Continuous linear dynamic systems
US8917907B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2012 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Apr 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/49
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Aspects of the present invention include systems and methods for segmentation and recognition of action primitives. In embodiments, a framework, referred to as the Continuous Linear Dynamic System (CLDS), comprises two sets of Linear Dynamic System (LDS) models, one to model the dynamics of individual primitive actions and the other to model the transitions between actions. In embodiments, the inference process estimates the best decomposition of the whole sequence into continuous alternating between the two set of models, using an approximate Viterbi algorithm. In this way, both action type and action boundary may be accurately recognized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.