Multimodal object localization
US8174932B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2009 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Apr 24, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various embodiments of the present invention are directed to systems and methods for multimodal object localization using one or more depth sensors and two or more microphones. In one aspect, a method comprises capturing three-dimensional images of a region of space wherein the object is located. The images comprise three-dimensional depth sensor observations. The method collects ambient audio generated by the object, providing acoustic observation regarding the ambient audio time difference of arrival at the audio sensors. The method determines a coordinate location of the object corresponding to the maximum of a joint probability distribution characterizing the probability of the acoustic observations emanating from each coordinate location in the region of space and the probability of each coordinate location in the region of space given depth sensor observations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.