measured GVT and/or MVT component; d. obtaining a back-propagating (migration) tensor field equivalent to that produced by the at least one conceptual source that replaced the at least one actual GVT and/or MVT sensor; e. obtaining an integrated sensitivity of the GVT and/or MVT data acquisition system by estimating a least square norm of values of perturbation of the at least one GVT and/or MVT component at the at least one receiving position due to a density and/or magnetization perturbation at a specific local area of the examined medium; and f. producing a holographic image of the object by spatially weighting the back-propagating (migration) field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for imaging an anomalous region located within an organism, the method comprising:
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a. placing at least one gravity vector and/or tensor (GVT) and/or magnetic vector and/or tensor (MVT) sensor at various receiving positions with respect to the examined organism; b. measuring at least one GVT and/or MVT component with the at least one GVT and/or MVT sensor; c. conceptually replacing the at least one GVT and/or MVT sensor with at least one conceptual source of the GVT and/or MVT data, each conceptual source having a scalar density and/or vector magnetization which replicates at least one component of the measured GVT and/or MVT data; d. obtaining a back-propagating (migration) tensor field equivalent to that produced by the at least one conceptual source that replaced the at least one GVT and/or MVT sensor; e. obtaining an integrated sensitivity of a GVT and/or MVT data acquisition system by estimating a least square norm of the values of perturbation of the at least one GVT and/or MVT component of GVT and/or MVT data at least one of the various receiving positions due to density and/or magnetization perturbation at a specific local area of the examined organism; and f. producing a holographic image of the organism by spatially weighting of said back-propagating (migration) fields. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification