Quality control engine for video compression
US11470355B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2019 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | May 13, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A portion of a first wavelet transform associated with a first frame in a sequence is compressed to produce a first compressed or modified portion of the first wavelet transform. The first modified portion is stored in the memory. A portion of a second wavelet transform associated with a second frame in the sequence is obtained. A set of differences between the portion of the second wavelet transform and the first compressed portion of the first wavelet transform is determined. A second compressed portion is generated based at least in part on the set of differences. A subset of a set of image data is provided to be displayed on a display device based at least in part on the second compressed portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.