Thursdays the PTO publishes new pending patent applications. This week's Spotlight Applications address aspects of digital fingerprinting and digital watermarking. Assigned to Dolby, the first of this week's applications concerns techniques for identifying multimedia objects based on multimedia fingerprint. Assigned to IBM, the second application concerns techiques for virtual world embedded security watermarking.
20130279740, "Identifying multimedia objects based on multimedia fingerprint," assigned to Dolby.
Embodiments of identifying multimedia objects based on multimedia fingerprints are provided. Query fingerprints are derived from a multimedia object according to differing fingerprint algorithms. For each fingerprint algorithm, decisions are calculated through at least one classifier corresponding to the fingerprint algorithm based on the query fingerprint and reference fingerprints, the reference fingerprints being derived from reference multimedia objects according to the same fingerprint algorithm. Each of the decisions indicates a possibility that the query fingerprint and the reference fingerprint are not derived from the same multimedia content. For each of the reference multimedia objects, a distance is calculated as a weighted sum of the decisions relating to the reference fingerprints. The multimedia object is identified as matching the reference multimedia object with the smallest distance less than a threshold.
20130283055, "Virtual world embedded security watermarking," assigned to IBM.
A method, apparatus, and program product are provided for using watermarks to embed security features on avatars in a virtual world. A watermark engine receives security information for an avatar in a virtual world. The watermark engine creates a watermark for the avatar using the security information and associates the watermark with the avatar. The watermark may comprise at least one of: security preferences for the avatar, contact information for an owner of the avatar, and graphical information to cause alteration of the avatar when the avatar is recorded.