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公开(公告)号：US20160269630A1
公开(公告)日：2016-09-15
申请号：US14831859
申请日：2015-08-20
发明人： Yun-Shang Chiou
CPC分类号： G01J1/4214 , G01J1/0242 , G01J1/0418 , G01J1/0437 , G01J2001/4266
摘要： A sky luminance mapping system includes a camera unit, two pyranometer units and a processing unit. Camera unit includes a fisheye lens to shoot image of sky dome and is equipped with light-shading devices which block the sun from the camera unit corresponding to instant location of the sun at instant time. First pyranometer unit measures daylight illuminance from the sky dome and outputs first intensity signal while the light-shading device is applied to block the sun. Second pyranometer unit measures daylight illuminance from the sky dome and outputs second intensity signal without blocking the sun. A reference intensity value is obtained by subtracting a value of the first intensity signal from a value of the second intensity signal. According to the value of the first intensity signal and the reference intensity value, a total luminance of and the luminance distribution in the image of the sky dome are corrected.
摘要翻译： 天空亮度映射系统包括摄像机单元，两个测角仪单元和一个处理单元。 相机单元包括一个鱼眼镜头，用于拍摄天空圆顶的图像，并配备了遮光装置，可在瞬间将太阳从相机单元中对应于即时定位。 第一台测角仪测量天空圆顶的日光照度，并在遮光装置遮挡太阳时输出第一强度信号。 第二台太阳辐射计单位测量天空圆顶的日光照度，并输出第二强度信号而不遮挡太阳。 通过从第二强度信号的值减去第一强度信号的值来获得参考强度值。 根据第一强度信号和基准亮度值的值，校正天空圆顶的图像的总亮度和亮度分布。
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公开(公告)号：US09829376B2
公开(公告)日：2017-11-28
申请号：US14831859
申请日：2015-08-20
发明人： Yun-Shang Chiou
CPC分类号： G01J1/4214 , G01J1/0242 , G01J1/0418 , G01J1/0437 , G01J2001/4266
摘要： A sky luminance mapping system includes a camera unit, two pyranometer units and a processing unit. Camera unit includes a fisheye lens to shoot image of sky dome and is equipped with light-shading devices which block the sun from the camera unit corresponding to instant location of the sun at instant time. First pyranometer unit measures daylight illuminance from the sky dome and outputs first intensity signal while the light-shading device is applied to block the sun. Second pyranometer unit measures daylight illuminance from the sky dome and outputs second intensity signal without blocking the sun. A reference intensity value is obtained by subtracting a value of the first intensity signal from a value of the second intensity signal. According to the value of the first intensity signal and the reference intensity value, a total luminance of and the luminance distribution in the image of the sky dome are corrected.
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