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Optometric measurements predict performance but not comfort on a virtual object placement task with a stereoscopic three-dimensional display

机译:验光测量可通过立体三维显示器预测性能,但不能预测虚拟对象放置任务的舒适度

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摘要

Twelve participants were tested on a simple virtual object precision placement task while viewing a stereoscopic three-dimensional (S3-D) display. Inclusion criteria included uncorrected or best corrected vision of 20/20 or better in each eye and stereopsis of at least 40 arc sec using the Titmus stereotest. Additionally, binocular function was assessed, including measurements of distant and near phoria (horizontal and vertical) and distant and near horizontal fusion ranges using standard optometric clinical techniques. Before each of six 30 min experimental sessions, measurements of phoria and fusion ranges were repeated using a Keystone View Telebinocular and an S3-D display, respectively. All participants completed experimental sessions in which the task required the precision placement of a virtual object in depth at the same location as a target object. Subjective discomfort was assessed using the simulator sickness questionnaire. Individual placement accuracy in S3-D trials was significantly correlated with several of the binocular screening outcomes: viewers with larger convergent fusion ranges (measured at near distance), larger total fusion ranges (convergent plus divergent ranges, measured at near distance), and/or lower (better) stereoscopic acuity thresholds were more accurate on the placement task. No screening measures were predictive of subjective discomfort, perhaps due to the low levels of discomfort induced.
机译:在查看立体三维(S3-D)显示器时,对12位参与者进行了简单的虚拟对象精度放置任务测试。入选标准包括每只眼睛的未矫正或最佳矫正视力为20/20或更好,以及使用Titmus体视测验至少达到40弧秒的立体视。此外,还使用标准的验光临床技术评估了双眼功能,包括对远近和近隐(水平和垂直)和远近与近水平融合范围的测量。在六个30分钟的实验时段中的每一个之前,分别使用Keystone View望远镜和S3-D显示器重复进行验光和融合范围的测量。所有参与者都完成了实验会议,在该会议中,任务要求将虚拟对象精确地深度放置在与目标对象相同的位置。使用模拟器疾病问卷评估主观不适。 S3-D试验中的个体放置准确性与双目筛选结果中的几项显着相关:具有较大融合融合范围(在近距离处测量),较大总融合范围(会聚加散度范围,在近距离处测量)的观看者,和/或更低(更好)的立体视敏度阈值在放置任务上更为准确。没有筛查方法可以预测主观不适,这可能是由于诱发的不适水平低所致。

著录项

  • 来源
    《Optical engineering》 |2014年第6期|061711.1-061711.8|共8页
  • 作者单位

    U.S. Air Force Research Laboratory, 711 Human Performance Wing, 2255 H Street, Building 248, Wright-Patterson AFB, Ohio 45433;

    U.S. Air Force School of Aerospace Medicine, 2510 5th Street, Building 840, Wright-Patterson AFB, Ohio 45433;

    Ball Aerospace, 2875 Presidential Drive, Fairborn, Ohio 45433;

    U.S. Air Force Research Laboratory, 711 Human Performance Wing, 2255 H Street, Building 248, Wright-Patterson AFB, Ohio 45433;

    Wright State University, Psychology Department, 3640 Colonel Glenn Highway, 335 Fawcett Hall, Dayton, Ohio 45435;

    U.S. Air Force Research Laboratory, 711 Human Performance Wing, 2255 H Street, Building 248, Wright-Patterson AFB, Ohio 45433;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    S3-D; stereopsis; optometry; binocular vision; virtual environment; depth perception;

    机译:S3-D;立体视验光双眼视力虚拟环境;深度感知;

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