Patent ID: 8989376
Filing Date: 2015-03-24
Classification: G06K,H04L,H04N

Abstract:
1. A method for authenticating video content, comprising: receiving a digital signature, a received video fingerprint, and a video content from a transmitting node at a receiving node in a communication network, wherein the received video fingerprint is a received version of an original video fingerprint that is derived from an original video content using a fingerprinting algorithm that derives said original video fingerprint based on trajectories of movement of salient feature points detected from sampled frames of the original video content prior to transmission of the original video fingerprint by the transmitting node; verifying the received video fingerprint by determining if the digital signature is consistent with the received video fingerprint at the receiving node; and verifying the video content by determining if the received video fingerprint is consistent with the video content at the receiving node in a manner that tolerates a predetermined measure of loss in the video content, wherein the verifying the video content includes generating a fresh video fingerprint by processing the video content at the receiving node using the fingerprinting algorithm; wherein, if the received video fingerprint and the video content are verified, the video content is authenticated for subsequent use at the receiving node.