Image data up sampling
US8120660B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 2007 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | May 5, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Forming image information of image units (e.g. pixels) of a higher resolution by convoluting information of image units of a lower resolution with coefficients of a multiphase filter. The information of one set of higher resolution image units is formed by convoluting in a first direction the information of the lower resolution image units with a first set of four coefficients. The information of a second set of higher resolution image units is form by convoluting in the first direction the information of the lower resolution image units with a second set of four coefficients. Convolution may also be performed in a second direction with a set of four coefficients. In one example, the image information formed includes intensity information for each image unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.