使用光学透视头戴式显示器对立体增强现实可视化进行定量评估。

IF 0.8 4区 医学 Q4 BIOPHYSICS
Magdalena Żuk, Marcin Majak, Izabela Szczur, Michał Popek, Ewelina Świątek-Najwer
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引用次数: 0

摘要

目的:本研究的作者旨在提出一种使用光学透视头戴式显示器进行精确增强现实可视化的校准方法,并对计算机辅助手术应用中的可视化精度进行定性评估:方法:提出了一种改编的立体单点主动对齐方法,作为校准程序并进行了验证。进行了三项测试:在没有经验的用户(5 人参加)和有经验的用户(17 人参加)身上显示三维空间、平面和头骨模型表面上的点:没有经验的用户头骨模型可视化的准确度最高(3.00 毫米,标准偏差 0.75 毫米),而没有经验的用户三维可视化测试的准确度最低(22.95 毫米,标准偏差 18.04 毫米)。最大的误差与深度部分有关,为 18.49 毫米,无经验用户的标准误差为 18.10 毫米:对于选定的用户来说,实现相对较高的可视化精度(空间可视化精度小于 5 毫米)是可能的,但对于缺乏经验的用户来说,实现这一目标似乎仍是一项重大挑战。通过对物体表面进行可视化,可大大提高点指示的精确度,而且在统计学上也有显著提高。提出的方法和获得的结果可以作为进一步在光学透视头戴式显示器上实现增强现实可视化的基础,应用于需要高质量增强现实指导的手动任务中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quantitative evaluation f stereoscopic augmented reality visualization using an optical see-through head-mounted display.

Purpose: The authors of the current study aimed to propose a calibration method for accurate augmented reality visualisation using an optical see-through head-mounted display, and to qualitatively evaluate visualisation accuracy for the application in computer assisted surgery.

Methods: An adaptation of stereo single-point active alignment method was proposed as the calibration procedure together with verification. Three tests were performed: display of points in 3D space, on the plane and on the surface of a skull phantom on inexperience users (5 participants) and experienced users (17 participants).

Results: The highest accuracy of visualization was obtained for skull phantom visualisation for an inexperienced user (3.00 mm, std 0.75 mm), while the lowest accuracy was obtained in a 3D visualisation test for an inexperienced user (22.95 mm, std 18.04 mm). The largest error was related to the depth component and amounted to 18.49 mm, std 18.10 mm for an inexperienced user.

Conclusions: It is possible to achieve relatively high visualisation accuracy (less than 5 mm for visualisation in space) for selected users but providing it for the group of inexperienced users seems to remain a major challenge. The accuracy of point indication can be substantially and statistically significantly increased by visualising objects on surfaces. The proposed methods and obtained results can serve as a basis for further implementation of augmented reality visualisation on an optical see-through head-mounted display in applications requiring high-quality augmented reality guidance of manual tasks.

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来源期刊
Acta of bioengineering and biomechanics
Acta of bioengineering and biomechanics BIOPHYSICS-ENGINEERING, BIOMEDICAL
CiteScore
2.10
自引率
10.00%
发文量
0
期刊介绍: Acta of Bioengineering and Biomechanics is a platform allowing presentation of investigations results, exchange of ideas and experiences among researchers with technical and medical background. Papers published in Acta of Bioengineering and Biomechanics may cover a wide range of topics in biomechanics, including, but not limited to: Tissue Biomechanics, Orthopedic Biomechanics, Biomaterials, Sport Biomechanics.
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