基于相关色温的日光光谱功率分布重建:CIE方法与局部程序在评估非图像形成效果中的比较研究

IF 2.6 2区 工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY Leukos Pub Date : 2022-02-15 DOI:10.1080/15502724.2021.1989310
A. Diakite-Kortlever, Nils Weber, M. Knoop
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引用次数: 5

摘要

在规划非成像(NIF)响应时,关于日光的光谱和空间分辨率信息至关重要。然而,由于高端光谱测量设备的高昂初始成本和复杂的现场维护,此类数据的可用性很少。CIE(国际委员会Éclairage)重建程序允许从色度坐标或相关色温()推导日光光谱功率分布(SPD)。然而,一些研究表明,日光轨迹和重建过程都是错误的,特别是具有更高的spd不能准确地再现。本文研究了日光SPD的重建精度,并将研究结果与NIF效应联系起来。该分析包括一项比较研究,以确定CIE程序与两种局部重建程序相比的准确性,以及一项灵敏度研究,以检验准确性对NIF反应评估的影响,NIF反应由所有五种视网膜光感受器代表,并以发光辐射的α-视效表示。结果表明,一个局部过程,调整日光轨迹和日光的主成分,优于CIE重建方法。然而,重建精度的提高对NIF评估没有影响。α-opic的RSMPE不超过4%。实际上,这意味着具有成本效益的传感器和具有单一值(相关色温)的天空模型中光谱特性的表示可以用于NIF目的。这些发现通过对用于确定日光NIF效应的简化方法的理解开辟了新的见解,从而将理论和实践联系起来。使用基于相关色温()的本地化过程来定义光谱功率分布(SPD)优于CIE方法。精度取决于计算过程,而不是日光轨迹的位置。更高的精度并不影响用于定义非像形成(NIF)效应的α-视响应。研究结果证实了日光spd的简化测量和表示方法的适用性。可用于在规划软件中表示日光SPD,以评估NIF效果。
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Reconstruction of Daylight Spectral Power Distribution Based on Correlated Color Temperature: A Comparative Study between the CIE Approach and Localized Procedures in Assessing Non-image Forming Effects
ABSTRACT Spectrally and spatially resolved information on daylight is critically important when planning for non-image forming (NIF) responses. Nevertheless, the availability of such data is scarce given the high initial costs and complex on-site maintenance of high-end spectral measurement devices. The CIE (Commission Internationale de l’Éclairage) reconstruction procedure allows for the derivation of the daylight spectral power distribution (SPD) from the chromaticity coordinates or the correlated color temperature ( ). However, several studies have suggested that both the daylight locus and the reconstruction procedure are erroneous, and specifically SPDs with a higher cannot be reproduced accurately. This paper studies the reconstruction accuracy of the SPD of daylight, and contextualizes the findings in relation to NIF effects. The analysis comprises a comparative study to determine the accuracy of the CIE procedure compared to two localized reconstruction procedures, and a sensitivity study to examine the impact of accuracy on the assessment of NIF responses, as represented by all five retinal photoreceptors and expressed in the α-opic efficacy of luminous radiation. The results indicated that a localized procedure, adjusting both the daylight locus and the PCA components of daylight, outperformed the CIE reconstruction method. However, improvement in the reconstruction accuracy had no effect on NIF assessment. The RSMPE for α-opic quantities did not exceed 4% for any procedure. In practical terms, this implies that cost-effective sensors and the representation of spectral properties in sky models with a single value – the correlated color temperature – can be used for NIF purposes. These findings bridge theory and practice by opening up new insights into the understanding of simplified methods used to determine NIF effects of daylight. HIGHLIGHTS Using a localized procedure to define spectral power distribution (SPD) based on correlated color temperature ( ) outperforms the CIE method. Accuracy depends on the computation procedure rather than the daylight locus location. Higher accuracy does not affect the α-opic responses used in defining non-image forming (NIF) effects. Findings confirm the applicability of simplified measuring and representation methods for daylight SPDs. can be used to represent daylight SPD in planning software to assess NIF effects.
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来源期刊
Leukos
Leukos 工程技术-光学
CiteScore
7.60
自引率
5.60%
发文量
19
审稿时长
>12 weeks
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