为了获得大视场高分辨率的图像，提出了多镜头成像拼接的方法，并将该方法应用于经纬仪系统中。首先，结合经纬仪特点对几种可能的拼接形式进行了分析，并以4个镜头十字型两维拼接形式为例，建立了数学模型。然后，确定拼接镜头间的夹角以及相对位置关系，同时对经纬仪跟踪架的结构尺寸提出设计要求。最后，对拼接夹角精度进行复核标定。设计结果表明：在相机靶面像元数为1 280×1 024，像元尺寸为12 μm，镜头焦距为400 mm的条件下，可获得方位方向最大6.6°，俯仰方向最大3.52°的视场。两个方向的拼接夹角的最大误差均在10″以内，能够满足图像拼接时单幅图像坐标转换到经纬仪坐标系下数据处理的需要，达到了增大视场的目的，扩展了经纬仪的应用领域。

A multi-lens imaging stitching method was come up for opto-electronic theodolites to achieve the images with high resolution and large fields of view.Several possible stitching forms were analyzed on the basis of the characteristics of opto-electronic theodolites, then a mathematics model was established by taking the four-lens lay cross stitching for an example.Furthermore, the inclination between the lens and the relative positions was decided and the sizes of azimuth and elevation systems in the gimbal of an opto-electronic theodolite were given.Finally, the precision of the stitching inclination was calibrated.The design result shows that the biggest fields of view are 6.6° and 3.52° in azimuth and elevation,respectively, when the pixel quantity is 1 280×1 024 in the camera target plane, the pixel size is 12 μm and the focus length is 400 mm.The inclination errors in two directions are all no more than 10″, which can meet the requirements of data processing for transforming a single image coordinate into opto-electronic theodolite coordinates in image stitching.The method enlarges the fields of view and expands the application areas of opto-electronic theodolites.