The invention relates to a 3D camera
galvanometer module motion nonlinear error calibration method, and the method comprises the steps: determining a target
galvanometer delay parameter enabling the center position of the
reciprocating motion of a
galvanometer motor to be aligned under the preset initial camera
exposure time and initial galvanometer motion time, and adjusting the stepping modification camera
exposure time and galvanometer motion time, the corresponding relation between camera
exposure time and galvanometer
delay parameters is obtained, the lightening time of the
laser at different positions is determined with the minimum nonlinear error of
reciprocating motion of the galvanometer motor as the target under different camera exposure time and galvanometer motion time, and the
laser is controlled according to the lightening time. And
laser compensation parameters when the galvanometer motor operates to different positions at different galvanometer movement speeds are obtained. According to the application, the problem of inaccurate imaging caused by nonlinear errors existing in positive and negative motion of galvanometer
structured light projection in related technologies is solved, and the nonlinear errors existing in the positive and negative motion are eliminated through the galvanometer
delay parameter and the laser compensation parameter.