Method to improve accuracy and reliability of motion estimated with phase correlation
US8792559B2 · kind B2 · utility
6Cited by
17References
6Claims
0Family size
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Key dates
| Filing date | Oct 26, 2010 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Nov 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/172
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of improving accuracy and reliability of motion estimation is described herein. In one aspect, a 2D neighborhood of phase correlation peak is approximated with an outer-product of two 1D vectors to eliminate the sub-pixel error. In another aspect, estimation of reliability is improved. In yet another aspect, two-pass phase correlation is implemented to eliminate sub-pel motion bias.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.