Optimized video stitching method
US7978931B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2007 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Mar 10, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention discloses an optimized video stitching method, comprising: inputting predefined pattern images; proceeding with a transformation which combines planar and cylindrical transformation; proceeding with a merging calculation which combines linear difference merging and alpha blending calculation; and proceeding with a horizontal stitching processing by putting the processed images horizontally together into one seamless wide-angle image. The optimized video stitching method according to the invention further comprises a camera position calibration flow comprising: finding a planar matrix by using predefined pattern images; proceeding with a planar transformation of image; proceeding with an image registration by using a block matching method to find out the stitching points on the planar surface; and proceeding with a cylindrical transformation by transforming the stitching points from the planar surface to cylindrical surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.