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.

关于对象和环境中跨表面之间距离之间的距离有很多信息，但是只有立体声（3D电影的基础）才能提供令人信服的点之间空间量的感觉。使用非常简单的刺激，对这种深度提示进行了广泛的研究，使我们能够隔离它对人类视力的贡献。这样的实验表明，立体声的深度感知非常精确，可靠的深度感知从仅由头发的宽度所取代的刺激中获得。但是，我们周围的世界由对象和表面组成，重要的是要了解当简单的刺激（线，边缘）分组以形成对象时，如何使用立体声。因此，我的研究计划的重要下一阶段是弥合具有孤立线条的实验之间的差距，以更自然的基于对象的刺激，以更好地了解现实世界中如何以及何时使用立体声。我的研究计划的重点是了解立体深度感知的基本属性如何受其他此类提示，自然场景的3D图像或物体真实环境中的3D图像的影响。尽管这项研究的重点是大脑如何实现3D深度感知，但结果将与安大略省不断增长的3D媒体行业非常相关，因为它们致力于创建舒适有效的3D显示器和内容。