Patent · US Active

Image processing device for detecting and suppressing shadows, method, and computer program

US8254628B2 · kind B2 · utility

0Cited by

3References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Marcel Merkel · Hildesheim, DE
Jan Karl Warzelhan · Bad Salzdetfurth, DE
Matthias Koenig · Hildesheim, DE

Key dates

Filing date	Feb 27, 2008
Grant date	Aug 28, 2012
Priority date	—
Expiry date	Apr 8, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30232
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An image processing device for the detection and suppression of shadows in a camera image of a surveilled scene, the camera image optionally showing static objects with static shadow regions and moving objects with dynamic shadow regions, includes a long-term module, which is designed to generate a long-term reference image of the surveilled scene by evaluating a long-term observation of a particular scene, a mid-term module, which is designed to generate a mid-term reference image of the surveilled scene by evaluating a mid-term observation of the particular scene, and a shadow detection module, which is designed to process camera image—using information technology—with long-term reference image and mid-term reference image, in order to detect and suppress shadows.

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