中文摘要：

将对偶四元数应用于摄影测量中,提出了一种基于单位对偶四元数的航空影像区域网平差解算方法。相比于常规的平差方法和四元数方法,该算法的最大特点是将影像的摄站位置和姿态以一个单位对偶四元数整体表示,从而构建基于对偶四元数的区域网平差模型,并采用具有约束条件的参数平差进行解算。利用两个地区不同比例尺的实际航空影像数据进行实验,结果表明,该算法的平差精度与常规的区域网平差方法相当,对影像比例尺及控制点的数量与分布的需求也与常规的平差方法基本相同,为对当前轻小平台获取航空影像进行摄影测量处理提供了一条新的技术思路。

英文摘要：

We present a bundle block adjustment method of aerial images based on unit dual quaternion.The major characteristic of this method is to use dual quaternion to represent the exterior orientation elements（including camera station and image attitude） of the images,and establish the basic mathematic model based on unit dual quaternion.Furthermore,parameter adjustment with constrains is used to solve the mathematic model.Real aerial images with different images scale are used to test this method and the conventional bundle block adjustment.The experimental results show that the adjustment accuracy of this new method is as much as that of the conventional method,and the requirement of the images scale and the number and distribution of ground control points is almost the same as the conventional method.This method will provide a new technique for photogrammetry processing of the aerial images acquired by light-small sensor platforms.