Quantitative evaluation of stereoscopic augmented reality visualization using an optical see-through head-mounted display

IF 0.8 4区 医学 Q4 BIOPHYSICS Acta of bioengineering and biomechanics Pub Date : 2023-01-01 DOI:10.37190/abb-02296-2023-02
Magdalena Żuk, Marcin Majak, Izabela Szczur, Michał Popek, Ewelina Świątek-Najwer
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Abstract

Purpose The objectives of the current study were 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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使用光学透明头戴式显示器的立体增强现实可视化定量评估
本研究的目的是提出一种使用光学透明头戴式显示器进行精确增强现实可视化的校准方法,并定性地评估计算机辅助手术中应用的可视化准确性。方法提出了一种适应立体单点主动对准方法作为标定程序并进行验证,分别对无经验用户(5人)和有经验用户(17人)进行了三维空间、平面和颅骨幻影表面点显示3个测试。结果无经验者颅骨幻像显示精度最高(3.00 mm,标准0.75 mm),无经验者颅骨幻像显示精度最低(22.95 mm,标准18.04 mm)。最大的误差与深度分量有关,达到18.49毫米,对于没有经验的用户,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(空间可视化小于5毫米)是可能的,但为缺乏经验的用户群体提供它似乎仍然是一个主要挑战。通过在表面上可视化物体,可以大大提高点指示的准确性。所提出的方法和获得的结果可以作为在光学透明头戴式显示器上进一步实现增强现实可视化的基础,用于需要高质量增强现实指导手动任务的应用。
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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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