Patents by Inventor Wondong Jang

Wondong Jang 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).

  • Image processing apparatus for removing haze contained in still image and method thereof
    Patent number: 9336577
    Abstract: An image processing apparatus for removing haze from an image includes a haze brightness measurer, a transmission estimator and an image reconstructor. The haze brightness measurer is configured to measure haze brightness in the image. The transmission estimator is configured to estimate a blockwise transmission based on a final cost function value calculated by a contrast and an image loss of the image, and to estimate a pixelwise transmission by using the blockwise transmission. The image reconstructor is configured to generate a reconstructed image by using the haze brightness and the pixelwise transmission.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: May 10, 2016
    Assignees: SK TELECOM CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Yongsup Park, Donghahk Lee, Changsu Kim, Jinhwan Kim, Wondong Jang
  • Image-processing apparatus for removing haze contained in video, and method therefof
    Patent number: 9275443
    Abstract: An image processing apparatus includes a haze brightness measurer to measure haze brightness in an image containing haze, a transmission estimator to estimate a blockwise transmission for generating a least final cost function value that is calculated by using a contrast, an image loss and a time loss of the image and to estimate a pixelwise transmission based on the estimated blockwise transmission, and an image reconstructor to reconstruct the image by using the measured haze brightness and the estimated pixelwise transmission.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: March 1, 2016
    Assignee: SK TELECOM CO., LTD.
    Inventors: Yongsup Park, Donghahk Lee, Changsu Kim, Jinhwan Kim, Wondong Jang
  • IMAGE-PROCESSING APPARATUS FOR REMOVING HAZE CONTAINED IN VIDEO, AND METHOD THEREFOF
    Publication number: 20150071563
    Abstract: An image processing apparatus includes a haze brightness measurer to measure haze brightness in an image containing haze, a transmission estimator to estimate a blockwise transmission for generating a least final cost function value that is calculated by using a contrast, an image loss and a time loss of the image and to estimate a pixelwise transmission based on the estimated blockwise transmission, and an image reconstructor to reconstruct the image by using the measured haze brightness and the estimated pixelwise transmission.
    Type: Application
    Filed: November 17, 2014
    Publication date: March 12, 2015
    Inventors: Yongsup PARK, Donghahk LEE, Changsu KIM, Jinhwan KIM, Wondong JANG
  • IMAGE PROCESSING APPARATUS FOR REMOVING HAZE CONTAINED IN STILL IMAGE AND METHOD THEREOF
    Publication number: 20150063719
    Abstract: An image processing apparatus for removing haze from an image includes a haze brightness measurer, a transmission estimator and an image reconstructor. The haze brightness measurer is configured to measure haze brightness in the image. The transmission estimator is configured to estimate a blockwise transmission based on a final cost function value calculated by a contrast and an image loss of the image, and to estimate a pixelwise transmission by using the blockwise transmission. The image reconstructor is configured to generate a reconstructed image by using the haze brightness and the pixelwise transmission.
    Type: Application
    Filed: November 3, 2014
    Publication date: March 5, 2015
    Inventors: Yongsup Park, Donghahk Lee, Changsu Kim, Jinhwan Kim, Wondong Jang