Affine motion compensation in video coding
US10757417B2 · kind B2 · utility
99Cited by
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11Claims
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Key dates
| Filing date | Jan 14, 2019 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Jan 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/537
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for video decoding a current block of video data, the device including one or more processors configured to compute a horizontal component of a motion vector and to compute a vertical component of a motion vector in an affine model. The affine model may be a four-parameter affine model which includes two control point motion vectors, or a six-parameter affine model which includes three control point motion vectors. The horizontal and vertical components may include differences between control point motion vectors based on first-bit shift operations and second bit-shift operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.