Shift and/or merge of transformed data along two axes
US6678423B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2000 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Mar 13, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/48
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A one-dimensional algorithm for perform the merging of complementary portions from two independent overlapped images on the same 8×8 grid without the computational expense of conversion to and from the real domain is extended to a two-dimensional procedure. The merging process is performed exclusively in the frequency domain. The extension to two dimensions is done by shifting and/or merging rows of side-by-side two-dimensional transformed data blocks using the one-dimensional algorithm. Then a vertical shifting and/or merging can be performed on the horizontally shifted and/or merged blocks again using the one-dimensional algorithm with an independent shift/merge parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.