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Registration method of CT (Computed Tomography) image and three-dimensional body surface image and related device

A CT imaging and three-dimensional technology, applied in the field of image processing, to achieve rapid surgical results

Pending Publication Date: 2022-07-29
QINGDAO HISENSE MEDICAL EQUIP
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Problems solved by technology

[0004] This application provides a registration method and related device for computerized tomography images and three-dimensional body surface images, which are used to solve the problem of how to effectively register three-dimensional body surface images and preoperative medical images to ensure the effect of fusion of the two

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  • Registration method of CT (Computed Tomography) image and three-dimensional body surface image and related device
  • Registration method of CT (Computed Tomography) image and three-dimensional body surface image and related device
  • Registration method of CT (Computed Tomography) image and three-dimensional body surface image and related device

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[0059] In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. The described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0060] In addition, in the description of the embodiments of the present application, unless otherwise specified, “ / ” means or means, for example, A / B can mean A or B; “and / or” in the text is only a description of the associated object The association relationship indicates that there can be three kinds of relationships, for example, ...

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Abstract

The invention relates to the technical field of image processing, in particular to a CT image and three-dimensional body surface image registration method and a related device, which are used for solving the problem of how to effectively register a three-dimensional body surface image and a preoperative medical image so as to ensure the fusion effect of the three-dimensional body surface image and the preoperative medical image. A first group of feature points and a second group of feature points are respectively extracted from a CT image and a three-dimensional body surface image, geometric transformation is performed on the CT image based on a first mapping relation between the first group of feature points and the second group of feature points, the CT image is projected in the three-dimensional body surface image, and a first mapping point set of the CT image is obtained. In order to further improve the projection accuracy, the biological tissue in the CT image is converted to the position of the same biological tissue in the three-dimensional body surface image based on a second mapping relation between the first mapping point set and the three-dimensional body surface image. Therefore, the internal structure of the organ in the CT image is displayed in the three-dimensional body surface image, so that a doctor can diagnose the position of a focus more directly.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular, to a method for registering CT images and three-dimensional body surface images and related devices. Background technique [0002] The image collected by the three-dimensional positioning device on the organ may be called a three-dimensional body surface image. Three-dimensional body surface images can show the shape of an organ, but cannot show the internal structure of the organ, so doctors cannot directly see the structure below the surface of the organ. [0003] Taking liver resection as an example, liver resection has the advantages of small incision, less pain, quick recovery, and small scar, and has quickly become the development trend of current surgery. But due to its lack of depth perception information, it poses a greater challenge to surgeons. Augmented reality technology can fuse and display model data reconstructed based on preoperative medica...

Claims

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Application Information

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IPC IPC(8): G06T7/33G06T7/73G06T3/00
CPCG06T7/337G06T7/74G06T2207/10081G06T2207/30004G06T3/14
Inventor 李南哲邹浩吴乙荣段小明陈永健
Owner QINGDAO HISENSE MEDICAL EQUIP
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