Patent · US Active

Object density estimation in video

US9240051B2 · kind B2 · utility

8Cited by

23References

19Claims

0Family size

Assignee

AVIGILON FORTRESS CORPORATION · CA

Inventors

Haiying Liu · Houghton, US
Peter L. Venetianer · McLean, US
Niels Haering · Reston, US
Omar Javed · Willingboro, US
Alan J. Lipton · Herndon, US
Andrew J. Martone · Reston, US
Zeeshan Rasheed · Reston, US
Weihong Yin · Herndon, US
Li Yu · Herndon, US
Zhong Zhang · Herndon, US

Key dates

Filing date	Nov 21, 2006
Grant date	Jan 19, 2016
Priority date	—
Expiry date	Jul 14, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30241
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A video camera may overlook a monitored area from any feasible position. An object flow estimation module monitor the moving direction of the objects in the monitored area. It may separate the consistently moving objects from the other objects. A object count estimation module may compute the object density (e.g. crowd). A object density classification module may classify the density into customizable categories.

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