Patent ID: 8284279

Claim:
A multispectral imaging method comprising: determining an on-off combination of a plurality of light sources illuminating a scene; illuminating the scene with the light sources according to the on-off combination selected on the basis of a first control signal generated by a microcontroller; capturing an image of the scene by operating a camera on the basis of a second control signal synchronized with the first control signal; determining a plurality of spectral basis functions and weights of the spectral basis functions; and acquiring a continuous spectral reflectance by summing values obtained by multiplying the spectral basis functions and respective weights, wherein the light sources comprise at least one light-emitting diode cluster and the camera comprises at least one RGB camera, wherein the on-off combination of the light sources to be illuminated to the scene is determined by a weight matrix minimizing offset of a spectral reflectance of a predetermined representative material to the spectral basis functions, camera channel, spectra of the light sources, and number of frames (N).