System for object detection by an autonomous mobile device
US11797022B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Jun 29, 2021 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Dec 25, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30261
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An autonomous mobile device (AMD) may move around a physical space while performing tasks. Sensor data is used to determine an occupancy map of the physical space. Some objects within the physical space may be difficult to detect because of characteristics that result in lower confidence in sensor data, such as transparent or reflective objects. To include difficult-to-detect objects in the occupancy map, image data is processed to identify portions of the image that includes features associated with difficult-to-detect objects. Given the portion that possibly includes difficult-to-detect objects, the AMD attempts to determine where in the physical space that portion corresponds to. For example, the AMD may use stereovision to determine the physical area associated with the features depicted in the portion. Objects in that area are included in an occupancy map annotated as objects that should persist unless confirmed to not be within the physical space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.