Method and apparatus for calibrating multi-spectral sampling system

摘要

A method and an apparatus for calibrating a multi-spectral sampling system are provided. The method includes: sampling scene information of a scene to obtain a two-path multi-spectral image comprising a multi-spectral image consisting of a plurality of sampling points and a RGB color image; calibrating a spectrum of each of the plurality of sampling points to obtain a spatial location thereof and a spectral wavelength corresponding to the spatial location; providing two scanning videos in different scanning directions, demonstrating and shooting the two scanning videos to obtain two two-path multi-spectral videos, in which each 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, so as to implement a spatial location calibration of the multi-spectral sampling system.

主权项

1. 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.