摘要
阐述了通过图像采集进行天空亮度分布研究的方法,装有鱼眼镜头的数码相机通过合理曝光长期连续地采集天空图像,用程序从采集到的天空图像信息中获取天空亮度分布情况,经统计得出三类标准天空出现的近似频率,并以反映其出现频率的线性分量进行叠加后分时段得出华南区的典型天空亮度分布模型(CSRS)。最后通过模拟计算对CSRS模型进行了检验。
This article describes a method of observing sky luminance distribution via sky images.A fisheye lens DSLR camera was used to capture sky images continuously with a proper exposure.And a program was developed to obtain sky luminance distribution from the captured images.The approximate occurrences of three standard sky types were obtained through statistical processing.And then the linear components reflecting each occurrence were superimposed to obtain the representative sky models （ CSRS） of South China.At last, a series of simulations were conducted to verify the obtained CSRS models.
出处
《照明工程学报》
2015年第1期1-5,共5页
China Illuminating Engineering Journal
基金
国家自然科学基金青年基金项目(51208205)
亚热带建筑科学国家重点实验室自主课题(2013ZC17)
广东省高校优秀青年创新人才培养计划资助项目(2012WYM_0051)
关键词
典型天空
建筑采光
天空亮度分布
representative sky
building daylight
sky luminance distribution
