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Image reconstruction method and image reconstruction system

An image reconstruction and sub-image technology, which is applied in the field of reconstruction of multi-resolution medical images, can solve problems such as one-time reconstruction and reduce the amount of calculation, and achieve the effects of reducing consumption, speeding up calculation, and reducing invalid calculation

Active Publication Date: 2017-01-04
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology

Image reconstruction is a key technology in the research of PET technology. Although there are relatively mature PET image reconstruction methods, such as the area reconstruction of spatial distribution function, etc., there are still problems in the process of image reconstruction for ultra-long axis PET systems. How to perform one-time reconstruction of different reconstruction parameters for different parts, and how to reduce the amount of calculation in the reconstruction process

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  • Image reconstruction method and image reconstruction system
  • Image reconstruction method and image reconstruction system

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Embodiment Construction

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and those skilled in the art can also apply the present application to other similar scenarios. Unless otherwise apparent from context or otherwise indicated, like reference numerals in the figures represent like structures or operations.

[0029] As indicated in this application and claims, the terms "a", "an", "an" and / or "the" do not refer to the singular and may include the plural unless the context clearly indicates an exception. Generally speaking, the terms "comprising" and "comprising" only suggest the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and ...

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Abstract

The invention discloses an image reconstruction method and an image reconstruction system. The method comprises steps that an image matrix is determined, and the image matrix corresponds to a scanning zone and corresponds to voxels in a certain quantity; the image matrix is divided into multiple sub image matrixes, at least one of the multiple sub image matrixes corresponds to one sub scanning zone of the scanning zone, and the voxels are partially included; the at least one sub image matrix is transformed, and at least one transformation matrix is generated; the at least one sub image matrix is reconstructed on the basis of the transformation matrix; the image matrix can be reconstructed on the basis of the reconstructed at least one sub image matrix. Through the method and the system, internal storage loss of a high-performance calculation unit in a reconstruction process can be reduced through matrix transformation, ineffective operation is further reduced, and an operation speed is accelerated.

Description

technical field [0001] The present application relates to a method and system for image reconstruction, in particular, to a reconstruction of medical images with multiple resolutions. Background technique [0002] After years of development, Positron Emission Tomography (PET) technology has been widely used in clinical examination and disease diagnosis. Among them, the ultra-long-axis PET system (which can be composed of several short-axis PETs) has an ultra-long axial field of view, and can obtain images of multiple parts or even the whole body when scanning a single bed. Image reconstruction is a key technology in the research of PET technology. Although there are relatively mature PET image reconstruction methods, such as the area reconstruction of spatial distribution function, etc., there are still problems in the process of image reconstruction for ultra-long axis PET systems. How to perform one-time reconstruction of different reconstruction parameters for different ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/00
CPCG06T11/005
Inventor 吕杨丁喻
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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