18-01-2018 дата публикации
Номер: US20180020129A1
Принадлежит:
The present invention is a method of removing the illumination and background spectral components thus isolating spectra from multi-spectral and hyper-spectral data cubes. The invention accomplishes this by first balancing a reference and sample data cubes for each spectra associated with each location, or pixel/voxel, in the spatial image. The set of residual spectra produced in the balancing step is used to obtain and correct a new set of reference spectra that is used to remove the illumination and background components in a sample data cube. 1. A method for removing spectral components of illumination energy and background from multi-spectral and hyper-spectral data cubes containing spatial and spectral images , the method comprising:aligning a data cube of a sample spectral camera with a data cube of a reference spectral camera;{'sub': se', 'se', 'se', 're', 're', 're, 'obtaining an empty sample data cube (x, y, λ) from said sample spectral camera directed at a first area and an empty reference data cube (x, y, λ) from said reference spectral camera directed at a second area;'}{'sub': re', 're', 're', 'se', 'se', 'se', 'R', 'R', 'R, 'subtracting a spectral intensity of each pixel of said empty reference data cube (x, y, λ) from a spectral intensity of a corresponding pixel of said empty sample data cube (x, y, λ) to obtain a residual spectral data cube (x, y, λ);'}{'sub': R', 'R', 'R', 're', 're', 're', 're', 're', 're', 'R', 'R', 'R, 'adding the spectral intensity of each pixel of the residual spectral data cube (x, y, λ) to the spectral intensity of a corresponding pixel of said empty reference data cube (x, y, λ) to obtain a resulting reference data cube [(x, y, λ)+(x, y, λ)];'}{'sub': re', 're', 're', 'R', 'R', 'R', 'se', 'se', 'se, 'subtracting the intensity of each pixel of the resulting reference data cube [(x, y, λ)+(x, y, λ)] from the intensity of a corresponding pixel of said empty sample data cube (x, y, λ) to obtain a zero order spectra data cube ...
Подробнее
