PERCEPTION OF DEPTH AND SURFACE PROPERTIES

深度和表面特性的感知

• 批准号: 6179907
• 负责人: MICHAEL S LANDY
• 金额: $ 20.01万
• 依托单位: NEW YORK UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-08-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6179907
• 关键词: behavioral /social science research tag; clinical research; cues; form /pattern perception; human subject; mathematical model; neural information processing; psychophysics; surface property; vision tests; visual depth perception; visual stimulus

DESCRIPTION: The proposed experiments are intended to clarify how humans make use of the various different cues to depth. Three themes guide this work. The first is that an ideal observer is sensitive to the quality of information available from different depth cues in a particular scene. The second is that the ideal observer is sensitive also to the logical type of information available from different depth cues. Depth information of different types must be promoted to a common type before being combined, and this process may explain many depth cue interactions. The third theme concerns the veridicality of stimuli. If an ideal observer is sensitive to the quality of information available from different depth cues then the use of impoverished stimuli can alter the nature of the processing. These three themes lead to a Modified Weak Fusion framework for understanding depth cue combination. The experiments will use highly realistic, controllable viewing conditions involving large displays and accurately modelled scene and surface properties. The proposed research consists of three major tasks: 1) Examination of interactions between depth cues in terms of perceived depth as well as other perceived surface properties such as lightness to test the MWF model 2) Carry out a number of single cue depth studies and other control studies and 3) Study the form of the surface representation used by human observers.

描述：拟议的实验旨在阐明人类如何 利用各种不同的深度线索。三个主题指南 这项工作第一个是，一个理想的观察者是敏感的， 从不同深度线索中获得的信息质量 特殊场景第二是理想的观察者是敏感的 也适用于从不同深度获得的逻辑类型的信息， 线索必须将不同类型的深度信息提升为公共 在组合之前，这个过程可以解释许多深度线索 交互.第三个主题涉及刺激的真实性。如果 一个理想的观察者对可获得的信息的质量是敏感的 那么对贫乏刺激的使用可以改变 处理的性质。这三个主题导致了一个修改 弱融合框架，用于理解深度提示组合。的 实验将使用高度逼真、可控的观察条件 涉及大显示器和精确建模的场景和表面 特性.本研究主要包括三个方面的工作：1） 深度线索之间的相互作用的研究 深度以及其他可感知的表面特性 测试MWF模型2）进行一些单一线索深度研究 和其他对照研究; 3）研究表面的形式 人类观察者使用的表示法。