Patent ID: 8923548
Filing Date: 2014-12-30
Classification: G06K,G06T

Abstract:
1. A method, comprising extracting a plurality of tentative watermarks from an embedded host content, each tentative watermark representing a candidate watermark with an associated probability of false watermark detection that exceeds a desired probability of false watermark detection; obtaining estimated distortion information associated with one or more distortions present in the embedded host contents using at least two of the extracted tentative watermarks; based on the estimated distortion information, obtaining one or more pre-distorted watermark templates, each pre-distorted watermark template representing a watermark that would be extracted from the host content when a specific distortion or a specific combination distortions is present in the host content; and re-evaluating at least one of the extracted tentative watermarks using the one or more pre-distorted watermark templates.