Patents by Inventor Krister Valfridsson

Krister Valfridsson 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).

  • Sequential image alignment
    Patent number: 8634605
    Abstract: A method for reading fingerprints is disclosed. The method comprises acquiring images of a fingerprint from a finger upon relative movement between the finger and an image sensor; selecting lines from said acquired images representing a new area of said fingerprint; determining composition parameters for each selected line: and storing said composition parameters and said selected lines such that a composite image comprising said selected lines is composabte. A corresponding fingerprint reading apparatus, a device, and a computer program are also disclosed.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: January 21, 2014
    Assignee: Precise Biometrics AB
    Inventors: Krister Valfridsson, Björn Nordin
  • SEQUENTIAL IMAGE ALIGNMENT
    Publication number: 20110182486
    Abstract: A method for reading fingerprints is disclosed. The method comprises acquiring images of a fingerprint from a finger upon relative movement between the finger and an image sensor; selecting lines from said acquired images representing a new area of said fingerprint; determining composition parameters for each selected line: and storing said composition parameters and said selected lines such that a composite image comprising said selected lines is composabte. A corresponding fingerprint reading apparatus, a device, and a computer program are also disclosed.
    Type: Application
    Filed: May 13, 2008
    Publication date: July 28, 2011
    Applicant: Precise Biometrics AB
    Inventors: Krister Valfridsson, Björn Nordin