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    • 29. 发明授权
    • System for interactive 3D object extraction from slice-based medical images
    • 基于切片医学图像的交互式3D对象提取系统
    • US06606091B2
    • 2003-08-12
    • US09777531
    • 2001-02-06
    • Cheng-Chung LiangThomas Moeller
    • Cheng-Chung LiangThomas Moeller
    • G06T1700
    • G06T17/20
    • The present invention relates to a method and a system for extracting a 3D region of interest from a stack of medical scan slices which is still a challenging task even in this new millennium. One difficulty is that there is no robust automatic algorithm that can handle all the different situations and applications. Human intervention is usually unavoidable for extracting desired area or organs. However, without convenient tools, it is a tedious job for human being to go through hundred or thousand of slices just to extract region of interest. A system combines and modifies several advanced techniques to help a user extract volume of interest very easily and quickly. The technique of livewire for initial-delineate and modify regions of interest from 2D slices is utilized. Then variational interpolation technique is employed to derive a 3D shape from these delineated 2D contours. The 3D shape can be visualized as is or converted to a 3D solid for volume visualization or masking out of the undesirable parts of a data set.
    • 本发明涉及一种用于从医疗扫描片堆叠提取感兴趣的3D区域的方法和系统,即使在这个新的千年中这仍然是一项具有挑战性的任务。 一个困难是没有可靠的自动算法可以处理所有不同的情况和应用。 人为干预通常不可避免地用于提取所需的区域或器官。 然而,没有方便的工具,人类通过数百个切片只是为了提取感兴趣的领域,这是一个乏味的工作。 系统组合和修改了几种高级技术,以帮助用户非常容易和快速地提取感兴趣的体积。 利用用于从2D切片初始描绘和修改感兴趣区域的活线技术。 然后使用变分插值技术从这些描绘的2D轮廓中导出3D形状。 3D形状可以按原样可视化,也可以转换成3D固体,用于数据集的不可取部分的体积可视化或掩蔽。