Patents by Inventor Steve Zhihua Zeng

Steve Zhihua Zeng 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 and system for noise reduction in an image
    Patent number: 7668396
    Abstract: In a specific embodiment of the present disclosure, a source image is smoothed to create a smoothed image, and an edge detector is used to create an edge layer. A blending controller is used to control a blending between the source image and the smoothed image. The blended destination image maintains detail while eliminating unwanted noise.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: February 23, 2010
    Assignee: Vixs Systems, Inc.
    Inventor: Steve Zhihua Zeng
  • System of intra-picture complexity preprocessing
    Patent number: 7609766
    Abstract: A system having a video pipeline that includes a variation calculation portion is disclosed. The variance calculation portion calculates a plurality of variance values for a macroblock. A DCT-type indicator for the macroblock is determined based upon the plurality of variance values.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: October 27, 2009
    Assignee: VIXS Systems, Inc.
    Inventor: Steve Zhihua Zeng
  • Method and system for scaling images
    Patent number: 7277101
    Abstract: A system of scaling is disclosed. A data structure is provided including a control word indicative of a number of input pixels associated with a scaling cycle, a number of output pixels associated with a scaling cycle, a number of available phases and a shift variable. Scaling is performed by incrementing a current phase to obtain a adjusted value, decrementing the adjusted value to obtain a second adjusted value, and determining an index value to access a coefficient by right-shifting the second adjusted value.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: October 2, 2007
    Assignee: ViXS Systems Inc
    Inventor: Steve Zhihua Zeng