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Scattering tomography method and scattering tomography device
US10578552B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10578552-B2 |
| Application number | US-201414767094-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 12, 2014 |
| Priority date | Feb 12, 2013 |
| Publication date | Mar 3, 2020 |
| Grant date | Mar 3, 2020 |
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Abstract
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A scattering tomography method includes: radiating waves to an object from transmitting antenna elements arranged on a curved surface; receiving scattered waves by receiving antenna elements arranged on the curved surface; and reconstructing an image relating to the information on the interior of the object from scattered wave data representing the scattered waves received by the receiving antenna elements, and in the reconstructing, a function ϕ for reconstructing the image relating to the information on the interior of the object is set in advance, an equation which a fundamental scattered function satisfies is constructed, a visualization function ρ that is obtained by solving the equation is derived from the scattered wave data, and the image relating to the information on the interior of the object is reconstructed using the visualization function.
First claim
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The invention claimed is: 1. A scattering tomography method performed by a scattering tomography device of analyzing scattered waves of waves radiated to an object, the scattering tomography method comprising: radiating electromagnetic waves to the object from a plurality of transmitting antenna elements arranged in a line on a curved surface; receiving scattered waves by a plurality of receiving antenna elements arranged in a line proximate to the line of the plurality of transmitting antenna elements on the curved surface; reconstructing a three-dimensional image relating to information on an interior of the object using, as a boundary condition, scattered wave data representing the scattered waves received by the receiving antenna elements; and displaying a reconstructed three-dimensional image that is reconstructed in the reconstructing on a display, wherein in the radiating and receiving, the line of the plurality of transmitting antenna elements is along with the line of the plurality of receiving antenna elements, and the line of the plurality of transmitting antenna elements and the line of the plurality of receiving antenna elements move in an x axis direction and rotate around the object so that the object is scanned, wherein in the reconstructing: a function ϕ, set for three-dimensional space, for reconstructing the three-dimensional image relating to the information on the interior of the object is set in advance, the function ϕ being defined in Expression A; an equation which the function ϕ satisfies in (x,y 1 ,y 2 ,z 1 ,z 2 ) space is constructed, the equation being defined in Expression B; a visualization function ρ that is obtained by solving the equation is derived from the scattered wave data, the visualization function ρ being defined in Expression C, the scattered wave data being obtained by measurement; and the three-dimensional image relating to the information on the interior of the object is reconstructed using the visualization function ρ, [ Math . 63 ] ϕ ( x , y 1 , y 2 , z 1 , z 2 , ω ) = ∫ ∫ D e i k ρ 1 ρ 1 e i k ρ 2 ρ 2 ɛ ( ξ , η , ζ ) d ξ d η d ζ ρ 1 = ( x - ξ ) 2 +
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Classifications
by spectral analysis, e.g. Fourier analysis {or wavelet analysis (spectral signal processing per se G06F17/14)} · CPC title
by acoustic tomography (medical tomography A61B8/13) · CPC title
- G01N21/47Primary
Scattering, i.e. diffuse reflection (G01N21/25, G01N21/41 take precedence {G01N21/55 takes precedence}) · CPC title
Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more (G01N3/00 - G01N17/00, G01N24/00 take precedence) · CPC title
Circuits of general importance; Signal processing · CPC title
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- What does patent US10578552B2 cover?
- A scattering tomography method includes: radiating waves to an object from transmitting antenna elements arranged on a curved surface; receiving scattered waves by receiving antenna elements arranged on the curved surface; and reconstructing an image relating to the information on the interior of the object from scattered wave data representing the scattered waves received by the receiving ante…
- Who is the assignee on this patent?
- Univ Kobe Nat Univ Corp, Integral Geometry Science Inc, Kenjiro Kimura
- What technology area does this patent fall under?
- Primary CPC classification G01N21/47. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 03 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).