What is the relationship between photography and medical imaging?

Photography is based on optics, and medical images are based on various theories, which are basically not optics. (Ultrasonic acoustic impedance, X-ray absorption rate, atomic nuclear magnetic resonance vibration, etc. ), * * * is very similar. In medical images, we also pay attention to the geometric resolution (pixel/sharpness) and density resolution (color/gray scale) of images. Insufficient photographic time flux will increase noise, and the same problem will occur in X-ray photos. Optical transfer function can be used for X-ray photography and visible light photography. Of course, when it comes to CT and MRI, the connection with visible light photography is much smaller. CT and MR are computed digital (array) images, which are essentially different from visible light digital photography. In our medical imaging circle, many people like to play photography, and they play well, which shows their similarity.