Patents by Inventor Hans Peter Graf

Hans Peter Graf 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).

  • Patent number: 5864630
    Abstract: A multi-modal method for locating objects in images wherein a tracking analysis is first performed using a plurality of channels which may comprise a shape channel, a color channel, and a motion channel. After a predetermined number of frames, intermediate feature representations are obtained from each channel and evaluated for reliability. Based on the evaluation of each channel, one or more channels are selected for additional tracking. The results of all representations are ultimately integrated into a final tracked output. Additionally, any of the channels may be calibrated using initial results obtained from one or more channels.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: January 26, 1999
    Assignee: AT&T Corp
    Inventors: Eric Cosatto, Hans Peter Graf
  • Patent number: 5805745
    Abstract: An embodiment of the present invention locates facial features in an image by bandpass filtering the image and then performing morphological operations followed by a thresholding operation. This initial processing identifies candidate areas where facial features may be located. The candidate areas are evaluated by classifiers to determine if a facial feature, such as an eye or mouth, has been located.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: September 8, 1998
    Assignee: Lucent Technologies Inc.
    Inventor: Hans Peter Graf
  • Patent number: 5647027
    Abstract: Noisy images of graphical or pictorial records, such as hand-written postal addresses, are cleaned by a method of analyzing the shapes of pixel clusters. According to such method, a set of structuring kernels is used to extract primitive shapes. The outcome of this extraction process is used to determine whether each pixel, in turn, is to be treated as part of a image element such as an alphanumeric character.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: July 8, 1997
    Assignee: Lucent Technologies Inc.
    Inventors: Christopher John Burges, Eric Cosatto, Hans Peter Graf
  • Patent number: 5246083
    Abstract: Vehicle passenger collision protection device comprising an inflatable air bag and an acceleration sensor for determining the event of an impending accident and triggering the inflation of the air bag. The acceleration sensor is connected to the air bag inflation pyrotechnic propellant charge which expansion for the inflation of the air bag whereby the propellant is ignited by the appropriate sensor signal. The sensor activates a fan to run at its maximum power output to remove the combustion gases and particulates which escape from the air bag into the passenger space. The fan may be operated as a blower to force fresh air in or as an exhaust fan to suck contaminated air out of the passenger compartment. The fan is preferably the conventional fan associated with the air conditioning system provided in the vehicle. Alternately, a separate fan is connected to the existing ventilation system and may substitute for or supplement the first fan.
    Type: Grant
    Filed: July 16, 1991
    Date of Patent: September 21, 1993
    Assignee: Audi Ag
    Inventors: Hans-Peter Graf, Jacques M. Dulin