Virtual brain surgery simulation method based on high-fusion-degree augmented reality

Abstract

The invention discloses a virtual brain surgery simulation method based on high-fusion-degree augmented reality. The method includes steps: fully considering the mechanical property of in-vivo soft tissues, integrating viscoelasticity into a human body soft tissue deformation model, conducting a biomechanical test on the real soft tissues, determining soft tissue physical mechanical model parameters, and obtaining an accurate deformation calculation result. Dynamic texture mapping and rendering is performed on a high-simulation brain tissue area background, and real-time dynamic scene information with high reality sense is established; mirror surface environment texture mapping is performed on a virtual brain tumor model, and reality sense textures homogenous to a brain tissue environmentare obtained; registration and fusion output of the real-time dynamic scene information and the textures is performed, a synchronization effect of reality and virtuality on the textures is realized, athree-dimensional stereoscopic scene is presented through a binocular visual system, and the reality sense and the immersion of the system are enhanced.

Description

technical field [0001] The invention relates to the technical field of computer simulation, in particular to a virtual brain surgery simulation method based on high-fusion augmented reality. Background technique [0002] Existing virtual brain surgery simulation training systems, such as NeuroTouch, use the mesh method to calculate and simulate the deformation process of virtual brain group values. When simulating brain surgery operations such as cutting and suction, the topological structure of the virtual brain tissue grid needs to be changed, which undoubtedly increases the difficulty and complexity of deformation calculation. At the same time, the use of virtual reality to render the surgical simulation results has a large gap with the real brain surgery scene. The surgeon cannot obtain a high sense of immersion during training, and the simulation training results are inferior to the real surgery. . Contents of the invention [0003] The present invention designs and...

AI Technical Summary

Problems solved by technology

When simulating brain surgery operations such as cutting and suction, the topological structure of the virtual brain tissue grid needs to be changed, which undoubtedly increases the difficulty and complexity of deformation calculations

At the same time, the use of virtual reality to render the surgical simulation results has a large gap with the real brain surgery scene. The surgeon cannot obtain a high sense of immersion during training, and the simulation training results are inferior to the real surgery.

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