The role of stereopsis in the perception of objects

立体视觉在物体感知中的作用

基本信息

批准号：
203634-2012
负责人：
Wilcox, Laurie
金额：
$ 2.91万
依托单位：
York University
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2017
资助国家：
加拿大
起止时间：
2017-01-01 至 2018-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=631145
关键词：
role stereopsis perception objects

项目摘要

There are many sources of information regarding the distances between objects and across surfaces in our environment, but only stereopsis (the basis of 3D movies) can provide the compelling sense of the volume of space between points. This depth cue has been studied extensively, using very simple stimuli that allow us to isolate its contribution to human vision. Such experiments have shown that the percepts of depth from stereopsis are extremely precise, with reliable depth percepts obtained from stimuli that are displaced by only a hair's width. However, the world around us consists of objects and surfaces, and it is important that we understand how stereopsis is used when simple stimuli (lines, edges) are grouped to form objects. Therefore, the important next phase of my research program is to bridge the gap between experiments with isolated lines, to more naturalistic object-based stimuli to better understand how and when stereopsis is used in the real world. The focus of my research program is to understand how fundamental properties of stereoscopic depth perception are influenced by the presence of other such cues, in 3D images of natural scenes, or in real-world arrangements of objects. While this research focusses on how the brain achieves 3D depth perception, the results will be very relevant to the growing 3D media industry in Ontario as they work towards creating comfortable and effective 3D displays and content.

关于我们环境中物体之间和表面之间距离的信息有很多来源，但只有立体视觉（3D 电影的基础）才能提供点之间空间体积的令人信服的感觉。这种深度线索已经被广泛研究，使用非常简单的刺激，使我们能够分离出它对人类视觉的贡献。此类实验表明，立体视觉的深度感知极其精确，从仅移动一根头发宽度的刺激中获得可靠的深度感知。然而，我们周围的世界由物体和表面组成，重要的是我们了解当简单的刺激（线、边缘）被分组形成物体时如何使用立体视觉。因此，我的研究计划的重要下一阶段是弥合孤立线实验与更自然的基于对象的刺激之间的差距，以更好地理解立体视觉在现实世界中的使用方式和时间。我的研究项目的重点是了解立体深度感知的基本属性如何受到自然场景 3D 图像或现实世界物体排列中其他此类线索的影响。虽然这项研究的重点是大脑如何实现 3D 深度感知，但其结果将与安大略省不断发展的 3D 媒体行业非常相关，因为他们致力于创造舒适且有效的 3D 显示和内容。