Method and system for obstacle detection
US7164118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2004 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Oct 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S11/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for detecting the presence of an object or the distance between the system and an object supports the provision of rapid and reliable obstacle detection. A transmitter emits generally linear beams of electromagnetic radiation with a transmitted radiation pattern within a defined spatial zone. A camera collects an image of the defined spatial zone. A data processor detects a presence of an object in the collected image based on an observed illumination radiation pattern on an object formed by at least one of the generally linear beams. A distance estimator estimates a distance between the object and the optical device based on a change (e.g., an observed shift in one or more positions of generally linear beams) from the transmitted radiation pattern to the observed illumination radiation pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.