Patents Assigned to Beyontech, Inc
  • Method of extracting watermark data in an image with reference to a noise-based image located in the image based on a comparison process performed in the frequency domain
    Patent number: 11070700
    Abstract: Provided is a method of embedding and extracting watermark data that is robust against geometric distortion and low-quality photographing and for which the probability of successfully extracting watermark data for an original image is high, while the probability of successfully extracting the watermark data in the case of unauthorized copying is seriously impaired. The data embedding method according to an embodiment of the present invention comprises a step of converting the noise-based image using watermark data, and a step of adjusting the original image using the converted noise-based image.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: July 20, 2021
    Assignees: Beyontech, Inc, Haroo Company
    Inventor: Joon-ho Sung
  • Method of embedding and extracting watermark data from original image adjusted with noise based image converted using watermark
    Patent number: 10757292
    Abstract: Provided is a method of embedding and extracting watermark data that is robust against geometric distortion and low-quality photographing and for which the probability of successfully extracting watermark data for an original image is high, while the probability of successfully extracting the watermark data in the case of unauthorized copying is seriously impaired. The data embedding method according to an embodiment of the present invention comprises a step of converting the noise-based image using watermark data, and a step of adjusting the original image using the converted noise-based image.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: August 25, 2020
    Assignees: Beyontech, Inc, Haroo Company
    Inventor: Joon-ho Sung