彩色背景下人类视觉对比度的测量

Measuring the Contrast Resolution Limits of Human Vision Based on the Chroma Background

目的:本文报道了基于现代数字图像处理的红绿蓝黄青紫六颜色的测定方法,测试模型和测试结果,并获得了人类视觉对比度分辨率阈值随背景色彩变化而变化的函数关系。方法:自愿受试者50名,分别对不同颜色背景色度进行视觉对比度测试。结果:在背景色度从0到255变化过程中,人类视觉红绿蓝黄青紫六颜色的对比度阈值开始迅速下降,达到一个最低值后又逐渐升高。结论:该研究结果将为弥补和利用人类视觉对比度分辨率限制产生与之相关的理论、技术和产业,比如为隐身,隐形,和反隐身,反隐形以及不依赖红外技术的其他相关技术和应用奠定相应的理论基础和相关的生理学基础。

Objective： This paper reports a modem method for measuring the contrast resolution limit of human vision based on digital image processing, and we present the measured models and their results. Results： The function relationships of contrast resolution limit varying with ehroma background from 0 to 255.The results show the contrast resolution thresholds begin to decline rapidly,untill reach aminimum value and then gradually increase. Methods： The test of contrast resolution limits of hu- man vision based on the chroma background was respectively compared in 50 healthy volunteers. Conclusions： It can be ex- pected that such investigations with regard to human vision will establish the physiological fundation of the theories and techniques in hiding bodies and hiding figures,in anti-hiding bodies and anti-hiding figures,in the night vision system independent of infrared, as well as in their relative industries.