A multi-mode three-dimensional image registration and fusion display method

A 3D image and fusion display technology, applied in the field of digital medical treatment, can solve the problems of low registration accuracy, high time cost, and inability to apply non-rigid registration, etc., and achieve the effect of improving registration accuracy and enhancing fusion effect

Active Publication Date: 2019-06-28
PEKING UNIV THIRD HOSPITAL
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Problems solved by technology

The invention overcomes the problems of low registration precision and high time cost of multi-modal 3D images in the prior art, and cannot be applied to non-rigid registration, and is easy to operate, low in cost, accurate in registration results, and has high practical value

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  • A multi-mode three-dimensional image registration and fusion display method
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  • A multi-mode three-dimensional image registration and fusion display method

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Embodiment Construction

[0041] The present invention proposes a multi-modal three-dimensional image registration and fusion display method. The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0042] The registration and fusion display method of multi-modal three-dimensional images proposed by the present invention, step 1: obtain the CT three-dimensional image and MRI three-dimensional image of the patient, and obtain the edge feature image of the CT three-dimensional image and MRI three-dimensional image; Step 2...

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Abstract

The invention provides a multi-mode three-dimensional image registration and fusion display method, and relates to the technical field of digital medical treatment. The method comprises the followingsteps: firstly, acquiring a multi-modal three-dimensional image of a patient to be subjected to an operation, and extracting an edge feature image of the multi-modal three-dimensional image by using an edge detection method; Performing downsampling on the edge feature image to obtain edge feature point cloud of the patient multi-modal three-dimensional image; Constructing a to-be-registered pointcloud into a Gaussian mixture model, and calculating a to-be-optimized point cloud probability density function; Optimizing the probability density function by using an EM method to obtain registration parameters among the multi-modal three-dimensional images; And finally, carrying out fusion display on the multi-modal three-dimensional image by using a wavelet transformation method. The method issimple and convenient to operate, low in cost, accurate in registration result and high in practical value.

Description

technical field [0001] The invention relates to the technical field of digital medical treatment, in particular to a registration and fusion display method of multi-modal three-dimensional images. Background technique [0002] In the process of digital medical diagnosis, doctors usually need to use the collected multi-modal 3D images to analyze the patient's lesion before the operation, so as to formulate the operation plan. However, the multimodal 3D images of patients collected before surgery have differences in scanning angles and acquisition equipment, so the image features that can be highlighted are also different. Multimodal 3D images are multiple types of 3D images, such as computed tomography (CT) images and magnetic resonance imaging (MRI) images. In order to integrate the advantages of various modalities of 3D images collected before surgery, it is necessary to register the 3D images of different modalities to the same angle and to fuse the characteristics of the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/33G06T5/50
Inventor 夏有辰张龙马建勋
Owner PEKING UNIV THIRD HOSPITAL
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