Three-dimensional registration method and system for augmented reality

A 3D registration and augmented reality technology, applied in image enhancement, image data processing, instruments, etc., can solve complex problems

Active Publication Date: 2019-09-20
北京国润健康医学投资有限公司
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  • Claims
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Problems solved by technology

Due to the relative complexity of the head-mounted optical-inertial hybrid tracking system, a large number of calculations are required to achieve virtual-real registration, which is easily affected by calculation errors

Method used

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Embodiment Construction

[0079] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will make an inventory and complete description of the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0080] Such as figure 1 As shown, the three-dimensional registration method of the virtual and real coordinate system provided by the present invention includes the following steps:

[0081] S1. Obtain CT image data of the spine sample, create a three-dimensional model of the outer surface of the spine, and calcula...

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Abstract

The invention provides a three-dimensional registration method for augmented reality, and the method comprises the steps: S1, obtaining CT image data of a spine sample, building a three-dimensional model of the spine outer surface, and carrying out the calculation, and obtaining a statistical shape model of the spine outer surface; S2, placing a marker on the reference part, obtaining CT image data of the reference part, and creating a three-dimensional model of the spine outer surface of the reference part; and calculating according to the statistical shape model of the spine outer surface to obtain repair data of the spine of the reference part. Based on the invention, a self-made marker and an NDI POLARIS high-precision optical positioning system can be used; virtual restoration of skeletal data of a patient part and three-dimensional accurate registration of a virtual-real coordinate system between a real coordinate (an actual coordinate system) of a patient in a skeletal spine augmented reality operation and a three-dimensional model coordinate (a virtual coordinate system) reconstructed based on a CT image are realized.

Description

Technical field [0001] The invention belongs to the fields of digital medicine, precision medicine, and computer graphics, and specifically relates to a three-dimensional registration method and system for augmented reality Background technique [0002] "Minimally invasive" is a cutting-edge technology in surgical research. How to make minimally invasive surgery "precise" is a problem that needs to be solved urgently. At present, orthopedic minimally invasive surgery still relies on two-dimensional X-ray fluoroscopy guidance, which has limitations such as long learning curve, inaccurate positioning of puncture points on the body surface, delay in operation time, puncture errors leading to important structural damage and excessive X-ray fluoroscopy accompanied by potential radiation. Although navigation and robot-assisted surgery technology have been applied in clinical practice, their equipment is expensive and complicated to operate, which is not conducive to promotion. Augment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/33G06T17/00
CPCG06T17/00G06T2207/10028G06T2207/10081G06T2207/30012G06T2207/30088G06T7/33
Inventor 丛曰
Owner 北京国润健康医学投资有限公司
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