Invention Grant
- 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
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Application No.: US11678998Application Date: 2007-02-26
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Publication No.: US08279341B1Publication 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

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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