Systems and methods for the efficient computation of image transforms
US8270763B2 · kind B2 · utility
3Cited by
5References
21Claims
0Family size
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Key dates
| Filing date | Jun 22, 2009 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Feb 22, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Image transforms that can be performed through a reverse lookup process in which output pixel addresses of an output image are reverse transformed into input pixel addresses. In some embodiments, rather than reverse transforming all output pixel addresses, a subset of output pixel addresses can be reverse transformed to calculate transformed addresses. The reverse transforms of all output pixel address may then be approximately calculated by interpolating the transformed addresses. The approximately transformed addresses can then be used as read addresses to a memory storing the input image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.