遥感中定向反射特性的使用和测定

THE USE AND MEASUREMENT OF DIRECTIONAL REFLECTANCE CHARACTERISTICS IN REMOTE SENSING

摘要: 本文通过分析,说明了区分双向反射因子和半球反射因子概念的重要性以及误用它们所会造成的误差。提出了一种简单、精确的标定参考反射板双向反射因子的方法。详细讨论了野外地物双向反射因子的测定问题及测定误差。

Abstract: Reveals the importance of differentiating bidirectional reflectance factor ( BRF ) from hemispherical reflectance factor and shows the errors caused by the confusion.A simple and accurate method to calibrate the BRF of a reference panel in laboratory is recommended. BRF measurement in the field and error analyses are discussed in detail.