Systems and methods for applying a residual error image
US9442904B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2012 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | May 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods described herein enable a residual error image to be added and rendered in an existing HTML canvas using native primitives. A current image and a residual error image containing pixel value differences between the current image and an updated image are received. A positive residual error image and a negative error image are generated from the residual error image. The positive residual error image is added to the current image to generate a partially updated image, and the partially updated image is xored to generate an inverse image. The negative residual error image is added to the inverse image to generate an updated inverse image, and xoring the inverse image to revert the inverse image to generate the updated image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.