Steganographically encoded video, deriving or calculating identifiers from video, and related methods

摘要

This application relates, e.g., to processing video and audio. One claim recites a method including: utilizing a multi-purpose electronic processor programmed for analyzing a video signal to derive or calculate an identifier from data representing picture elements of the video signal or from data representing audio accompanying the video signal; providing the identifier to memory or to a remote repository to obtain advertizing information; receiving advertizing information from the memory or the remote repository; and controlling rendering of the advertizing information such that the advertizing information is synchronized with at least a portion of the video signal when rendered. Of course, additional claims and combinations are provided.