Three-dimensional scanner, three-dimensional scanning system, and three-dimensional reconstruction method

A three-dimensional scanning system, comprising:

• a three-dimensional scanner;
• and
• an image processing device in communication connection with the three-dimensional scanner;
• wherein the three-dimensional comprises a projection device, an image acquisition device, and an optical path adjustment device;
• wherein the projection device comprises an emitting device, a collimating device, and a pattern forming device;
• wherein the three-dimensional scanner is configured to:
• emit preset light rays through the emitting device;
• perform uniform illumination processing on the preset light rays using collimating light;
• project, through the pattern forming device, the preset light rays after the uniform illumination processing as a structured light pattern;
• change, through the optical path adjustment device, a transmission path of the structured light pattern to project the structured light pattern onto a target object, and wherein the structured light pattern modulated by the target object is projected to the image acquisition device;
• spectrally split the structured light pattern modulated by the target object through the image acquisition device;
• capture a plurality of split structured light patterns through different cameras for 3D reconstruction, wherein the preset light rays comprise at least two types of monochromatic light rays;
• and
• wherein the image processing device is configured to:
• receive the plurality of split structured light patterns scanned by the three-dimensional scanner;
• and
• perform 3D reconstruction based on the plurality of split structured light patterns.