医学体积重建技术
Medical Volume Reconstruction Techniques
摘要：
医学可视化是利用计算机从医学成像数据集生成三维图像，发达国家几乎所有的外科手术和癌症治疗都依赖于它。体可视化技术包括等值面可视化、网格可视化和点云可视化技术，这些技术给医学带来了革命性的变化。现代医学的大部分依赖于3D成像，其可以使用磁共振成像（MRI）扫描仪、功能性磁共振成像（fMRI）扫描仪、正电子发射断层扫描（PET）扫描仪、超声成像（US）扫描仪、X射线扫描仪、生物标记显微成像扫描仪和计算机断层扫描（CT）扫描仪，这些扫描仪从2D切片制作3D图像。本报告的主要目标是面向应用的优化现有的体渲染方法提供交互式帧速率。技术传统的阿尔法混合渲染，表面阴影显示，最大强度投影（MIP），和快速预览与完全交互式参数控制。针对交互式等值面绘制和快速预览，提出了不同的预处理策略，如著名的Marching Cube算法。
英文摘要：
Medical visualization is the use of computers to create 3D images from medical imaging data sets, almost all surgery and cancer treatment in the developed world relies on it.Volume visualization techniques includes iso-surface visualization, mesh visualization and point cloud visualization techniques, these techniques have revolutionized medicine. Much of modern medicine relies on the 3D imaging that is possible with magnetic resonance imaging (MRI) scanners, functional magnetic resonance imaging (fMRI)scanners, positron emission tomography (PET) scanners, ultrasound imaging (US) scanners, X-Ray scanners, bio-marker microscopy imaging scanners and computed tomography (CT) scanners, which make 3D images out of 2D slices. The primary goal of this report is the application-oriented optimization of existing volume rendering methods providing interactive frame rates. Techniques are presented for traditional alpha-blending rendering, surface-shaded display, maximum intensity projection (MIP), and fast previewing with fully interactive parameter control. Different preprocessing strategies are proposed for interactive iso-surface rendering and fast previewing, such as the well-known marching cube algorithm.
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