Invention Grant
- Patent Title: Refining motion vectors in video motion estimation
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Application No.: US15903385Application Date: 2018-02-23
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Publication No.: US10687076B2Publication Date: 2020-06-16
- Inventor: Michael James Knee , Martin Weston
- Applicant: Snell Advanced Media Limited
- Applicant Address: GB Newbury, Berkshire
- Assignee: GRASS VALLEY LIMITED
- Current Assignee: GRASS VALLEY LIMITED
- Current Assignee Address: GB Newbury, Berkshire
- Agency: Arent Fox LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2122a016
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N5/14 ; H04B1/66 ; G06T7/20 ; H04N19/56
Abstract:
In video motion estimation an initial candidate motion vector is generated for each block and a vector error is determined as for example a DFD. Spatial gradients of pixel values are calculated and used to refine the initial candidate motion vector. The relative contribution of the spatial gradients to the refinement process depends on the vector error.
Public/Granted literature
- US20180184115A1 REFINING MOTION VECTORS IN VIDEO MOTION ESTIMATION Public/Granted day:2018-06-28
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