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1. WO2020135630 - SYSTEMS AND METHODS FOR IMAGE RECONSTRUCTION

Publication Number WO/2020/135630
Publication Date 02.07.2020
International Application No. PCT/CN2019/128853
International Filing Date 26.12.2019
IPC
G06T 11/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
112D image generation
G06N 3/04 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
NCOMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
3Computer systems based on biological models
02using neural network models
04Architecture, e.g. interconnection topology
CPC
G06N 3/0454
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
NCOMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
3Computer systems based on biological models
02using neural network models
04Architectures, e.g. interconnection topology
0454using a combination of multiple neural nets
G06N 3/084
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
NCOMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
3Computer systems based on biological models
02using neural network models
08Learning methods
084Back-propagation
G06T 11/006
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
112D [Two Dimensional] image generation
003Reconstruction from projections, e.g. tomography
006Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
G06T 11/008
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
112D [Two Dimensional] image generation
003Reconstruction from projections, e.g. tomography
008Specific post-processing after tomographic reconstruction, e.g. voxelisation, metal artifact correction
G06T 2207/10104
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
10Image acquisition modality
10072Tomographic images
10104Positron emission tomography [PET]
G06T 2207/20084
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
20Special algorithmic details
20084Artificial neural networks [ANN]
Applicants
  • SHANGHAI UNITED IMAGING INTELLIGENCE CO., LTD. [CN]/[CN]
Inventors
  • ZHANG, Yang
  • LYU, Yang
  • XI, Chen
Agents
  • METIS IP (CHENGDU) LLC
Priority Data
16/726,96426.12.2019US
201811602836.326.12.2018CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR IMAGE RECONSTRUCTION
(FR) SYSTÈMES ET PROCÉDÉS DE RECONSTRUCTION D'IMAGES
Abstract
(EN)
A system for image reconstruction is disclosed. The system may obtain an initial image of a subject. The initial image may be generated based on scan data of the subject that is collected by an imaging device. The system may also generate a gradient image associated with the initial image. The system may further generate a target image of the subject by applying an image reconstruction model based on the initial image and the gradient image. The target image may have a higher image quality than the initial image.
(FR)
La présente invention concerne un système de reconstruction d'images. Le système peut obtenir une image initiale d'un sujet. L'image initiale peut être générée sur la base de données de balayage du sujet qui sont collectées par un dispositif d'imagerie. Le système peut également générer une image de gradient associée à l'image initiale. Le système peut en outre générer une image cible du sujet par application d'un modèle de reconstruction d'image sur la base de l'image initiale et de l'image de gradient. L'image cible peut avoir une qualité d'image supérieure à celle de l'image initiale.
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