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首页> 外文期刊>Medical image analysis >Real-time synthesis of bleeding for virtual hysteroscopy.
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Real-time synthesis of bleeding for virtual hysteroscopy.

机译:实时合成出血,用于虚拟宫腔镜检查。

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摘要

In this paper we present a method for simulating bleeding in a virtual reality hysteroscopic simulator for surgical training. The simulated bleeding is required to be visually appealing while at the same time instantaneously responsive to any feedback that the surgeon may be conducing to the virtual environment. In order to meet these real-time requirements, we have based the simulation on graphical fluid solvers. These solvers primarily work best over a 2D domain. For correct visualization in the hysteroscopic simulator, it is, however, necessary to perform the simulation fully in 3D. Therefore in this paper we also present the design modifications for 3D graphical fluid solving and show how to use parallelization to maintain real-time behavior. We also discuss how the incorporation of massless particles into the simulation can improve the visual quality of the results by limiting numerical dissipation effects.
机译:在本文中,我们提出了一种在虚拟现实宫腔镜模拟器中模拟出血以进行外科手术训练的方法。要求模拟的出血在视觉上具有吸引力,同时要立即响应外科医生可能对虚拟环境产生的任何反馈。为了满足这些实时要求,我们基于图形化流体求解器进行了仿真。这些求解器主要在2D域上效果最佳。为了在宫腔镜模拟器中进行正确的可视化,有必要在3D中完全执行模拟。因此,在本文中,我们还提出了3D图形流体求解的设计修改,并展示了如何使用并行化来保持实时行为。我们还将讨论将无质量粒子合并到模拟中如何通过限制数值耗散效应来改善结果的视觉质量。

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