Tongue pictographic three-dimensional structure detector based on spatial light modulator

The invention discloses a tongue pictographic three-dimensional structure detector based on a spatial light modulator, and belongs to the field of medical optics. The tongue pictographic three-dimensional structure detector comprises a laser device which is configured to be a light source for providing incident laser; the SLM regulation and control unit is configured to be used for modulating incident laser into a projection pattern matched with the size of the lingual surface of the subject, and mapping the projection pattern to the lingual surface of the subject; an image detection unit configured to acquire a light intensity distribution on the lingual surface of the subject; and the FTP reconstruction module is configured to perform three-dimensional reconstruction on the lingual surface of the subject through Fourier transform profilometry based on the projection pattern and the light intensity distribution so as to obtain a lingual surface three-dimensional shape distribution diagram of the subject. 本发明