手动对齐任务的平移和旋转箭头提示(TRAC)导航方法。

IF 1.9 4区 计算机科学 Q3 COMPUTER SCIENCE, SOFTWARE ENGINEERING ACM Transactions on Applied Perception Pub Date : 2020-03-01 Epub Date: 2020-02-10 DOI:10.1145/3375001
David E Usevitch, Adam J Sperry, Jake J Abbott
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引用次数: 4

摘要

在图像引导手术中,许多任务需要临床医生在空间中手动定位器械,相对于患者,有五到六个自由度(DOF)。在计算机显示器等2D显示器上显示对象的当前和期望姿态非常简单。然而,在5-DOF或6-DOF中提供准确和快速导航对象的指导是具有挑战性的。引导通常是通过显示工作空间的不同正交视点来完成的,这需要在所有视图中同时对齐。虽然这种方法是常用的,但它们可能非常不直观,并且可能需要很长时间才能执行准确的5-DOF或6-DOF校准任务。在本文中,我们描述了一种视觉传达导航指令的方法,使用在以对象为中心的框架中定义的平移和旋转箭头线索(TRAC),同时显示一个近似于人类以自我为中心的物理对象视图的单一主视图。提供对象的目标姿态,但通常仅用于初始粗对齐。在精确对齐阶段,用户遵循明确的箭头命令。在一系列的人体研究中,我们表明TRAC方法在完成5-DOF和6-DOF导航任务的时间方面优于两种常见的正交视图方法-三平面显示和一种非常接近Acrobot导航系统的视线对准方法。我们还发现,使用TRAC方法,受试者可以达到1毫米和1°的精度,平均完成时间不到20秒。
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Translational and Rotational Arrow Cues (TRAC) Navigation Method for Manual Alignment Tasks.

Many tasks in image-guided surgery require a clinician to manually position an instrument in space, with respect to a patient, with five or six degrees of freedom (DOF). Displaying the current and desired pose of the object on a 2D display such as a computer monitor is straightforward. However, providing guidance to accurately and rapidly navigate the object in 5-DOF or 6-DOF is challenging. Guidance is typically accomplished by showing distinct orthogonal viewpoints of the workspace, requiring simultaneous alignment in all views. Although such methods are commonly used, they can be quite unintuitive, and it can take a long time to perform an accurate 5-DOF or 6-DOF alignment task. In this article, we describe a method of visually communicating navigation instructions using translational and rotational arrow cues (TRAC) defined in an object-centric frame, while displaying a single principal view that approximates the human's egocentric view of the physical object. The target pose of the object is provided but typically is used only for the initial gross alignment. During the accurate-alignment stage, the user follows the unambiguous arrow commands. In a series of human-subject studies, we show that the TRAC method outperforms two common orthogonal-view methods-the triplanar display, and a sight-alignment method that closely approximates the Acrobot Navigation System-in terms of time to complete 5-DOF and 6-DOF navigation tasks. We also find that subjects can achieve 1 mm and 1° accuracy using the TRAC method with a median completion time of less than 20 seconds.

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来源期刊
ACM Transactions on Applied Perception
ACM Transactions on Applied Perception 工程技术-计算机:软件工程
CiteScore
3.70
自引率
0.00%
发文量
22
审稿时长
12 months
期刊介绍: ACM Transactions on Applied Perception (TAP) aims to strengthen the synergy between computer science and psychology/perception by publishing top quality papers that help to unify research in these fields. The journal publishes inter-disciplinary research of significant and lasting value in any topic area that spans both Computer Science and Perceptual Psychology. All papers must incorporate both perceptual and computer science components.
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