Patents Assigned to Digital Vision AB
  • Publication number: 20090002558
    Abstract: A method for reconstructing damaged areas in a single frame of digital motion pictures, where damaged pixels in a current frame (C) are reconstructed using motion compensation based on a motion estimator. The motion estimator comprises a motion vector selection using a combined measure for evaluating linear motion over three frames, going from a previous frame (P) to a next frame (N) through the current frame (C). Compared to a virtual frame motion estimator, the method according to the invention achieves better stability and confidence in the motion search. Compared to the use of a standard motion estimators, the method according to the invention has a better way of finding the correct motion for the damaged areas whether unknown or known, while still being able to find the correct motion for those parts which are not damaged.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Applicant: DIGITAL VISION AB
    Inventor: Fredrik Lidberg
  • Publication number: 20070237390
    Abstract: A system for processing the creation of an image matte, includes a set of multi-dimensional control functions, each having a single control unit for adjustment of more than one Keying parameter, thereby enabling a person to adjust more than one parameter when moving the single control unit.
    Type: Application
    Filed: April 11, 2007
    Publication date: October 11, 2007
    Applicant: DIGITAL VISION AB
    Inventors: Kevin Shaw, Richard Shackleton
  • Publication number: 20070237234
    Abstract: A method for motion validation in a virtual frame motion estimator includes selecting motion vectors for a virtual frame C, located at a temporal position between a previous frame P and a subsequent frame N, and computation of an extended error function based on the error for a vector V passing from frame P, through a reference block in the virtual frame C, to frame N, and using additional validation measures computed from vectors ?V and +V starting from co-located blocks in P and N respectively, thereby reducing the risk for selecting erroneous vectors for said reference blocks in the virtual frame C.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 11, 2007
    Applicant: DIGITAL VISION AB
    Inventor: Fredrik Lidberg
  • Patent number: 6795582
    Abstract: The invention relates to a method and an apparatus for processing a stream of pictures. The method comprises the steps of selecting a first portion of pictures from a stream of pictures fulfilling a quality measure for processing in a first processing unit PROC1, and selecting a second portion of pictures not fulfilling said quality measure for processing in a second processing unit PROC2. The first portion of the pictures selected are processed in the first processing unit PROC1, and the second portion of the pictures are processed in the second processing unit PROC2. Finally, the first portion of the pictures processed in the first processing unit PROC1 are combined with the second portion of the pictures processed in the second processing unit PROC2.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: September 21, 2004
    Assignee: Digital Vision AB
    Inventors: Björn Christensson, Göran Appelquist, Peter Weiss