Patents by Inventor Yunmei Jia

Yunmei Jia 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).

  • System and method for adaptive contrast enhancement of video signals
    Publication number: 20080170798
    Abstract: A method for contrast enhancement of a video signal comprises receiving a video signal frame, gathering statistics about the video signal frame, calculating the effective input dynamic range of the video signal frame, calculating the effective output dynamic range of the video signal frame, and constructing a transform to enhance the picture in the video signal frame by mapping the effective input dynamic range to the effective output dynamic range via the transform.
    Type: Application
    Filed: January 16, 2007
    Publication date: July 17, 2008
    Inventors: Yunmei Jia, Bonaventure Karuta