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膨胀光流和横向运动抛光对深度估计的影响,正常和人为降低的敏度

Siyun Liu^1,2,3, Daniel J Kersten^2,4, Gordon E Legge^2,5

¹Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.

Journal of vision

|October 6, 2023

概括

侧向运动抛光比扩展光流更能提高深度感知,特别是在连续运动中. 这种好处适用于正常或视力低下的观察者.

科学领域:

视觉感知视觉感知视觉感知
深度感知感知深度感知
光学是什么?光学是什么?光学是什么?

背景情况:

观察者的运动会影响视网膜图像的变化,例如扩张和水平移动.
了解这些视觉线索如何影响深度感知对于虚拟现实和机器人等领域至关重要.

研究的目的:

为了研究扩展光流和横向运动抛光对深度感知精度的影响.
为了确定连续运动或离散图像位移是否更有利于深度估计.
为了评估正常和人工降低视敏度的观察者对这些效应的评估.

主要方法:

参与者用模拟的视觉条件在虚拟房间中估计了目标物体的深度.
条件包括静态观看,膨胀的光流和横向运动偏移 (连续运动与图像位移).
进行了两项实验:一种是正常度,另一种是人为降低的度.

主要成果:

侧向运动抛光产生了比扩展光流和静态观测更准确的深度估计.
连续运动抛物线在深度感知方面优于图像位移,特别是在轻度到中度的敏度降低下.
这些发现在正常和视力敏度下降的观察者之间是一致的.

结论:

侧向运动抛物线是对物体深度估计的更有效的提示,而不是膨胀的光流.
与离散图像位移相比,连续运动为深度感知提供了更大的好处,特别是当视觉敏度受到损害时.

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相关概念视频

Depth Perception and Spatial Vision

Depth Perception and Spatial Vision

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.