Large scale online lossless animated GIF processor
US10803626B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Jun 28, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/507
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and techniques for a large scale online lossless animated GIF processor are described herein. In an example, a lossless animated GIF processor is adapted to receive an animated GIF image and decode a first and second frame of the animated GIF image, wherein the decoding identifies a disposal method for each frame. The lossless animated GIF processor may determine an optimized disposal method for the second frame based on transparency pixels in the second frame and an overlap estimation between the second frame and the first frame. The lossless animated GIF processor may encode the second frame with the optimized disposal method. The lossless animated GIF processor may be further adapted to identify pixels in an area of interest, designate pixels outside the area of interest as transparent, and encode the area of interest and the pixels designated as transparent for the second frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.