Patents by Inventor Arthur A. Webster, III

Arthur A. Webster, III 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).

  • Perception-based audio visual synchronization measurement system
    Patent number: 5596364
    Abstract: A method for objectively and non-intrusively measuring the audio-visual quality of a destination audio-video signal that generates measurement parameters that are indicative of human image quality perceptions. Subjective human test panel results are generated for a variety of audio-video test samples and objective test results are also generated by the apparatus of the invention for the variety of audio-video test samples. Accordingly, when the apparatus extracts test frames from the actual source and destination audio-video signals and compares them, audio-visual quality parameters are output by the apparatus that are indicative of the audio-visual quality of the destination audio-visual signal based upon the source audio-visual signal.
    Type: Grant
    Filed: March 30, 1995
    Date of Patent: January 21, 1997
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Stephen Wolf, Coleen T. Jones, Arthur A. Webster, III, Stephen Voran, Margaret H. Pinson, Robert F. Kubichek
  • Perception-based video quality measurement system
    Patent number: 5446492
    Abstract: A method and apparatus for objectively measuring the image quality of a destination video signal generates measurement parameters that are indicative of human image quality perceptions. Subjective human test panel results are generated for a variety of test scenes and types of image impairment. Objective test results are also generated by the apparatus of the present invention for the variety of test scenes and image impairments. A statistical analysis means statistically analyzes the subjective and objective test results to determine operation of the apparatus. Accordingly, when the apparatus extracts test frames from the actual source and destination video signals and compares them, image quality parameters are output by the apparatus which are based on human image quality perceptions.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: August 29, 1995
    Inventors: Stephen Wolf, Stephen D. Voran, Arthur A. Webster, III