OBJECT PERCEPTION BY VISUALLY-IMPAIRED PEOPLE AT DIFFERENT LIGHT LEVELS
OBJECT PERCEPTION BY VISUALLY-IMPAIRED PEOPLE AT DIFFERENT LIGHT LEVELS
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DOI：
10.1016/0042-6989(94)00183-m
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发表时间：
1995-01-01
期刊：
影响因子：
1.8
通讯作者：
KOOIJMAN, AC
中科院分区：
文献类型：
--
作者：
CORNELISSEN, FW;BOOTSMA, A;KOOIJMAN, AC
我们研究了光照水平与视障受试者在真实视觉环境中检测和识别物体的能力之间的关系。受试者经常在正常受试者达到最大表现的光线水平下继续表现出实质性的进步。综合对比敏感度是对比敏感度功能的一个综合衡量指标，它比视觉敏感度或峰值对比敏感度更能预测性能。然而，当后两者结合起来预测性能时，我们得出的结论是，当我们试图为定向和日常活动找到最佳照明时，我们应该从视觉敏锐度和对比度敏感度两个方面进行优化。
We investigated the relationship between the illumination level and the ability of visually impaired subjects to detect and recognize objects in a realistic visual environment. Subjects often continued to show substantial improvement at light levels where normal subjects have reached maximum performance. Integrated contrast sensitivity, a summary measure for the contrast sensitivity function, was better at predicting performance than either visual acuity or peak contrast sensitivity. However, when combined, the latter two predicted performance as well as the former, We conclude that when we try to find the best illumination for orientation and day-to-day activities we should optimize it for both visual acuity and contrast sensitivity.