Perspective x-ray difference

Perspective is low-resolution imaging, generally using 0.5- 10 mA current. X-rays can be divided into perspective and co-emission. Low fluoroscopy dose and high radiography dose. The resolution of perspective can reach 20 line pairs /cm if digitized, and the digitization of filming can reach 35 line pairs /cm, 12 bits. If it is ordinary film shooting, it is 10 line pair /mm, 8 bits. Digital images can be post-processed.