用于视力障碍者的电视信号数字增强：一种消费产品的评估
Digital Enhancement of Television Signals for People with Visual Impairments: Evaluation of a Consumer Product.
作者信息
Fullerton Matthew, Peli Eli
机构信息
Schepens Eye Research Institute, Harvard Medical School, Boston, MA, USA.
出版信息
J Soc Inf Disp. 2008 Mar;16(3):493-500. doi: 10.1889/1.2896328.
Abstract
Technology to improve the clarity of video for home theater viewers is available utilizing a low cost enhancement chip (DigiVision DV1000). The impact of such a device on the preference for enhanced video was tested for people with impaired vision and normally sighted viewers. Viewers with impaired vision preferred the enhancement effects more than normally sighted viewers. Preference for enhancement was correlated with loss in contrast sensitivity and visual acuity. Preference increased with increased enhancement settings (designed for those with normal vision) in the group with vision impairments. This suggests that higher enhancement levels may be of even greater benefit, and a similar product could be designed to meet the needs of the large, growing population of elderly television viewers with impaired vision.
摘要
利用一种低成本增强芯片（DigiVision DV1000），可以获得提高家庭影院观众视频清晰度的技术。针对视力受损人群和视力正常的观众，测试了这种设备对增强视频偏好的影响。视力受损的观众比视力正常的观众更喜欢增强效果。对增强效果的偏好与对比敏感度和视力的下降相关。在视力受损组中，随着增强设置（为视力正常者设计）的增加，偏好也增加。这表明更高的增强水平可能会带来更大的益处，并且可以设计类似的产品来满足大量不断增长的视力受损老年电视观众的需求。
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