Patent ID: 11920981
Assignee: BEIJING SEETRUM TECHNOLOGY CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. The spectral restoring method according to claim 1, wherein the first constraint equation is that the product of the channel restoring vector ck, a spectral response tensor block Â corresponding to the primitive restoring function in the spectral response tensor, and the channel standard spectrum sk is equal to one, represented as:

ckÂsk=1

where Â is a spectral response tensor block A(i−p:i+p,j−p:j+p,:) of the spectral response tensor of the spectral imaging device for restoring Xi,j, and first and second orders of the tensor block are rearranged to the same order to form a matrix in the shape of (a2,l), and the spectral response tensor is represented as a tensor A including three dimensions of an image width w, an image height h and a calibration resolution l.