Motion estimation device and motion estimation method
US9105100B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2013 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Feb 11, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/689
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A motion estimation method includes grouping row blocks of a first frame into a first plurality of banks and grouping row blocks of a second frame into a corresponding second plurality of banks, respectively; calculating the normalized cross correlation (NCC) or the sum of absolute difference (SAD) between the banks of the first frame and the banks of the second frame; detecting the local maxima from the NCC or the local minima from the SAD; estimating a first relative displacement between corresponding reference row blocks of the first frame and of the second frame; calculating motion coefficients using first relative displacements; and estimating second relative displacements using the motion coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.