Patents by Inventor David S Hands

David S Hands 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 system for video quality assessment
    Patent number: 8508597
    Abstract: A method and system for automated video quality assessment which reduces the adverse effects of sub-field/frame misalignments between the reference and test sequences. More particularly, the invention provides for misalignments down to a sub-field/frame level to be handled by individually matching sub-field/frame elements of a test video field/frame with sub-field/frame elements from a reference video field/frame. The use of a matching element size that is significantly smaller than the video field/frame size enables transient sub-field/frame misalignments to be effectively tracked.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: August 13, 2013
    Assignee: British Telecommunications public limited company
    Inventors: Alexandre J Bourret, David S Hands, Damien Bayart, Andrew G Davis
  • Multimodal quality assessment
    Patent number: 7197452
    Abstract: The quality of audiovisual material is assessed by measuring the audio an video quality and computing from these a combined measure. Using a parameter indicative of the degree of motion represented by the video, the computation employs one of a plurality of algorithms selected in dependence on the value of the parameter.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: March 27, 2007
    Assignee: British Telecommunications public limited company
    Inventor: David S Hands
  • Multimodal quality assessement
    Publication number: 20040068398
    Abstract: The quality of audiovisual material is assessed by measuring the audio and video quality and computing from these a combined measure. Using a parameter indicative of the degree of motion represented by the video, the computation employs one of a plurality of algorithms selected in dependence on the value of the parameter.
    Type: Application
    Filed: August 26, 2003
    Publication date: April 8, 2004
    Inventor: David S Hands