Patents by Inventor Guang Fei Zhu

Guang Fei Zhu 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).

  • Spatial diffusion in images
    Patent number: 8457434
    Abstract: The invention is related to spatial diffusion in images. Spatial diffusion helps blurring small discontinuities. Edges become sharper by spatial diffusion as well. A method for generating a spatial diffused image from an input image is described wherein the method comprises applying on the input image an inverted Gaussian spatial bilateral filter with a spatial weight which takes the form of an inverted Gaussian. The inverted-Gaussian-spatial bilateral filter, which uses an inverted-Gaussian function as the kernel of spatial filter, can remove small spots in large smooth areas efficiently.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: June 4, 2013
    Assignee: Thomson Licensing
    Inventors: Li Hua Zhu, Guang Fei Zhu, Jiheng Yang
  • Spatial diffusion in images
    Publication number: 20090067740
    Abstract: The invention is related to spatial diffusion in images. Spatial diffusion helps blurring small discontinuities. Edges become sharper by spatial diffusion as well. A method for generating a spatial diffused image from an input image is described wherein the method comprises applying on the input image an inverted Gaussian spatial bilateral filter with a spatial weight which takes the form of an inverted Gaussian. The inverted-Gaussian-spatial bilateral filter, which uses an inverted-Gaussian function as the kernel of spatial filter, can remove small spots in large smooth areas efficiently.
    Type: Application
    Filed: August 21, 2008
    Publication date: March 12, 2009
    Inventors: Li Hua Zhu, Guang Fei Zhu, Jiheng Yang