Among the coordinate systems commonly used in photogrammetry, which are transitional coordinate systems?

Image point coordinates are coordinates in the image plane coordinate system, and each image point corresponds to its actual coordinates (object coordinates). For example, if you take a photo of a house and find a corner in the photo, this corner has a coordinate (x, y) (two-dimensional) in the image plane coordinate system and a coordinate (x, y, z) (object coordinate, according to the actual definition) in the actual three-dimensional space.