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Integrated volume visualization of functional image data and anatomical surfaces using normal fusion

机译：使用常规融合功能图像数据和解剖表面的集成体积可视化

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摘要

A generic method, called normal fusion, for integrated three‐dimensional (3D) visualization of functional data with surfaces extracted from anatomical image data is described. The first part of the normal fusion method derives quantitative values from functional input data by sampling the latter along a path determined by the (inward) normal of a surface extracted from anatomical data; the functional information is thereby projected onto the anatomical surface independently of the viewpoint. Fusion of the anatomical and functional information is then performed with a color‐encoding scheme based on the HSV model. This model is preferred over the RGB model to allow easy, rapid, and intuitive retrospective manipulation of the color encoding of the functional information in the integrated display, and two possible strategies for this manipulation are explained. The results first show several clinical examples that are used to demonstrate the viability of the normal fusion method. These same examples are then used to evaluate the two HSV color manipulation strategies. Furthermore, five nuclear medicine physicians used several other clinical cases to evaluate the overall approach for manipulation of the color encoded functional contribution to an integrated 3D visualization. The integrated display using the normal fusion technique combined with the added functionality provided by the retrospective color manipulation was highly appreciated by the clinicians and can be considered an important asset in the investigation of data from multiple modalities. Hum. Brain Mapping 12:203–218, 2001. © 2001 Wiley‐Liss, Inc.
机译：描述了一种用于将功能数据与从解剖学图像数据中提取的表面进行综合三维（3D）可视化的通用方法，称为法线融合。法线融合方法的第一部分是通过沿着由解剖数据提取的表面的（向内）法线确定的路径对功能输入数据进行采样，从功能输入数据中获取定量值的;功能信息由此独立于视点投影到解剖表面上。然后使用基于HSV模型的颜色编码方案对解剖和功能信息进行融合。该模型优于RGB模型，以允许对集成显示器中功能信息的颜色编码进行轻松，快速和直观的追溯操作，并说明了这种操作的两种可能策略。结果首先显示了几个临床实例，用于证明正常融合方法的可行性。然后将这些相同的示例用于评估两种HSV颜色处理策略。此外，五位核医学医师还使用其他几个临床案例来评估操纵彩色编码功能对集成3D可视化的总体方法。临床医生高度赞赏使用常规融合技术结合回顾性色彩操作提供的附加功能的集成显示器，并且可以将其视为研究多种形式数据的重要资产。哼。 Brain Mapping 12：203–218，2001.©2001 Wiley-Liss，Inc.

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