DEVICE FOR COMPARING DIGITAL HYPERSPECTRAL ASTRONOMICAL IMAGES Russian patent published in 2024 - IPC G06T7/35 

FIELD: computer engineering.

SUBSTANCE: invention relates to computer engineering and can be used for hardware detection of differences in context-related (content) graphic images. Device for comparing digital hyperspectral astronomical images comprises a signal input unit equivalent to a color depth value – the number of bits allocated for encoding one spectral component of an image pixel; unit for inputting a signal equivalent to the value of the number of pixels over the width of the image; unit for inputting a signal equivalent to the value of the number of pixels along the height of the image; positive signal level button (power button); memory unit for one spectral component of the first image; memory unit for one spectral component of the second image; double signal single level input unit; multiplication unit – multiplier; two relays with closing contact; power supply unit; trigger counter; two subtraction units – subtractors; exponentiation unit; single signal level input unit; comparison unit – comparator; squaring unit – squaring device; relay with NC contact; addition unit – adder; two division units – dividers; square root calculation unit; decimal logarithm unit; unit for multiplying by 20; display unit for displaying a numerical measure of similarity of images and organizing links between them allows calculating a measure of the peak ratio of the brightness level of a pixel to the weighted average pairwise difference in brightness of all pixels of the compared images.

EFFECT: creation of a device for calculating a measure of the peak ratio of the brightness level of a pixel to the weighted average pairwise difference of brightness of all pixels of the compared images, which enables to compare two hyperspectral astronomical images using a quantitative measure; this enables to obtain not a subjective, but an objective assessment of similarity.

1 cl, 1 dwg, 1 tbl