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相关概念视频

Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

646
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.
646

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相关实验视频

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Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues
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通过虚拟现实模拟来理解外围镜的视角变化,以扩展场.

Jonathan K Doyon1, Alex D Hwang1, Jae-Hyun Jung1

  • 1Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford St, Boston, MA 02114, USA.

Biomedical optics express
|March 18, 2024
PubMed
概括

镜场扩展,用于视力丧失,使用新的视角转移图像. 这项研究模拟了旋转和线性方法,分析了它们对视野扩展装置患者对物体感知和导航的影响.

科学领域:

  • 视光学和视觉科学 视光学和视觉科学
  • 人与计算机的交互
  • 虚拟现实模拟虚拟现实模拟

背景情况:

  • 周边场损失会影响患者的视野,影响日常导航.
  • 镜场扩展是一种常见的视觉辅助器,将图像转移到视野中.
  • 了解镜如何改变视觉感知对于优化这些设备至关重要.

研究的目的:

  • 模拟和分析两种镜场扩张方法:角度 (旋转) 和线性 (切割和移动).
  • 研究这些方法对物体位置,大小和光流的影响.
  • 评估使用场扩展装置的个人对导航的潜在影响.

主要方法:

  • 虚拟现实模拟角和线性场扩张技术.
  • 在静态和动态条件下对象属性 (位置,大小) 变化的分析.
  • 检查每个扩张方法产生的光流模式.

主要成果:

  • 角度和线性场扩张方法都会改变对象的感知和视觉线索.
  • 旋转扩展创造了一个翻译和旋转的视角.
  • 线性扩展 (切割和转移) 也会改变感知到的视觉环境.

结论:

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  • 模拟场扩张方法显著改变视觉感知.
  • 对象感知和光流的这些变化可能会影响导航能力.
  • 需要进一步的研究来优化现场扩展装置,以便有效地使用患者.