Invention Grant
US08279341B1 Enhancing the resolution and quality of sequential digital images 有权
提高顺序数字图像的分辨率和质量

  • Patent Title: Enhancing the resolution and quality of sequential digital images
  • Patent Title (中): 提高顺序数字图像的分辨率和质量
  • Application No.: US11678998
    Application Date: 2007-02-26
  • Publication No.: US08279341B1
    Publication Date: 2012-10-02
  • Inventor: Nikola Bozinovic
  • Applicant: Nikola Bozinovic
  • Applicant Address: US CA Burlingame
  • Assignee: MotionDSP, Inc.
  • Current Assignee: MotionDSP, Inc.
  • Current Assignee Address: US CA Burlingame
  • Agency: Inventek
  • Agent Dov Rosenfeld
  • Main IPC: H04N11/20
  • IPC: H04N11/20 G06K9/32
Enhancing the resolution and quality of sequential digital images
Abstract:
In particular embodiments, a process relating to the creation of a high-resolution video from a low-resolution video. In a particular embodiment, the process receives as input a sequence of low-resolution video frames. The process first determines a matching score for consecutive frames in the sequence, where the matching score is based on a preliminary global transformation between consecutive frames. From the matching scores, the process determines a set of matching windows and relative-motion estimates and then uses the set and estimates to calculate more thorough global transformations and any residual relative-motion which can be explained using independent object motion and/or optical flow. The process uses the latter global transformation and any independent object motion and/or optical flow to create motion trajectories and to generate high-resolution frames by interpolating low-resolution frames at trajectory-defined points, using regular-to-irregular spatio-temporal interpolation. The process then restores the frames, using deblurring, and outputs them.
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