System and method for deformable object recognition
US8260059B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2008 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Jul 6, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/754
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a system and method for detecting deformable objects in images even in the presence of partial occlusion, clutter and nonlinear illumination changes. A holistic approach for deformable object detection is disclosed that combines the advantages of a match metric that is based on the normalized gradient direction of the model points, the decomposition of the model into parts and a search method that takes all search results for all parts at the same time into account. Despite the fact that the model is decomposed into sub-parts, the relevant size of the model that is used for the search at the highest pyramid level is not reduced. Hence, the present invention does not suffer the speed limitations of a reduced number of pyramid levels that prior art methods have.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.