Patents by Inventor Dmitry Valerevich POLEVOY

Dmitry Valerevich POLEVOY has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230085858
    Abstract: A method for detecting security holograms on documents in a video stream is disclosed, including: searching for interest points and calculating descriptors in a frame; filtering of interest points in the previous frame so that only points located inside the quadrangle of the outer borders of the document remain; matching the descriptors of interest points of the current and previous frames; application of an algorithm for estimating the parameters of projective transformation between the frames; projective transformation of the quadrangle of the outer boundaries of the document from the previous frame to obtain the outer boundaries of the document in the current frame; document image normalization; calculating the color saturation and hue; updating the saturation and hue values; further considering the pixels of the normalized document image with brightness values not exceeding a preset threshold; filtration of the obtained image.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 23, 2023
    Inventors: Vladimir Viktorovich ARLAZAROV, Leisan Ildarovna KOLIASKINA, Dmitry Petrovich NIKOLAEV, Dmitry Valerevich POLEVOY, Daniil Vyacheslavovi?h TROPIN, Sergey Aleksandrovich USILIN