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Multimode image registration method and system

A multi-modal image and image technology, applied in the field of medical imaging, can solve the problems of inaccurate one-to-one correspondence of obvious feature points, center matching error of PET/CT, etc., to achieve the effect of ensuring accuracy and reducing registration errors

Active Publication Date: 2017-02-01
SHANGHAI UNITED IMAGING HEALTHCARE
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Problems solved by technology

Since the characteristic points cannot be accurately one-to-one correspondence, there is a matching error in the center of PET / CT

Method used

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  • Multimode image registration method and system
  • Multimode image registration method and system
  • Multimode image registration method and system

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Embodiment Construction

[0057] The specific implementation manner of the present invention will be described in more detail below with reference to schematic diagrams. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0058] An embodiment of the present invention provides a method for multimodal image registration, which is used to correct the errors of the reconstruction centers of the first imaging device and the second imaging device. Registering the model; scanning and reconstructing the registration model by a first imaging device to obtain a first image; scanning and reconstructing the registration module by a second imaging device to obtain a second image; A first point is determined on every two different-plane straig...

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Abstract

The invention provides a multimode image registration method and system. The first point making the distance between every two straight lines across different surfaces in multiple straight lines across different surfaces shortest is determined by establishing a registration model provided with multiple straight lines across different surfaces and utilizing the uniqueness of the point shortest away from the straight lines across different surfaces, mapping data of the first point in a first image and a second image is respectively obtained, then rotation matrixes and translation vectors from the first image to the second image are obtained according to the mapping data, and the rotation matrixes and the translation vectors serve as registration parameters of the second image and the first image. Due to the uniqueness of the first point between every two straight lines across different surfaces, the accuracy of registration between the first image and the second image is ensured, and registration errors between the first image and the second image are decreased.

Description

technical field [0001] The invention relates to the technical field of medical imaging, in particular to a multimodal image registration method and system. Background technique [0002] Dual-mode imaging can obtain the second image with functional information and the first image with fine anatomical structure information, and the fusion of the two images can precisely locate the lesion and improve the accuracy of disease diagnosis. For example, Positron Emission Tomography-Computed Tomography (abbreviation: PET / CT), where PET images provide functional information and CT provides anatomical structure information, or Positron Emission Tomography-Magnetic Resonance Imaging (abbreviation: PET / MR) Wait. In 2001, the first commercial clinical human PET / CT came out. At present, PET / CT has been widely used in clinical disease diagnosis, and has basically replaced the independent PET system. PET / CT technology is also widely used in small animal imaging research. Usually the PET de...

Claims

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Application Information

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IPC IPC(8): A61B6/03A61B5/055G06T7/00G06T11/00
CPCA61B5/055A61B6/035A61B6/037A61B6/5235A61B6/5247G06T11/003G06T2207/10104G06T2207/10072G06T2207/10081G06T11/008A61B5/7425A61B5/743A61B5/0035G06T7/337G06T2207/10088G06T2211/464G06T3/14G06T7/74G06T7/50G06T3/20G06T3/60G06T11/006G06T2211/421G06T2211/424
Inventor 阳刚杜淼燕
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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