摘要
介绍了基于天球理论的太阳位置计算方法并给出了具体表达形式,实现对太阳方位角和高度角的实时计算。通过与实际测量得出的太阳位置的比较和分析,证明该公式能够实时准确的计算太阳位置,且易于编程。同时,将该方法确定的太阳位置应用于实际拍摄的图像,以确定图像的实际光照方向。
The computation for solar position based on the celestial sphere theory is introduced and the specific expression is given.It has realized the calculation of solar elevation and azimuth angle in real time.The algorithm has small error,real-time and easy programming by compared with the actual measured method.At the same time,one application is described to determine the illuminant direction of digital image.
出处
《电子测量技术》
2010年第11期87-89,93,共4页
Electronic Measurement Technology
关键词
太阳位置
太阳高度角
太阳方位角
图像光照方向
solar position
solar elevation angle
solar azimuth angle
illuminant direction of image
