Patents by Inventor Lucas Silva Figueiredo

Lucas Silva Figueiredo 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).

  • Read curved visual marks
    Patent number: 11790204
    Abstract: According to examples, an apparatus may include a processor and a non-transitory computer readable medium on which is stored instructions that may cause the processor to create a 2D reference mesh for an image of a curved visual mark, establish correspondences between finder pattern points in the curved visual mark and points of the 2D reference mesh, and determine a curved 3D mesh having a radius that results in a minimal reprojection error of a projective transform estimated for correspondences between the 2D reference mesh and the curved 3D mesh while the radius remains below a predefined upper limit. The instructions may also cause the processor to sample components of the curved visual mark in elements of the determined curved 3D mesh to form a 2D planar image of the curved visual mark and analyze the 2D planar image of the curved visual mark to read the curved visual mark.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: October 17, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Lucas Silva Figueiredo, João Marcelo Xavier Natario Teixeira, João Paulo Silva do Monte Lima, Lucas Oliveira Maggi, Thiago de Menezes Chaves, Francisco Paulo Magalhaes Simoes, Lucas Valença Rocha Martins de Albuquerque, Veronica Teichrieb, Lucio Polese Cossio
  • READ CURVED VISUAL MARKS
    Publication number: 20210303957
    Abstract: According to examples, an apparatus may include a processor and a non-transitory computer readable medium on which is stored instructions that may cause the processor to create a 2D reference mesh for an image of a curved visual mark, establish correspondences between finder pattern points in the curved visual mark and points of the 2D reference mesh, and determine a curved 3D mesh having a radius that results in a minimal reprojection error of a projective transform estimated for correspondences between the 2D reference mesh and the curved 3D mesh while the radius remains below a predefined upper limit. The instructions may also cause the processor to sample components of the curved visual mark in elements of the determined curved 3D mesh to form a 2D planar image of the curved visual mark and analyze the 2D planar image of the curved visual mark to read the curved visual mark.
    Type: Application
    Filed: December 20, 2018
    Publication date: September 30, 2021
    Applicants: Hewlett-Packard Development Company, L.P., Universidade Federal de Pernambuco
    Inventors: Lucas Silva Figueiredo, João Marcelo Xavier Natario Teixeira, João Paulo Silva do Monte Lima, Lucas Oliveira Maggi, Thiago de Menezes Chaves, Francisco Paulo Magalhaes Simoes, Lucas Valença Rocha Martins de Albuquerque, Veronica Teichrieb, Lucio Polese Cossio