在人类立体体验中,二维匹配来自一维刺激元件的二维匹配
1Institute for Sensory Research, Syracuse University, New York 13244-5290, USA. bart_farell@isr.syr.edu
Nature
|October 28, 1998
概括
立体深度感知依赖于与视网膜相匹配的图像. 这项研究表明,一维组件,而不是二维特征,是立体匹配的基本元素.
科学领域:
- 神经科学是一个神经科学.
- 视觉科学 视觉科学 视觉科学
- 感知心理学 感知心理学
背景情况:
- 三维视觉场景作为二维图像被投射到视网膜上.
- 深度感知源于左视网膜图像和右视网膜图像之间的微妙差异 (水平差异).
- 立体声匹配需要在两个视网膜图像中识别相应的部分.
研究的目的:
- 确定在立体相匹配中使用的基本刺激元素.
- 调查涉及差异检测的元素的空间特性.
- 挑战对立体通信的经典观点.
主要方法:
- 将差异适应技术应用于视觉模式.
- 用于1D组件和2D特征的不同差异的模式.
- 测量了适应对立体深度感知的影响.
主要成果:
- 发现有效的差异适配器在深度上与适应模式相隔很远.
- 立体声匹配被证明在二维空间的所有方向发生.
- 一维组件被确定为立体匹配的主要元素.
结论:
- 立体匹配不仅限于水平差异.
- 一维组件作为立体匹配的基本原始.
- 这一发现颠覆了对立体对应的经典理解.
相关概念视频
01:15Depth 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.
01:24Color Vision
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.