Patent · US Active

Systems and methods for segmenation by removal of monochromatic background with limitied intensity variations

US8411986B2 · kind B2 · utility

3Cited by

12References

20Claims

0Family size

Assignee

FLASHFOTO, INC. · US

Inventors

Katharine Ip · San Francisco, US
Robinson Piramuthu · Oakland, US
Paul King · San Francisco, US

Key dates

Filing date	Apr 13, 2010
Grant date	Apr 2, 2013
Priority date	—
Expiry date	Oct 23, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06V10/248
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for distinguishing a foreground object from a monochromatic background in a digital image depicting a foreground object in front of said monochromatic background. A outer edge intensity map is created of the foreground object to which a tracing process is conducted. A continuous edge map is created by utilizing the traced edges in the outer edge intensity map. By selecting a path on the continuous edge map based on average edge intensity, a final edge map is created. The pixels comprised within the final edge map are distinguished as the foreground object. Optionally, the final edge map may be refined utilizing certain techniques.

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