Methods and systems for adaptive cropping
US12316862B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2023 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Dec 28, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/865
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video encoder is configured to encode a bitstream to be decoded by a compliant decoder receiving the bitstream. The bitstream including a first coded picture having a first resolution and a second coded picture having a second resolution, wherein the first coded picture is an intra-coded picture, parameters defining a cropping window. The decoder decodes the first coded picture and stores the first picture as a reference picture, determines a scaling factor from at least one parameter in the bitstream defining the first cropping window, determines a predictor for the second picture from the reference picture and the scaling factor, decodes the second coded picture using the predictor, and outputs for display the first picture as cropped in accordance with the parameters defining the cropping window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.