A camshaft adjuster including a hub for securing the camshaft adjuster to one end of a camshaft is provided. A system for visualization of a property of objects is also described. Then, generating a radiation image of the same type as the input radiation image for a given subject, and inputting the radiation image to the teacher trained filter to form a radiation image of the given subject compensated for image quality degradation with the particular region highlighted. An alignment jig may also be provided for aligning the rod with the receiving bore during installation.