Method of detecting global motion and global motion detector, and digital image stabilization (DIS) method and circuit including the same
US9025885B2 · kind B2 · utility
6Cited by
17References
18Claims
0Family size
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Key dates
| Filing date | Mar 14, 2013 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Aug 2, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/198
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a global motion detecting method which includes receiving a video sequence of input images, calculating local motion vectors, one for each image block of a current input image, grouping image blocks of the current input image into image block groups, calculating a group motion parameter of each of the image block groups based on local motion vectors of the image blocks in each respective image block group, and determining a global motion parameter of the currently input image according to the group motion parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.