现实,虚拟现实和平面显示器上的轻度常数
Khushbu Y Patel1, Laurie M Wilcox2, Laurence T Maloney3
1Department of Psychology and Centre for Vision Research, York University, Toronto, Canada. khushbuypatel1234@gmail.com.
Behavior research methods
|March 5, 2024
概括
虚拟现实 (VR) 和平面显示器显示出良好的亮度稳定性,但真实环境提供了更好的感知. 虚拟现实对许多应用程序来说是一个可行的替代方案,尽管观察者可变性更高.
科学领域:
- 视觉感知 视觉感知 视觉感知
- 人与计算机的交互
- 显示技术 显示技术
背景情况:
- 虚拟现实 (VR) 越来越多地被使用,但在虚拟环境中无法保证现实的感知.
- 准确地感知表面的颜色,特别是亮度,对于现实的场景感知至关重要.
研究的目的:
- 为了评估虚拟现实平台支持无色表面颜色的现实感知程度.
- 为了在真实环境,VR耳机和平面显示器中比较亮度常数.
主要方法:
- 评估光度常数使用物理装置与真实灯光和表面.
- 在商用虚拟现实耳机中评估的轻度常数.
- 在传统的平面显示器上测量的亮度常数.
主要成果:
- 在所有三个环境中,亮度恒定性都很好,但在真实环境中明显好于平面显示器.
- 与物理环境相比,观察者在虚拟现实和平面显示屏上的变化明显更大.
结论:
- 对于关键应用,必须考虑真实和虚拟环境之间的感知差异.
- 虚拟现实为平面显示器提供了一个灵活的替代方案,并且在许多情况下可以作为现实环境的合理代理.
相关概念视频
01:12Perceptual Constancy
391
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
391
01:15Depth Perception and Spatial Vision
651
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.
651
02:12The Wave Nature of Light
49.0K
The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.
49.0K
01:01Weightlessness
5.0K
When an object is dropped, it accelerates toward the center of the Earth. If the net external force on the object is its weight, it is said to be in free fall; that is, the only force acting on the object is gravity. Galileo was instrumental in showing that, in the absence of air resistance, all objects fall with the same acceleration g. However, when objects on the Earth fall downward, they are never truly in free fall, because there is always some upward resistance force from the air acting...
5.0K
01:21Gestalt Principles of Perception
301
Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
301
01:09Apparent Weight
8.2K
True weight is the measure of the gravitational force acting on an object. However, if the object accelerates, its measured weight is different from its true weight. Similar observations can be made when the object is submerged in water. An object's weight in water is its apparent weight, which is equal to the difference between its true weight and the buoyant forces.
Consider a person standing on a bathroom scale inside an elevator. If the scale is accurate at rest, its reading equals the...
Consider a person standing on a bathroom scale inside an elevator. If the scale is accurate at rest, its reading equals the...
8.2K