Patents Assigned to Securiton, AG
  • Process and device for detecting fires based on image analysis
    Patent number: 6937743
    Abstract: Method for automatically detecting fires, based on flame and/or smoke recognition by analyzing a sequence of images. The analysis is based on several image processing algorithms. One algorithm consists in comparing the frequency content of at least an image of said sequence with the frequency content of a reference image so as to detect an attenuation of high frequencies independently of variations on other portions of the spectrum.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: August 30, 2005
    Assignees: Securiton, AG, Fastcom Technology SA
    Inventors: Didier Rizzotti, Nikolaus Schibli, Werner Straumann