Study on Threshold Patterns with Varying Illumination Using 1.3m Imaging System
Study on Threshold Patterns with Varying Illumination Using 1.3m Imaging System作者机构：不详
出 版 物：《Intelligent Information Management》 (智能信息管理（英文）)
年 卷 期：2010年第2卷第1期
页 面：21-25页
学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题：perception threshold contrast sensitivity
摘 要：Human eye can generally distinguish objects from each other or from their background, if the difference in luminance or color is large. This paper concentrates on the luminance portion and makes an attempt to characterize perception detection to varying contrast which is explained in contrast sensitivity terms. This is accomplished using sinusoidal test patterns. Influence of illumination on perception threshold is also shown in this paper. Practical measurements are done using a calibrated monitor with image capture accomplished with a 1/4 1.3M camera module system.
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