Image color calibration method, three-dimensional scanning method and three-dimensional scanning system

The invention relates to an image color calibration method, a three-dimensional scanning method and a three-dimensional scanning system, and the method comprises the steps: determining a first mapping relation between a preset scanning distance and a preset color temperature compensation coefficient; acquiring three-dimensional scanning frame data, and calculating an actual scanning distance according to the three-dimensional scanning frame data; and determining a first color temperature compensation coefficient in the preset color temperature compensation coefficients based on the first mapping relation according to the actual scanning distance and the preset scanning distance, and performing color calibration processing on the three-dimensional scanning frame data according to the first color temperature compensation coefficient to obtain a target color calibration image. According to the invention, the problem of low accuracy of image color calibration is solved. 本申请涉及一种图像颜色校准方法、三维扫描方法和三维扫描系统，其中，该图像颜色校准方法包