Patents by Inventor Tsz-Yam Lau

Tsz-Yam Lau 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).

  • Patent number: 11947586
    Abstract: Techniques are disclosed for automatic scene detection and character extraction. In one example, audiovisual content with video frames, an audio recording, and timing information is received. A score, based on the frame's visual characteristics, is determined for a first frame and subsequent frames. The first frame's score and subsequent frame's scores are compared to determine if the difference between the scores is above a threshold. When the difference in scores is above a threshold, the subsequent frame is classified as a new scene. The audiovisual content is segmented into scenes and textual characters are identified in at least one frame from each scene. The characters are stored and indexed in a searchable database with the timing information for the scene where the characters were identified. The audio recording is transcribed and the transcribed words are stored and indexed in the searchable database with timing information.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: April 2, 2024
    Assignee: Oracle International Corporation
    Inventors: Wenchao Sun, Dru Kingston Borden, Tsz-Yam Lau, Shi-Rong Chang
  • Publication number: 20220414138
    Abstract: Techniques are disclosed for automatic scene detection and character extraction. In one example, audiovisual content with video frames, an audio recording, and timing information is received. A score, based on the frame's visual characteristics, is determined for a first frame and subsequent frames. The first frame's score and subsequent frame's scores are compared to determine if the difference between the scores is above a threshold. When the difference in scores is above a threshold, the subsequent frame is classified as a new scene. The audiovisual content is segmented into scenes and textual characters are identified in at least one frame from each scene. The characters are stored and indexed in a searchable database with the timing information for the scene where the characters were identified. The audio recording is transcribed and the transcribed words are stored and indexed in the searchable database with timing information.
    Type: Application
    Filed: November 22, 2021
    Publication date: December 29, 2022
    Applicant: Oracle International Corporation
    Inventors: Wenchao Sun, Dru Kingston Borden, Tsz-Yam Lau, Shi-Rong Chang