Patent · US Active

Scalable media fingerprint extraction

US8571255B2 · kind B2 · utility

4Cited by

0References

14Claims

0Family size

Assignee

Dolby Laboratories Licensing Corporation · US

Inventors

Claus Bauer · Cologne, DE
Regunathan Radhakrishnan · Foster City, US
Wenyu Jiang · Beijing, CN
Glenn N. Dickins · Sydney, AU

Key dates

Filing date	Jan 7, 2010
Grant date	Oct 29, 2013
Priority date	—
Expiry date	Aug 24, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG06V10/771
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Derivation of a fingerprint includes generating feature matrices based on one or more training images, generating projection matrices based on the feature matrices in a training process, and deriving a fingerprint for one or more images by, at least in part, projecting a feature matrix based on the one or more images onto the projection matrices generated in the training process.

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