Digital image interpolator using a plurality of interpolation kernals
US5125042A · kind A · utility
59Cited by
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Key dates
| Filing date | May 14, 1991 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | May 14, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T3/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An interpolator for enlarging or reducing a digital image includes an interpolation coefficient memory containing interpolation coefficients representing a one dimension interpolation kernel. A row interpolator receives image pixel values, retrieves interpolation coefficients from the memory, and produces interpolated pixel values by interpolating in a row direction. A column interpolator receives multiple rows of interpolated pixel values from the row interpolator, retrieves interpolation coefficients from the memory, and produces rows of interpolated pixel values by interpolating in a column direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.