Method And Apparatus For Calibrating Multi-Spectral Sampling System

A method for calibrating a multi-spectral sampling system, comprising steps of:

• sampling scene information of a scene under illumination of a light source by the multi-spectral sampling system to obtain a two-path multi-spectral image, wherein the two-path multi-spectral image comprises a multi-spectral image and a RGB color image, and the multi-spectral image consists of a plurality of sampling points;
• calibrating a spectrum of each of the plurality of sampling points according to multi-spectral information of the multi-spectral image and spectral signatures of the light source, so as to obtain a spatial location of each of the plurality of sampling points and a spectral wavelength corresponding to the spatial location of each of the plurality of sampling points;
• providing two scanning videos in different scanning directions, demonstrating the two scanning videos by a demonstrating device, and shooting the two scanning videos by the multi-spectral sampling system when the demonstrating device is demonstrating the two scanning videos, so as to obtain two two-path multi-spectral videos, wherein each of the two two-path multi-spectral video comprises a multi-spectral video and a RGB color video;
• and
• based on the spatial location of each of the plurality of sampling points, obtaining a matching point of each of the plurality of sampling points according to the two two-path multi-spectral videos, so as to implement a spatial location calibration of the multi-spectral sampling system.