Method for transmitting video picture, device for sending video picture, and video call method and device
US12200247B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2022 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | May 13, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/577
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of this disclosure provide a method for transmitting a video picture, a device for sending a video picture, and a video call method and device, where the video picture includes a plurality of video frames. According to the method for transmitting a video picture, the plurality of video frames are encoded to obtain an encoded bitstream, where the bitstream includes at least information indicating inter-frame reference relationships. In this application, each of N frames preceding to a current frame references a forward long-term reference (LTR) frame that has a shortest temporal distance to each of the preceding N frames, and the forward LTR frame is an encoded video frame marked by a transmit end device as an LTR frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.