MEDICAL IMAGE PRESENTATION

我们的节目涉及到医疗的呈现手段 来自广泛的医疗设备的图像。这项研究包括 在六个项目中，涉及3D和2D显示，用于诊断和 计划放射治疗。 对于3D显示，我们将研究快速、交互的方法 医学图像信息的3D可视化，直接从 图像强度数据。我们还将调查一些 三维空间关系的可视化方法 来自两种成像模式的信息。定性临床 评价将支持这些调查。对象定义 同时在2D和3D模式下运行并且基于 将开发多分辨率图像描述，以便 支持3D显示调查。这里的评估将是 基于产生对象的准确定义的时间 具有临床意义。 对于2D显示，我们将研究对比度增强， 用于有效导航大图像的工作站设计 集合，以及对比度视觉感知的基本方面 灰度图像，导致有效的显示。视觉效果 知觉研究将集中在图像之间的关系上 空间结构对图像对比度的感知。这个 对比度受限自适应对比度增强技术 直方图均衡将在广泛的范围内进行研究 临床应用，并将进行严格的评估和 针对放射治疗应用进行了改进。这个 工作站研究将比较传统和 电子显示手段，并将开发原型 工作站功能。受控观察者研究将形成 为所有的二维感知和显示研究奠定了基础。

Our program involves the means of presentation of medical images from a wide range of modalities. The research, consisting of six projects, concern 3D and 2D display for diagnosis and for planning of radiotherapy. For 3D display we will investigate methods for fast, interactive 3D visualization of medical image information, directly from the image intensity data. We will also investigate a number of approaches for visualizing the spatial relationships among 3D information from two imaging modalities. Qualitative clinical evaluation will support these investigations. Object definition methods that operate in both 2D and 3D and which are based on multiresolution image descriptions will be developed, so as to support the 3D display investigation. Here evaluation will be based on the time to produce an accurate definition of an object of clinical interest. For 2D display we will investigate contrast enhancement, workstation design for effective navigation through large image sets, and fundamental aspects of visual perception of contrast in grey-scale images, leading to effective display. The visual perception research will focus on the relation of an image's spatial structure on the perception of contrast in that image. The contrast enhancement technique of contrast-limited adaptive histogram equalization will be investigated for a wide range of clinical applications, and it will be heavily evaluated and improved for radiotherapy treatment applications. The workstation research will compare the use of traditional and electronic means of display and will develop prototype workstation functions. Controlled observer studies will form the basis of all the 2D perception and display research.