Compression of image data associated with two-dimensional arrays of pixel sub-components
US6750875B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2000 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Feb 1, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0457
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Display devices and image rendering processes increase the resolution of displayed images in the horizontal and vertical dimensions. The increased resolution is obtained on LCD display devices or other display devices having separately controllable pixel sub-components. Assuming the display devices have vertical stripes, much of the increased resolution in the horizontal direction is obtained by mapping spatially different sets of one or more samples to the individual pixel sub-components. In this way, the pixel sub-components are treated as separate luminous intensity sources. The improved resolution in the vertical dimension is achieved by increasing the pixel sub-component density in the vertical dimension. To accommodate the increased number of pixel sub-components, image data compression can be performed if bandwidth limitations are present. The image data compression involves controlling sets of vertically adjacent pixels using red, green, and blue luminous intensity values and a bias value. The red, green, and blue luminous intensity values control the overall luminance of the sets of red, green, and blue pixel sub-components, while the bias value indicates if, and to what e…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.