Patents by Inventor Yalcin Inescu

Yalcin Inescu 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).

  • Contrast enhancement of digital images
    Patent number: 7102697
    Abstract: An adaptive histogram equalization method is introduced which allows the histogram equalization amount to automatically adapt to the original image contrasts, which can be measured from the originals. Contrast over-enhancement is avoided by limiting the spatial frequency response of the histogram. Besides that, methods to remedy the brightness change problem encountered by histogram equalization are described.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: September 5, 2006
    Assignee: Sony Deutschland GmbH
    Inventors: Zhichun Lei, Piergiorgio Sartor, Yalcin Inescu, Peter Wagner
  • Contrast enhancement of digital images
    Publication number: 20030161549
    Abstract: An adaptive histogram equalization method is introduced which allows the histogram equalization amount to automatically adapt to the original image contrasts, which can be measured from the originals. Contrast over-enhancement is avoided by limiting the spatial frequency response of the histogram. Besides that, methods to remedy the brightness change problem encountered by histogram equalization are described.
    Type: Application
    Filed: February 24, 2003
    Publication date: August 28, 2003
    Inventors: Zhichun Lei, Piergiorgio Sartor, Yalcin Inescu, Peter Wagner