Resolution enhancement for video display using multi-line interpolation
US6191772A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1998 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Jul 2, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/121
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a method and apparatus for enhancing apparent image resolution by way of multi-line interpolation. A method for enhancing the resolution of low-resolution image-data includes the steps of: providing a memory [420] having independently addressable storage banks [420L,420R]; storing the low-resolution image-data [125] in the memory [420] such that low-resolution image-data defining a first low-resolution row [LR.sub.0 ] resides in a first of said storage banks [420R] and such that low-resolution image-data defining a second low-resolution row [LR.sub.1 ], adjacent to the first low-resolution row [LR.sub.0 ], resides in a second of said storage banks [420L]; extracting first through Nth low-resolution pixel signals [S.sub.1 -S.sub.1 ] from the memory [420], said signals representing values of low-resolution pixels in the adjacent first and second low-resolution rows [LR.sub.0,LR.sub.1 ] of the low-resolution image-data [125]; and producing a high-resolution pixel signal [Hpx] from said first through Nth low-resolution pixel signals [S.sub.1 -S.sub.3 ] in accordance with a distance-weighted algorithm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.