室内眩光的视觉模型研究

项目名称： 室内眩光的视觉模型研究

项目编号： No.61475142

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 罗明

作者单位： 浙江大学

项目金额： 86万元

中文摘要： 本项目旨在开发可评估室内照明光源品质的不适眩光模型。不适眩光是工作及生活中普遍接触到的一类眩光，也是本项目的研究内容。一般现有的眩光模型均针对传统光源或日光开发。由于新兴的LED光源具有面积小（小于现有模型适用范围），且其颜色，光谱，及亮度均可调节等特性完全不同于传统光源或日光，另外LED的排列方式的改变，静态或动态呈现方式的改变均会产生不同的眩光效果，故目前的模型不适用于LED光源。项目拟设计完整的LED眩光实验环境，以真实环境的高动态范围图像作为输入，利用人眼视觉模型将其转化为知觉图像，考虑亮度信息的基础上引入色度信息来区分眩光源和背景，建立新的评价模型。同时邀请观测者对实验环境的眩光做主观评价，用以验证及完善所建立模型，最终获得稳定可信的室内不适眩光模型。

中文关键词： 眩光模型；发光二极管；色貌模型；色调映射；心理物理实验

英文摘要： The goal of the project is to develop a discomfort glare model which can accurately predict the quality of light sources. Glare is the undesired light to reach our eyes. It is divided into two main types: disability glare and discomfort glare, which can impair the colour vision system or produce discomfort respectively, and affect the safety, health and comfort of our life. So, it is essential to avoid glare for all lighting products. The discomfort glare will be investigated in the proposed project. A proper lighting should keep the glare at minimum. It is a challenge topic. Some models have been widely used for evaluating glare for mainly large sized uniform sources. These models predict glare considering the size, illuminance of source and background, and line of sight. However, they do not work well for the new sources such as LED due to the property of small size, non-uniform pattern, varying colour, spectral power distribution and illuminance. The model developed will take into those properties. In addition, the model will be based on human colour vision and tone mapping to take input as images of a real scene to be estimated. Psychophysical experiments will be designed and conducted to invite normal colour vision observers to judge the extent of discomfort glare in a real room. The parameters of the LED glare sources will be designed and be used as glare source. The visual results will be used to test various glare models developed together with the existing ones.

英文关键词： glare model;LED source;color appearance model;tone mapping;psychophysics