1.The number of pass points used in a stereopair is not confined to six, it may be fourteen, or even more, but the normal equations are only five.
象对中的数不限于六个,可增多个或更多,但仍仅只有五个法方程式。
2.An analysis was performed of the method and characteristics of SPOT stereopair for DEM generation and some other methods for underlying surface information extraction currently used in engineering.