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A highly immersive visual presentation method suitable for virtual surgery simulation of brain surgery

A technology of virtual surgery and brain surgery, which is applied in the field of high-immersion virtual surgery simulation visual presentation, which can solve the problem of difficult user immersion, enhance the realism of tactile and somatosensory interaction between people and virtual and real environments, and the lack of realism of models, etc. problem, to achieve the effect of fast and efficient surgical operation level, enhance the sense of realism and immersion, and improve the level of surgical operation

Active Publication Date: 2018-05-25
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fidelity and tactile realism of the system is still an urgent problem to be solved.
The frontier issues of virtual and real surgery are: enhancing the consistent presentation of the real environment and the virtual environment, and enhancing the reality of the force-tactile and somatosensory interaction between people and the virtual and real environment
Although these virtual reality systems have carried out more detailed simulations of virtual tissues and organs, they have not been integrated with the real environment. A single isolated model lacks a sense of reality, and it is difficult to make users feel immersive visually.

Method used

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  • A highly immersive visual presentation method suitable for virtual surgery simulation of brain surgery
  • A highly immersive visual presentation method suitable for virtual surgery simulation of brain surgery
  • A highly immersive visual presentation method suitable for virtual surgery simulation of brain surgery

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Embodiment Construction

[0020] The invention adopts a jump-based video texture synthesis method to process the video as a global or local repeated periodic dynamic texture. Since the structure of the brain tissue in the video is not consistent with the motion of the spot, the image of the brain tissue is separated from the image of the spot area, the image of the brain tissue is repaired, the area of ​​the spot is enlarged, and then dynamic texture synthesis is performed by region. The texture is mapped as the environment background, and the mirror environment is mapped to the virtual meningioma to ensure the visual consistency between the texture of the brain tumor and the brain tissue.

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Step 1: Carry out regional segmentation on the brain tumor resection video, and perform preprocessing respectively: in order to break through the limitation of time length, perform real-time dynamic ...

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Abstract

Provided is a high-immersion visual presentation method applicable to brain surgery virtual surgery simulation. The method comprises steps of dividing an image into a spot region Us and a brain tissue region Ub, linearly amplifying the spot region into a Us 'image, carrying out centroid registration on a spot image Us and the Us', carrying out image repair on the brain tissue region to a Ub 'image, carrying out video synthesis of the Us' and Ub', carrying out video frame decoding to generate textures, eliminating transition of head and tail frames, carrying out surgery background dynamic textures cycle mapping, carrying out surgery tumor mirror environment mapping, and the like. According to the method disclosed by the present invention, through a video sequence obtained by using a video camera, high realistic scene information is established by performing a dynamic texture mapping method, and realistic textures of surgery virtual organs are obtained by carrying out mirror environment mapping, so that realism and immersion of surgery simulation are greatly enhanced, practice doctors can experience dynamic visual effects more personally on the scene just like a real operation, a surgical operation level of the practice doctors can be improved more rapidly and more efficiently.

Description

technical field [0001] The invention relates to the technical fields of image processing and virtual reality, in particular to a highly immersive virtual surgery simulation visual presentation method. Background technique [0002] Virtual fusion has extremely important application value in medical operation. The highly simulated system allows doctors or interns to master the operations provided by the system through practice, and they can repeat the operations as many times as possible. However, the fidelity and tactile realism of the system is still an urgent problem to be solved. The frontier issues of virtual-real surgery are: enhancing the consistent presentation of the real environment and the virtual environment, and enhancing the reality of the force-tactile and somatosensory interactions between people and the virtual-real environment. [0003] At present, many universities and scientific research institutions at home and abroad have successively developed virtual-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G16H50/50
CPCG16H50/50
Inventor 赖蘋华刘小平程强强胡凌燕李春泉邹艳妮
Owner NANCHANG UNIV
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