透水航空摄影曝光因子的确定

The Determination of Exposure Factor in Pentrate Water Aerophotography

曝光因子的确定是航空摄影中的一个关键技术。本文根据透水航空摄影的特点，推导了海底景物的亮度模型，在分析曝光因素的基础上，提出了由海底景物亮度计算曝光时间的方法，实践证明，该方法是可行的。

The determination of exposure factor is the important technique in the aerophotography. The luminance model of sea bottom scenery is deduced in terms of characteristics of penetrating water aerophotography. The method of computing exposure time with luminance of sea bottom scenery is presented on the basis of analysing the exposure factor.The method is effective through the experiments.