Scanning device and scanning method

The invention discloses a scanning device and a scanning method, and relates to the technical field of oral medicine, the scanning device comprises an image acquisition module, a parameter calibration module and an image processing module; the image acquisition module comprises a binocular vision measurement device, a reflector group and a scanning rod; the binocular vision measurement device is used for shooting images of the surface of the scanning rod, the reflector group, an intraoral alveolar ridge and teeth covered by the projection grating; the reflector group comprises at least one mirror surface, and the mirror surfaces are different in size and are respectively used for detecting buccal sides, lingual sides/palatal sides and mouth bases/palate sides of left and right dental arches; the parameter calibration module is used for calibrating the binocular vision measurement device; and the image processing module is used for unifying the coordinate system of the binocular vision measurement device based