The main results are: Assuming the camera undergoes two sets of translations, of which the corresponding rotation axes of camera are not parallel, then Euclidean geometry of a scene can be reconstructed linearly from four point correspondences.

• 当摄像机作两组平移运动时 ,若在两组平移运动之间摄像机具有不同的姿态 ,则从 4对图像对应点可以线性地重建场景的欧氏几何。