Patents by Inventor Jan SPERRHAKE

Jan SPERRHAKE 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).

  • Method and device for the non-contact determination of color and intensity variations over time in objects
    Patent number: 12053267
    Abstract: A method and a device for non-contact determination of temporal color and/or intensity variations in objects in a scene. Monoscopic overview images of the scene are detected with first and second overview cameras from two different viewing directions, and calculated to form a stereoscopic overview map. A two-dimensional detail image is detected by a detail camera from a third viewing direction and is projected on the overview map. Measurement surfaces in the scene are selected based on criteria which are predetermined depending on parameters on which conclusions are to be drawn from the color variations and/or intensity variations. Light emitted by the measurement surfaces is detected in a spatially-resolved and wavelength-resolved manner in a continuously-captured series of measurement images in a predetermined spectral range. The measurement surfaces are analyzed in the measurement images with respect to temporal variation of the intensity and/or color of the light, and the results displayed.
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: August 6, 2024
    Assignees: FRIEDRICH-SCHILLER-UNIVERSITÄT JENA, UNIVERSITÄTSKLINIKUM JENA, OTTO-VON-GUERICKE-UNIVERSITÄT MAGDEBURG, FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Jan Sperrhake, Thomas Pertsch, Maria Nisser, Michal Rapczynski, Ayoub Al-Hamadi, Chen Zhang, Gunther Notni
  • METHOD AND DEVICE FOR THE NON-CONTACT DETERMINATION OF COLOR AND INTENSITY VARIATIONS OVER TIME IN OBJECTS
    Publication number: 20220409078
    Abstract: A method and a device for non-contact determination of temporal color and/or intensity variations in objects in a scene. Monoscopic overview images of the scene are detected with first and second overview cameras from two different viewing directions, and calculated to form a stereoscopic overview map. A two-dimensional detail image is detected by a detail camera from a third viewing direction and is projected on the overview map. Measurement surfaces in the scene are selected based on criteria which are predetermined depending on parameters on which conclusions are to be drawn from the color variations and/or intensity variations. Light emitted by the measurement surfaces is detected in a spatially-resolved and wavelength-resolved manner in a continuously-captured series of measurement images in a predetermined spectral range. The measurement surfaces are analyzed in the measurement images with respect to temporal variation of the intensity and/or color of the light, and the results displayed.
    Type: Application
    Filed: November 26, 2020
    Publication date: December 29, 2022
    Inventors: Jan SPERRHAKE, Thomas PERTSCH, Maria NISSER, Michal RAPCZYNSKI, Ayoub AL-HAMADI, Chen ZHANG, Gunther NOTNI