This can be a tedious process because the first time you create the plane, you have to rotate the camera and change the focal length at the same time to get a good match.
这个过程可能很乏味，因为你要先建立平面，还不得不去旋转摄像机，并调节焦距以得到好的匹配效果。
2
By rotating the camera slowly try to match our 3d plane with the one in the reference. Also scale the plane and make it longer.
我们得慢慢旋转摄像机以将我们的3d平面匹配到参考图中，另外还要将它拉长些。
3
The image motion is obtained by the gray project and then the motion data is accurately detected by the grid detection and bit planematch method.