TRUE VOLUME VISUALIZATION OF MEDICAL DATA

医疗数据的真实体积可视化

• 批准号: 3362898
• 负责人: STEVE E WIXSON
• 金额: $ 19.78万
• 依托单位: UNIVERSITY OF ALABAMA AT BIRMINGHAM
• 依托单位国家: 美国
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-01-01 至 1992-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3362898
• 关键词: biomedical equipment development; clinical biomedical equipment; magnetic resonance imaging; mathematics; psychophysics

This application is based on the hypothesis that 3 dimensional (3D) structures are easier to identify for both humans and computers when data is presented in true 3D. 3D is a term with many meanings, and in this application, the true adjective means that the viewer can sense depth using stereopsis. This application deals primarily with human perception, however, the results form computer perception must be presented to humans for validation, and the visualization tools needed will be similar to those described for raw or processed 3D data. A volumetric workstation is under developed. The true 3D display uses the liquid crystal stereo shutter technology. The workstation has a unique direct 3D pointer and voice input and output. Volumetric software consists of a volume window manager, Mayo Clinics' Analyze program converted to the stereo display, and the Digital Stereo Microscope algorithms that allow discrete 3D data to be examined in much the same way an optical stereo microscope is used to examine transparent real samples. This application proposes to complete the workstation by upgrading a donated Explorer LX workstation containing the Odyssey multiprocessor subsystem with additional memory and disk storage, and converting numerically intensive algorithms to the existing multiprocessor. The feasibility of the technology will be demonstrated by processing and/or displaying two classes of medical data: cubes of 3D sampled data (NMR, SPECT and simulated doppler echocardiograms) and data obtained form spatially oriented transducers (multielectrode epicardial electrograms, stereo electron micrographs and stereo cineangiograms). Investigators experience with the data types will evaluate the results. The perception of medical 3D data has received little attention and psychophysical studies are proposed that will examine the investigators ability to resolve detail in 3D space. Subjects will presented a variety of application oriented stimuli and asked to respond by touching perceived structures with the 3D pointer providing unusually quantifiable data for analysis. Extensive calibration studies will also be performed to determine how accurately a subject can point to objects of precisely known dimensions.

该应用基于三维（3D） 当数据被发现时， 以真正的3D呈现。 3D是一个有很多含义的术语，在这个 真正的形容词意味着观众可以感觉到深度使用 立体视觉 这个应用程序主要处理人类的感知， 然而，计算机感知的结果必须呈现给人类 进行验证，所需的可视化工具将类似于 描述了原始或处理的3D数据。 正在开发一个体积工作站。 真正的3D显示器使用 液晶立体快门技术。 该工作站具有独特的 直接3D指针和语音输入和输出。 体积软件包括 马约诊所的分析程序转换为 立体显示，以及数字立体显微镜算法， 离散的3D数据以与光学立体图像相同的方式进行检查， 显微镜用于检查透明的真实的样品。 本申请建议通过升级 捐赠的Explorer LX工作站，包含Odyssey多处理器 子系统与额外的内存和磁盘存储，并转换 数字密集型算法到现有的多处理器。 的 该技术的可行性将通过处理和/或 显示两类医疗数据：3D采样数据的立方体（NMR， SPECT和模拟多普勒超声心动图）和从 空间定向换能器（多电极心外膜电描记图， 立体电子显微照片和立体电影血管造影照片）。 调查人员 数据类型的经验将评估结果。 医疗3D数据的感知很少受到关注， 心理物理学研究被提出，将检查调查人员 在3D空间中解析细节的能力。 主题将呈现各种 的应用程序为导向的刺激，并要求通过触摸感知的反应 结构与三维指针提供了异常的量化数据， 分析. 还将进行广泛的校准研究， 确定受试者能够多准确地指向精确已知的物体 尺寸.