Multi-view medical image registration method, device and equipment

A medical image and multi-view technology, applied in the field of medical images, can solve the problems of insufficient registration accuracy and registration efficiency, and achieve the effect of reducing computational complexity, reducing computational load, and improving projection efficiency

Pending Publication Date: 2022-03-15
BEIJING NEUSOFT MEDICAL EQUIP CO LTD
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Problems solved by technology

[0005] In view of this, this application provides a registration method, device and equipment for multi-view medical images, the main purpose of which is to solve the problem of registration based on image grayscale information and registration based on image feature information in the prior art. Insufficient accuracy and registration efficiency

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  • Multi-view medical image registration method, device and equipment
  • Multi-view medical image registration method, device and equipment
  • Multi-view medical image registration method, device and equipment

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Embodiment Construction

[0079] Hereinafter, the present application will be described in detail with reference to the drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0080] In related technologies, methods for 3D-2D multi-view medical image registration mainly include registration based on image grayscale information and registration based on image feature information. However, the registration method based on image grayscale information needs to deal with the global information of floating images and reference images, resulting in poor registration efficiency, but the accuracy and robustness of the registration results are relatively high; The registration method performs discrete sampling of feature items on the image, and only uses a small number of feature items to perform registration. The calculation amount is significantly reduced and the registration...

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Abstract

The invention discloses a registration method, device and equipment for a multi-view medical image, relates to the technical field of medical images, and provides a method for registering the multi-view medical image by using densely sampled image features in an effective area of projection, thereby reducing the loss of 3D space information in a perspective projection process and improving the registration efficiency. The method comprises the following steps: acquiring a feature image of a reference image and a feature image of a floating image, determining an effective area of perspective projection according to the feature image of the reference image, and performing projection on the feature image of the floating image by using the effective area of perspective projection to obtain at least one two-dimensional projection image; performing registration by moving the floating image, and calculating the similarity measure of registration for the current spatial position of the floating image by using the at least one two-dimensional projection image in the registration implementation process; and if the registered similarity measure meets a preset condition, outputting a registered rigid transformation result according to the current spatial position of the floating image.

Description

technical field [0001] The present application relates to the technical field of medical images, in particular to a registration method, device and equipment for multi-view medical images. Background technique [0002] Image-guided minimally invasive vascular interventional surgery (referred to as minimally invasive interventional surgery), gradually replaces traditional highly invasive surgical procedures due to its characteristics of small invasive length, fast postoperative recovery, strong patient universality, and low risk of complications treat. It is commonly used to treat various types of cerebrovascular diseases, such as narrowed or occluded blood vessels, aneurysms, or arteriovenous malformations. [0003] At present, according to the requirements of real-time and clinical operability, clinicians obtain real-time two-dimensional medical images of patients during minimally invasive interventional surgery, and directly guide surgical instruments to intervene in thre...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/33G06T7/32
CPCG06T7/337G06T7/32G06T2207/20068
Inventor 张睿朱传伟
Owner BEIJING NEUSOFT MEDICAL EQUIP CO LTD
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