Method and apparatus for thumbnail generation for a video device
US12022092B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 18, 2023 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | May 18, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/440281
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An example method includes the steps of receiving an encoded video packet including a packet header and generating a modified packet header. The modified packet header is generated by setting a first value in the packet header to indicate zero reference frames, and by setting a second value in the packet header designating an i-frame as unused for reference. The i-frame is decoded in response to the modified packet header to extract the i-frame without caching the i-frame in a decoded picture buffer. A thumbnail image is generated and includes an image from the i-frame. The thumbnail image is stored directly in memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.