Data compression method and apparatus
US10475419B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2016 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Nov 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2350/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of compressing image data involves determining an active area of an image to be displayed, at least part of which changes from frame to frame to provide a moving image. Color values for each pixel in at least part of the active area that has changed are determined (S73) and a resolution of a blue component of the color values is dynamically reduced (S75) relative to resolutions of green and red components of the color values. The image data is then transmitted, together with error correction information indicating how to correct the blue component when the image data is displayed. The active area may be a particularly fast changing part of the image or an area on which a user is focused.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.