Patents by Inventor Gi Hyun Na

Gi Hyun Na 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 for codec-based recovery of a video using a cluster search
    Patent number: 9436551
    Abstract: A method for codec-based recovery of a video, which includes recovering an image by combining image decoding information and non-overwritten image frames, is provided. The method includes: a cluster extraction step of extracting a pre-cluster region; a region extraction step of extracting, from the pre-cluster region extracted in the cluster extraction step, an M frame region encoded using an MPEG-4 visual codec and an M decoding region; a combining step of combining the M frame region and the M decoding region extracted in the region extraction step and listing the combination; and a recovering step of decoding the M frame region and the M decoding region, listed in the combining step, to be recovered as an image.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: September 6, 2016
    Assignee: REPUBLIC OF KOREA (NATIONAL FORENSIC SERVICE DIRECTOR MINISTRY OF PUBLIC ADMINISTRATION AND SECURITY)
    Inventors: Ki Woong Moon, Joong Lee, Gi Hyun Na, Kyu Sun Shim
  • METHOD FOR CODEC-BASED RECOVERY OF A VIDEO USING A CLUSTER SEARCH
    Publication number: 20140164336
    Abstract: A method for codec-based recovery of a video, which includes recovering an image by combining image decoding information and non-overwritten image frames, is provided. The method includes: a cluster extraction step of extracting a pre-cluster region; a region extraction step of extracting, from the pre-cluster region extracted in the cluster extraction step, an M frame region encoded using an MPEG-4 visual codec and an M decoding region; a combining step of combining the M frame region and the M decoding region extracted in the region extraction step and listing the combination; and a recovering step of decoding the M frame region and the M decoding region, listed in the combining step, to be recovered as an image.
    Type: Application
    Filed: July 25, 2012
    Publication date: June 12, 2014
    Applicant: REPUBLIC OF KOREA
    Inventors: Ki Woong Moon, Joong Lee, Gi Hyun Na, Kyu Sun Shim