Many phone photos of tables are actually taken at a slight 10-15 degree angle. For true "top" accuracy, the center of the lens must be directly above the center of the scene. If you see the side of objects (the edge of a cup, the front of a monitor), you need a different axis workflow.
, a script that allows users to import camera and image data from the open-source tool directly into 3ds Max. Autodesk Community, Autodesk Forums, Autodesk Forum The 3ds Max fSpy Importer fspy 3ds max top