SIGNAL CONTINUITY ASSESSMENT USING EMBEDDED WATERMARKS

摘要

Methods, apparatus, and systems for signal continuity assessment using embedded watermarks are provided. The embedded watermarks are recovered from the content and one or more attributes associated with the recovered watermarks are identified. A continuity of the content can then be assessed in accordance with the one or more attributes. The continuity assessment may be based on a variety of factors, including but not limited to a determined heartbeat of the recovered watermarks, a density, separation, location, or extent, of the recovered watermarks, as well as information associated with the watermarks, such as a stego key, channel bits, packet numbers, a fingerprint, or the like.

主权项

1. A method for detecting a change in arrangement of sections of a content, comprising:
receiving a multimedia content; extracting at least two watermark messages from the multimedia content; determining a physical separation between a first one of the at least two extracted watermark messages and a second one of the at least two extracted watermark messages within the multimedia content; using the payloads of the at least two extracted watermark messages to retrieve metadata associated with the at least two watermark messages; and processing the retrieved metadata in conjunction with the determined physical separation to detect a change in arrangement of the multimedia content sections.