Patents by Inventor Dietrich Leihs

Dietrich Leihs 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 for reading vehicle identifications
    Patent number: 9361535
    Abstract: A method is disclosed for reading license plate numbers in a road network, comprising: recording an image of a license plate number at a first location, OCR-reading a license plate character string in the image, and storing an OCR data set in a database; recording an image of a license plate number at a second location, OCR-reading a license plate number character string in the image, and generating a current OCR data set; and, if a confidence measure of the current OCR data set falls below a first minimum confidence value, selecting a stored OCR data set with a license plate number image having a similarity exceeding a minimum similarity value and/or having the greatest similarity to the license plate number image of the current OCR data set, and using the selected OCR data set for improving the license plate number character string of the current OCR data set.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: June 7, 2016
    Assignee: Kapsch TrafficCom
    Inventors: Dietrich Leihs, Alexander Abl, Oliver Nagy
  • METHOD FOR READING VEHICLE IDENTIFICATIONS
    Publication number: 20140270386
    Abstract: A method is disclosed for reading license plate numbers in a road network, comprising: recording an image of a license plate number at a first location, OCR-reading a license plate character string in the image, and storing an OCR data set in a database; recording an image of a license plate number at a second location, OCR-reading a license plate number character string in the image, and generating a current OCR data set; and, if a confidence measure of the current OCR data set falls below a first minimum confidence value, selecting a stored OCR data set with a license plate number image having a similarity exceeding a minimum similarity value and/or having the greatest similarity to the license plate number image of the current OCR data set, and using the selected OCR data set for improving the license plate number character string of the current OCR data set.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: Kapsch TrafficCom AG
    Inventors: Dietrich Leihs, Alexander Abl, Oliver Nagy