FIELD: computing; counting.
SUBSTANCE: invention relates to image analysis techniques. Method for identifying keypoints in a digital image comprising a set of pixels is proposed, wherein each pixel has associated thereto a respective value of an image representative parameter. Said method comprises a step of approximating a filtered image, wherein said filtered image depends on a filtering parameter and comprises, for each pixel of the image, a filtering function that depends on the filtering parameter to calculate a filtered value of the value of the representative parameter of the pixel. Said approximating comprises a step of generating a set of base filtered images, wherein each base filtered image is the image filtered with a respective value of the filtering parameter.
EFFECT: technical result is improved accuracy of identifying keypoints in a digital image comprising a set of pixels.
22 cl, 20 dwg
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