Method and apparatus for computing motion tracking parameters
US6750900B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 23, 1998 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Jul 23, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus is provided for efficient computing of perspective transformation motion tracking parameters in a sequence of images. More specifically, a set of initial positions for N points defined as (xi yi) for i=1 to N corresponding to at least one input image in a sequence of images are defined. The initial positions are preferably chosen based on image features having good edge and corner definitions. A set of mapping parameters are then generated using a matrix processor to solve linearized equations that define a set of final positions. The mapping parameters are then applied to the initial positions to define the set of final positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.