Patents by Inventor Cécile Cougnard

Cécile Cougnard 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).

  • Video coding method and corresponding video coder
    Patent number: 6574276
    Abstract: The invention relates to a video coding method based on an adaptive frame/field encoding mode. In order to avoid an impairment of the image quality and of the compression efficiency when a video sequence comprises a lot of motion or on the contrary quasi-motionless images, an improved real time double pass encoding scheme is proposed: during the first pass, no video stream is generated, but statistical results are computed and then provided to the second pass in order to optimize during said second pass the bit rate allocation and the buffer management. This improved double pass encoding method leads to an increase of the compression efficiency of about 10%.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: June 3, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Cécile Cougnard, Denis Roche
  • Video coding method and corresponding video coder
    Publication number: 20030031255
    Abstract: The invention relates to a video coding method based on an adaptive frame/field encoding mode. In order to avoid an impairment of the image quality and of the compression efficiency when a video sequence comprises a lot of motion or on the contrary quasi-motionless images, an improved real time double pass encoding scheme is proposed: during the first pass, no video stream is generated, but statistical results are computed and then provided to the second pass in order to optimize during said second pass the bit rate allocation and the buffer management. This improved double pass encoding method leads to an increase of the compression efficiency of about 10%.
    Type: Application
    Filed: June 19, 2002
    Publication date: February 13, 2003
    Applicant: U.S. PHILIPS CORPORATION
    Inventors: Cecile Cougnard, Denis Roche
  • Video coding method and corresponding video coder
    Patent number: 6466621
    Abstract: The invention relates to a video coding method based on an adaptive frame/field encoding mode. In order to avoid an impairment of the image quality and of the compression efficiency when a video sequence comprises a lot of motion or on the contrary quasi-motionless images, an improved real time double pass encoding scheme is proposed: during the first pass, no video stream is generated, but statistical results are computed and then provided to the second pass in order to optimize during said second pass the bit rate allocation and the buffer management. This improved double pass encoding method leads to an increase of the compression efficiency of about 10%.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: October 15, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Cécile Cougnard, Denis Roche