Watching Television and Movies with Low Vision

低视力人士观看电视和电影

• 批准号: 8271422
• 负责人: Russell Laurence Woods
• 金额: $ 46.56万
• 依托单位: SCHEPENS EYE RESEARCH INSTITUTE
• 依托单位国家: 美国
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-06-01 至 2014-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8271422
• 关键词: Address; Age related macular degeneration; American; Americas; Area; Behavior; Blindness; Cartoons; Categories; Communication; Crowding; Development; Electronics; Evaluation; Eye Movements; Housing; Image; Impairment; Internet; Macular degeneration; Methods; Modification; Monitor; Perception; Procedures; Process; Quality of life; Reading; Rehabilitation device; Rehabilitation therapy; Research; Research Design; Resolution; Retinal; Self-Help Devices; Series; Source; Techniques; Telecommunications; Television; Testing; Vision; Visual Aid; Visual impairment; abstracting; base; diabetic; digital; ergonomics; experience; fovea centralis; gaze; image processing; improved; interest; lens; macular edema; movie; novel; tv watching; vision science

Watching Television and Movies with Low Vision Abstract Television, the internet and movies are a major source of information and entertainment. People with reduced central vision, the major form of low vision (visual impairment) in America, often have difficulty using these media. That difficulty arises because people with central retinal impairment from conditions such as age-related macular degeneration and diabetic macular edema are forced to use eccentric vision. Compared with the fovea, eccentric vision is impaired by a loss of spatial resolution, an elevation of crowding and difficulties making and maintaining eye movements. Currently, rehabilitation for television viewing is very limited, and most people with AMD express dissatisfaction with their viewing experience. Available strategies include sitting closer and purchasing a large monitor (room ergonomics difficult), telescope (limited field of view), Fresnel lens over screen (poor image quality) and audio description (little additional information provided). Magnification is the most effective form of rehabilitation for reduced central vision; however, simple electronic magnification causes restriction of the field of view. This can cause a loss of information and context and diminishes the experience. We will develop and evaluate three novel methods of modifying electronic moving images as assistive devices for people with reduced central vision. All three methods are based on magnification, but also employ dynamic and intelligent methods of reducing the loss of context and are combined with techniques to assist eye movement control. By intelligent, we mean that the magnification method makes use of information about the moving image to vary the way that the image is magnified. That information may come from the viewer, other viewers, eye movements, or it may be inherent in the moving image itself. Image-processing techniques will be employed to extract such information from the moving images, and to modify the moving images that are displayed. To better deploy these magnification methods, we will include studies to demonstrate that people with reduced central vision can use certain image modifications and that the modifications do not produce unsatisfactory images. We will systematically develop and evaluate each of the three magnification methods in studies designed to test whether there are objective and subjective benefits to people with central vision loss. In the process, we will develop novel methods for the assessment of benefit of moving-image modification (enhancement), an area that is poorly developed. In summary, we propose to develop and evaluate novel vision rehabilitation aids that will improve the ability to use television, the internet and movies, and thereby improve the quality of life of people with reduced central vision.

看电视和视力低下的电影 抽象的 电视，互联网和电影是信息和娱乐的主要来源。有人 降低了中央视力，这是美国低视力（视觉障碍）的主要形式，通常很难 使用这些媒体。出现困难是因为条件下有中央视网膜障碍的人 例如与年龄相关的黄斑变性和糖尿病黄斑水肿被迫使用偏心 想象。与中央凹相比，空间分辨率损失，高程会损害偏心的视力 拥挤和困难和保持眼动的困难。目前，康复 电视观看非常有限，大多数患有AMD的人都对自己的观看表示不满意 经验。可用策略包括靠近坐着购买大型监视器（房间人体工程学 困难），望远镜（视野有限），屏幕上的菲涅耳镜头（图像质量差）和音频 描述（提供的其他信息很少）。放大是最有效的形式 减少中央视力的康复；但是，简单的电子放大量会限制 视野。这可能会导致信息和上下文的丢失，并减少体验。 我们将开发和评估三种修改电子运动图像的新方法 辅助设备，适用于中央视觉减少的人。这三种方法均基于放大倍数， 但还采用动态和聪明的方法来减少上下文的丧失，并与 帮助眼动控制的技术。通过智能，我们的意思是放大方法 利用有关移动图像的信息来改变图像的放大方式。那 信息可能来自观众，其他观众，眼动，或者可能是固有的 运动图像本身。将采用图像处理技术从 移动图像，并修改显示的移动图像。 为了更好地部署这些放大方法，我们将包括研究以证明人们 通过降低中央视觉可以使用某些图像修改，并且修改不会 产生不令人满意的图像。我们将系统地开发和评估三个 旨在测试客观和主观利益的研究中的放大方法 中央视力损失的人。在此过程中，我们将开发新的方法来评估 移动图像修饰（增强）的好处，该区域发育不良。 总而言之，我们建议开发和评估新颖的视力康复辅助工具，以改善 使用电视，互联网和电影的能力，从而提高了人们的生活质量 中央视力降低。