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相关概念视频

Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

653
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
653

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Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues
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定量评估 f 立体增强现实可视化使用光学透视头部显示器.

Magdalena Żuk1, Marcin Majak1, Izabela Szczur1

  • 1Faculty of Mechanical Engineering, Department of Mechanics, Material and Biomedical Engineering, Wrocław University of Science and Technology, Wrocław, Poland.

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|February 5, 2024
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概括

精确的增强现实 (AR) 可视化校准对于计算机辅助手术至关重要. 虽然表面可视化可以提高准确性,但对于缺乏经验的用户来说,实现一致的结果仍然是一个挑战.

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相关实验视频

Last Updated: Jul 4, 2025

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Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
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科学领域:

  • 医疗成像医学成像
  • 计算机辅助手术 计算机辅助手术
  • 增强现实是一种增强现实.

背景情况:

  • 增强现实 (AR) 可视化提供了增强计算机辅助手术 (CAS) 的潜力.
  • 对光学透视头戴显示器 (OST-HMD) 的准确校准对于在外科应用中提供可靠的AR指导至关重要.
  • 现有的校准方法可能无法完全满足复杂的外科任务的准确性要求.

研究的目的:

  • 建议和评估一个准确的AR可视化的校准方法,使用OST-HMDs.
  • 在CAS应用的背景下评估可视化准确性.
  • 调查用户体验对校准准确度的影响.

主要方法:

  • 适应的立体声单点主动对齐方法被用于校准.
  • 进行了三个可视化测试:3D空间,平面和头骨幻影表面.
  • 测试涉及无经验 (5名参与者) 和经验丰富 (17名参与者) 的用户.

主要成果:

  • 最高的精度 (3.00毫米,std 0.75毫米) 是通过未经验的用户来实现头骨幻影可视化.
  • 最低的精度 (22.95毫米,std 18.04毫米) 发生在3D空间可视化对于没有经验的用户.
  • 对于没有经验的用户来说,深度组件错误是显著的 (18.49 mm,std 18.10 mm).

结论:

  • 高可视化准确度 (空间<5毫米) 是可以实现的选择用户.
  • 对于没有经验的用户来说,确保准确性仍然是一个重大挑战.
  • 在表面上可视化对象显著提高了点指示准确性,支持手动任务中的AR指导.