依据星载单镜头TDI CCD立体相机立体成像及测绘要求,结合普通测绘相机内方位元素,提出了星载单镜头立体相机内方位元素由焦距、主点位置、立体成像角(前后视交角)、图像畸变等元素组成。给出了立体相机内方位元素测试的方法,针对立体相机成像特点给出了计算内方位元素的算法,对其进行了实际测量和验证,其测量结果符合设计要求。

According to the image and the survey request of the space-borne single lens TDI CCD stereo camera, combined with inner orientation elements of ordinary survey camera, the inner orientation elements of the space-borne single lens TDI CCD stereo camera are put forward. The inner orientation elements of the space-borne single lens TDI CCD stereo camera include the focal distance, the principal point position, the stereo image formation angle (front and back sight angle of intersection), image distortion and so on. The test method and the computation algorithm for the inner orientation elements of the TDI CCD stereo camera are given. By the practical measurement, the test method and the computation algorithm are proved availability and the results show that the design satisfies all requirements.