HCC: Small: Enabling Focus Cues in Stereoscopic Displays

HCC：小：在立体显示器中启用焦点提示

• 批准号: 0915035
• 负责人: Hong Hua
• 金额: $ 49.76万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-01 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0915035&HistoricalAwards=false
• 关键词: HCC; Small; Enabling; Focus; Cues

Although many different approaches to 3D displays have been explored for decades, the dominant technology in practical use has been of the stereoscopic type, which provides a sense of depth by presenting two perspective images, one for each eye, of a scene from two slightly different viewing positions. A problem inherent to this approach is the lack of correctly rendered focus cues, which stems from the fact that the pairs of stereoscopic images are typically presented on 2D flat surfaces at a fixed distance from the eye. As a result, retinal image blur does not vary with the distances from an eye fixation point to other points at different depths in the simulated scene, but remains consistent with the fixed distance of the display surface. And the eye accommodation depth tends to be at the fixed distance of the 2D display while the eyes are forced to converge at different distances to view objects at different depths. Psychophysical studies have suggested that these incorrect focus cues may contribute to the compressed depth perception and visual discomfort commonly reported when viewing stereoscopic images, which have profound implications for adopting stereoscopic displays for a wide range of applications. In this project, the PI will develop an alternative 3D display based on depth-fused multifocal plane technology that offers more accurate rendering of the focus cues than conventional stereoscopic displays. Instead of focusing on the engineering aspects of developing a better 3D display, she will pursue a human-centered approach wherein human observers participate in the design process for a multi-modal 3D display platform that allows flexible adaptation of the display along multiple display modalities with different levels of focus cue accuracy, from the basic stereoscopic display mode to advanced display modes with correct or partially correct focus cues. The PI will carry out pilot experiments to validate the functions of different display modalities and to evaluate the effects of focus cues on depth perception.Broader Impacts: The new technology will offer a display solution with higher depth perception accuracy, higher stereo acuity, faster task performance, and less eye fatigue than currently available systems. Project outcomes will furthermore provide a much-needed research tool that supports investigation under controlled conditions of the various factors potentially contributing to depth perception accuracy and visual fatigue, as well as exploration of critical health issues such as the consequences for vision development in children of protracted viewing of stereoscopic images.

尽管数十年来探索了3D显示器的许多不同方法，但实际使用中的主要技术是立体镜类型，它通过从两个略有不同的观看位置展示一个场景，通过展示两个透视图像，每只眼睛为每只眼睛提供了一种深度感。 这种方法固有的一个问题是缺乏正确渲染的焦点提示，这是由于立体镜图像对通常在距离眼睛固定距离的2D平面表面上呈现。 结果，视网膜图像模糊与从眼睛固定点到模拟场景不同深度的其他点的距离没有变化，但与显示表面的固定距离保持一致。 而眼睛的可容纳深度往往位于2D显示屏的固定距离，而眼睛被迫在不同的距离上收敛以在不同深度处观察对象。 心理物理学研究表明，这些不正确的焦点提示可能有助于观看立体图像时通常报告的压缩深度感知和视觉不适，这对于采用广泛应用的立体镜面显示具有深远的影响。 在该项目中，PI将基于深度融合的多灶性平面技术开发替代3D显示屏，该显示比传统的立体显示器更准确地渲染焦点提示。 她将采用以人为本的方法来开发更好的3D显示屏的工程方面，而是在其中，人类观察者参与了一个多模式3D显示平台的设计过程，该方法允许沿多个显示模态的显示器灵活地适应显示器，具有不同级别的焦点提示精度，来自不同级别的静态显示模式，从基本的定位显示模式到高级展示模式，伴随或部分正确的群体，或者是正确的corce pocipe pocipe corce of pocortimal corce pocipe pocipe use。 PI将进行试验实验，以验证不同显示方式的功能，并评估焦点提示对深度感知的影响。Broader的影响：新技术将提供具有更高深度感知精度，更高的立体声明性，更快的任务性能，并且比当前可用的系统更少的显示解决方案。 项目成果还将提供急需的研究工具，该工具支持在各种因素的控制条件下进行调查，这些因素可能有助于深度感知准确性和视觉疲劳，以及探索关键健康问题，例如对静脉镜观看型观察的儿童视力发展的后果。