Identifying spatial locations of events within video image data
US8971580B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2013 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Aug 27, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/44
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An invention for identifying a spatial location of an event within video image data is provided. Disclosed are embodiments for generating trajectory data of a trajectory of an object for a plurality of pixel regions of an area of interest within video image data, the generating comprising: identifying one or more pixel regions from the plurality of pixel regions containing trajectory data; performing a multi-point neighborhood scan within the one or more pixel regions from the plurality of pixel regions containing trajectory data; and generating a transition chain code based on the multi-point neighborhood scan. Embodiments further generate a set of compressed spatial representations of the trajectory data of the trajectory of the object for an event based on the transition chain code, and generate a lossless contour code of the trajectory data of the trajectory of the object for the event based on the transition chain code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.