System and method for storing and moving graphical image data sets with reduced data size requirements
US9451275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2015 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | May 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for reducing data size of digital images is provided. The method includes receiving a Joint Photographic Experts Group (JPEG) encoded image, and performing an entropy decode on the image. The method also includes generating a fingerprint for each JPEG coefficient block, and processing the fingerprints to determine the identity of any duplicate or similar JPEG coefficient blocks. The method further includes generating metadata identifying the duplicate or similar JPEG coefficient blocks, and compressing non-duplicate and/or non-similar JPEG coefficient blocks. The method also includes transferring the metadata and the non-duplicate and/or non-similar JPEG coefficient blocks to a remote system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.