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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >Potential Applications of Thermal Fisheye Imagery in Urban Environments
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Potential Applications of Thermal Fisheye Imagery in Urban Environments

机译：鱼眼热成像在城市环境中的潜在应用

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摘要

The sky-view factor is a commonly used parameter in urban climatology; but to date, no completely satisfactory technique has yet been developed for its calculation. This letter investigates the potential of a prototype thermal fisheye camera, originally developed for use in the CLOUDMAP2 project, to produce fisheye imagery suitable for sky-view factor analysis. The camera distinguishes between the fraction of cold-space background and warm obstructions (e.g., buildings, trees, and cloud) from which the sky-view factor can be calculated. Early results are promising with excellent segmentation results obtained under clear skies, although the techniques are currently less reliable when clouds are visible in the field of view. However, this is demonstrated to be an advantage as the camera can also be used to simultaneously measure other parameters such as solar-tracks and "local" cloud fractions. The preliminary results indicate potential for the use of the camera for modeling studies in urban environments
机译：天空因子是城市气候中常用的参数；但是到目前为止，还没有开发出完全令人满意的技术来进行计算。这封信调查了最初用于CLOUDMAP2项目的热鱼眼镜头原型相机的潜力，以产生适合于天空因素分析的鱼眼镜头图像。摄像机可以区分冷空背景和温暖障碍物（例如建筑物，树木和云）的比例，从而可以计算出天空视野因子。早期结果令人鼓舞，在晴朗的天空下可获得出色的分割效果，尽管当视野中可见云层时，目前的技术可靠性较低。但是，这被证明是一个优势，因为该相机还可用于同时测量其他参数，例如太阳径和“局部”云量。初步结果表明，使用相机进行城市环境建模研究的潜力

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