Predictive video coding employing virtual reference frames generated by direct MV projection (DMVP)
US12341971B2 · kind B2 · utility
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26Claims
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Key dates
| Filing date | Jan 20, 2023 |
| Grant date | Jun 24, 2025 |
| Priority date | — |
| Expiry date | Jul 29, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques are disclosed for generating virtual reference frames that may be used for prediction of input video frames. The virtual reference frames may be derived from already-coded reference frames and thereby incur reduced signaling overhead. Moreover, signaling of virtual reference frames may be avoided until an encoder selects the virtual reference frame as a prediction reference for a current frame. In this manner, the techniques proposed herein contribute to improved coding efficiencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.