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Proceedings of two CIE Workshops on photometric measurements systems for road lighting installations 两次CIE道路照明装置光度测量系统研讨会记录
发布日期: 2002-01-01
电荷耦合器件(CCD)探测器和帧捕捉器在图像处理中的新兴应用显然带来了挑战,即在道路上相对较大的视野内捕捉所有可用的光度信息,但空间分辨率与传统亮度计相同。大多数传统的亮度计只对环境中相对较小的区域进行采样。使用CCD阵列,可以捕捉大型场景并将其转换为数字光度信息。由于此类场景的复杂性,无法使用传统的光度技术,因为获取大量测量数据所需的人力和时间将是不可能的。与单细胞光电探测器相比,基于CCD的光度计不仅要处理光谱匹配、均匀性和线性问题(仅提及最重要的问题),还要处理其他问题,如视角、渐晕等。 在90年代中期,CIE技术委员会4-26“道路照明装置光度测量系统”第4分部“交通照明和信号”专门为此主题举办了两次研讨会和相互比较。这些会议记录中包含的研讨会材料概述了不同国家用于测量道路照明光度量的移动和静态系统的不同实现类型。实现的系统可以将测量的光度量扩展到亮度和照度之外,以确定色度坐标、评估残疾眩光或分析移动观察者的理论方面。会议记录包含发言者提供的文件文本。这份出版物共有114页。
The emerging use of Charge Coupled Device (CCD) detectors and frame grabbers in image processing evidently created the challenge to capture all of the available photometric information within a relatively large field of view on the road, but to the same level of spatial resolution as that of a conventional luminance-meter. Most conventional luminance-meters sample only a relatively small area of the environment. Using CCD arrays, large scenes can be captured and converted to digital photometric information. The complexity of such scenes preclude the use of conventional photometric technology since the amount of labour and time involved in obtaining the huge number of measurement data would be prohibitive. CCD based photometers compared to the single cell photodetectors have to cope not only with the spectral matching, uniformity and linearity problem, to mention only the most important ones, but with additional problems, like viewing angle, vignetting, etc.In the mid 90's the CIE Technical Committee 4-26 "Systems for Measurement of Photometric Quantities of Road Lighting Installations" of the CIE Division 4 "Lighting and Signalling for Transport" dedicated two workshops and intercomparisons to this topic. The material of the workshops, included in these proceedings, gives an overview on the different types of realization of the mobile and static systems for the measurement of photometric quantities of road lighting in different countries. The realized systems gave the possibility to extend the measured photometric quantities beyond luminance and illuminance to determine chromaticity coordinates, to evaluate disability glare or to analyse the theoretical aspects of the moving observer.The Proceedings contain the text of the papers provided by the speakers. The publication consists of 114 pages.
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发布单位或类别: 国际组织-国际照明委员会
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