METHOD FOR PROCESSING AND DISPLAYING SIGNALS OF MULTISPECTRAL IMAGES Russian patent published in 2022 - IPC H04N7/18 

FIELD: imaging technology.

SUBSTANCE: invention relates to the field of multispectral television, using the registration of reflected and radiated flux in several spectral regions (zones), including the ultraviolet, visible and infrared regions of the optical spectrum. It can be used to solve problems of selection, discrimination and recognition of objects by amplitude, spectral and spatial characteristics and find applications in systems of technical vision, video surveillance and object tracking. The result is achieved in that a method for forming and display color, multispectral and thermal images, enables the logging of input of radiant flux F(λ) within a wide spectral range, the formation of two separate radiant F₁(λ) and F₂ (λ) streams reflecting areas (zones) of the registration of the radiant flux Δλ₁ and Δλ₂, the conversion of radiant fluxes F₁(λ) and F₂(λ) and the formation on their basis in the first channel of image signals U_Δλ1(t), and in the second channel of image signals U_Δλ2(t), separate processing of the received signals of multispectral images U_Δλ1(t) and U_Δλ2(t), including amplification, conversion of analog signals into digital, digital aperture and gamma correction, when performing joint signal processing of multispectral images U_Δλ1(t) and U_Δλ2(t), including operations of summation and subtraction of two source signals, adding operations of their division and multiplication and in general form m-signals of multispectral images, which are fed to the inputs of a multichannel switch, further, any three signals are selected from all the signals and fed to the RGB inputs of a color video monitoring device for displaying and visual analysis of multispectral images in conditional colors, and also using these signals of multispectral images for automatic image analysis.

EFFECT: expanding the functionality and achieving an increase in the contrast of images for the selection and distinction of objects in the joint signal processing of multispectral images using two spectral areas (zones) of the registration of the radiant flux.

1 cl, 3 dwg, 6 tbl