CORRECTION OF MULTIPLE-BEAM INTERFERENCE AND RECOGNITION OF MATERIALS BASED ON STRUCTURED LIGHTING WITHOUT REDUCING THE FRAME RATE Russian patent published in 2022 - IPC G06T5/20 

FIELD: image data processing.

SUBSTANCE: invention relates to processing two-dimensional (2D) and three-dimensional (3D) images. Method for correcting multiple-beam interference in an image includes the following stages: simultaneously illuminating the scene with at least two light sources, wherein each light source emits structured light; capturing an image of the scene with an imaging sensor through a filter array, wherein one pixel of the imaging sensor captures the image through one filter of the filter array, the filter array comprises filter sets, the number of filter sets corresponds to the number of light sources, one set of filters transmits light only from one corresponding light source, the sides of each filter from one filter set are adjacent to the sides of filters from (an)other filter set(s), other than said one filter set, and neighboring pixels capturing the image through different filters herein form a combined pixel, the number of pixels wherein is equal to or greater than the number of light sources; for each pixel, calculating the values of intensity of the direct and global components of the light received by the pixel, based on the system of equations composed for each combined pixel, wherein each equation in the system of equations is composed for one pixel from the pixels of the combined pixel and constitutes the total intensity of the light received by the pixel, which is the sum of the intensities of the direct and global components of the light received by the pixel; and, for each pixel, correcting the image by assigning the calculated value of intensity of the direct component thereof to each pixel in order to obtain a corrected image.

EFFECT: improved image quality and ensured implementation of operations in real time without reducing the frame rate.

35 cl, 15 dwg