Process and device for the protection and display of video streams

摘要

A process distributing video streams to a plurality of addressees, comprising a marking step comprising adding at least one visual element to a video stream, which marking step is applied to an original video stream common to all the addressees and which is personalized for each addressee by addition of a visual element specific to the addressee that allows rapid visual identification of the addressee, wherein the added visual element replaces part of the original video stream that is stored in complementary information on a multimedia server.

主权项

1. A process for distributing video streams, the process comprising:
adding at least one visual element to an original video stream, wherein the at least one visual element is personalized for a respective addressee, in that the at least one visual element for the respective addressee is different from the at least one visual element for substantially any other addressee, wherein the at least one visual element comprises at least one item of information, and wherein adding the at least one visual element includes replacing at least one portion of the original video stream with the at least one visual element to generate a marked video stream; providing the marked video stream to the respective addressee via a first transport means; and providing complementary information, incorporating the at least one portion of the original video stream, to the respective addressee via a second transport means, different from the first transport means, in response to authentication of the respective addressee; wherein the at least one item of information is configured to appear in its entirety within a single frame of the marked video stream; wherein the marked video stream is configured such that display of the marked video stream without reconstruction using the complementary information causes the at least one item of information to be visible to an unaided eye; and wherein one or more frames containing the at least one item of information are present in the marked video stream, such that the at least one item of information is enabled to be displayed one or more times in the marked video stream.