Patent · US Active

Visually tracking an object in real world using 2D appearance and multicue depth estimations

US8711221B2 · kind B2 · utility

10Cited by

0References

18Claims

0Family size

Assignee

Honda Research Institute Europe GmbH · DE

Inventors

Julian Eggert · Offenbach, DE
Sven Rebhan · Offenbach am Main, DE
Volker Willert · Darmstadt, DE
Chen Zhang · Redmond, US

Key dates

Filing date	Dec 9, 2008
Grant date	Apr 29, 2014
Priority date	—
Expiry date	Nov 22, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06T7/277
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Estimating the dynamic states of a real-world object over time using a camera, two dimensional (2D) image information and a combination of different measurements of the distance between the object and the camera. The 2D image information is used to track a 2D position of the object as well as its 2D size of the appearance and change in the 2D size of the appearance of the object. In addition, the distance between the object and the camera is obtained from one or more direct depth measurements. The 2D position, the 2D size, and the depth of the object are coupled to obtain an improved estimation of three dimensional (3D) position and 3D velocity of the object. The object tracking apparatus uses the improved estimation to track real-world objects. The object tracking apparatus may be used on a moving platform such as a robot or a car with mounted cameras for a dynamic visual scene analysis.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.