Patent · US Active

Hand pointing estimation for human computer interaction

US9372546B2 · kind B2 · utility

3Cited by

121References

20Claims

0Family size

Assignee

The Research Foundation for The State University of New York · US

Inventors

Lijun Yin · Vestal, US
Shaun Canavan · Vestal, US
Kaoning Hu · Vestal, US

Key dates

Filing date	Sep 3, 2015
Grant date	Jun 21, 2016
Priority date	—
Expiry date	Sep 3, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06V10/467
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Hand pointing has been an intuitive gesture for human interaction with computers. A hand pointing estimation system is provided, based on two regular cameras, which includes hand region detection, hand finger estimation, two views' feature detection, and 3D pointing direction estimation. The technique may employ a polar coordinate system to represent the hand region, and tests show a good result in terms of the robustness to hand orientation variation. To estimate the pointing direction, Active Appearance Models are employed to detect and track, e.g., 14 feature points along the hand contour from a top view and a side view. Combining two views of the hand features, the 3D pointing direction is estimated.

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