Describe the significance of photogrammetry continuous images to relative orientation elements?

1. External orientation element: includes information such as camera position, attitude and orientation. Through accurate calculation, the relative position and direction between two images can be determined.

2. Internal orientation elements: These elements include the internal parameters of the camera, such as the focal length and the position of the main point, which can help transform the image into data in the physical coordinate system.

3. Ground control points: This refers to the known coordinates of some points on the ground, which can be used to correct and register images, thus improving their spatial accuracy.