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1. WO2020069121 - SPACE-TIME SCATTERING NETWORK FOR INVERSE DESIGN AND TOMOGRAPHY

Publication Number WO/2020/069121
Publication Date 02.04.2020
International Application No. PCT/US2019/053143
International Filing Date 26.09.2019
IPC
G06T 15/00 2011.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
153D  image rendering
G01R 33/56 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
44using nuclear magnetic resonance
48NMR imaging systems
54Signal processing systems, e.g. using pulse sequences
56Image enhancement or correction, e.g. subtraction or averaging techniques
G01R 33/54 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
44using nuclear magnetic resonance
48NMR imaging systems
54Signal processing systems, e.g. using pulse sequences
CPC
G01R 33/54
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
44using nuclear magnetic resonance [NMR]
48NMR imaging systems
54Signal processing systems, e.g. using pulse sequences ; , Generation or control of pulse sequences
G01R 33/56
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
44using nuclear magnetic resonance [NMR]
48NMR imaging systems
54Signal processing systems, e.g. using pulse sequences ; , Generation or control of pulse sequences
56Image enhancement or correction, e.g. subtraction or averaging techniques ; , e.g. improvement of signal-to-noise ratio and resolution
G06T 11/003
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
112D [Two Dimensional] image generation
003Reconstruction from projections, e.g. tomography
Applicants
  • NORTHWESTERN UNIVERSITY [US]/[US]
Inventors
  • MOHSENI, Hooman
  • HAMILTON, Travis G.
Agents
  • KALAFUT, Christopher
  • BELL, Callie M.
  • MANNING, Michelle
  • POREMBSKI, N. Meredith
Priority Data
62/736,61026.09.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SPACE-TIME SCATTERING NETWORK FOR INVERSE DESIGN AND TOMOGRAPHY
(FR) RÉSEAU DE DIFFUSION ESPACE-TEMPS POUR LA CONCEPTION ET LA TOMOGRAPHIE INVERSES
Abstract
(EN)
A system to generate a space-time scattering network includes a computing unit configured to store a space-time scattering network (STSN) algorithm. The computing unit also executes the STSN algorithm to represent scattering of light through a material mathematically as a tensor field at a location. The computing unit also generates a subnet that represents the tensor field at the location. The computing unit also identifies, based on a translation operator, connections between a plurality of subnets, where each of the subnets in the plurality of subnets represents a given tensor field at a given location. The computing unit also forms the STSN based at least in part on the identified connections between the plurality of subnets. The computing unit further uses the STSN to inversely design an optical component or to perform tomography.
(FR)
La présente invention concerne un système pour générer un réseau de diffusion espace-temps qui comprend une unité de calcul configurée pour stocker un algorithme de réseau de diffusion espace-temps (STSN). L'unité de calcul exécute également l'algorithme STSN pour représenter la diffusion de la lumière à travers un matériau de manière mathématique, sous la forme d'un champ de tenseur à un emplacement. L'unité de calcul produit également un sous-réseau qui représente le champ de tenseur au niveau de l'emplacement. L'unité de calcul identifie également, sur la base d'un opérateur de traduction, des connexions entre une pluralité de sous-réseaux, chacun des sous-réseaux parmi la pluralité de sous-réseaux représentant un champ de tenseur donné à un emplacement donné. L'unité de calcul forme également le STSN sur la base, au moins en partie, des connexions identifiées entre la pluralité de sous-réseaux. L'unité de calcul utilise en outre le STSN pour concevoir de manière inverse un composant optique ou pour effectuer une tomographie.
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