Unlock instant, AI-driven research and patent intelligence for your innovation.

Combined video desynchronization and compression method against collusion fingerprint and corresponding coding apparatus and coding video stream

A compression method and compression coding technology, applied in the direction of digital video signal modification, TV, color TV, etc., can solve the problems of time-consuming, inability to effectively prevent savage attacks, insufficient security, etc., and achieve the effect of less operation

Inactive Publication Date: 2008-01-02
FRANCE TELECOM SA
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In addition, the above method does not use blind watermarking technology, and is limited to time synchronization, so it cannot effectively prevent brutal attacks
[0015] Finally, following the above method proposed by Mao et al., extracting fingerprints from fingerprinted videos requires resynchronization of the copy or desynchronization of the original media, which is time-consuming and insecure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combined video desynchronization and compression method against collusion fingerprint and corresponding coding apparatus and coding video stream
  • Combined video desynchronization and compression method against collusion fingerprint and corresponding coding apparatus and coding video stream
  • Combined video desynchronization and compression method against collusion fingerprint and corresponding coding apparatus and coding video stream

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] Embodiments of the present invention may embed fingerprints in raw digital video streams and extract fingerprints from processed video streams.

[0076] As shown in Figure 1, the fingerprint embedding method according to the present invention includes three stages, by which the first original digital video stream 11 composed of a continuous sequence of original video frames can be processed, and finally a second sequence of encoded frames is obtained. Process the resulting video stream 15, namely:

[0077] - a first stage 12 of selecting those encoded frames to be included in said second sequence of encoded frames, thereby computing target images or frames (we also call templates) in said processing result video stream 15;

[0078] - second stage 13, performing a pipelined "one-shot" combined temporal desynchronization and compression process on the video stream;

[0079] - The third stage 14, embedding fingerprint information into the above-mentioned processed video s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention uses a combination video desynchronization and compression method to treat an initial video flow composed of a first sequence of continuous initial video frames, to obtain a result video flow composed of a second code frame sequence, wherein the first step comprises that selecting a frame needing space and / or time desynchronization, and referring motion compensation and conversion mixed code standard as MPEG-2 or H-264 compression standard or the like to distribute one standard for each selected frame, as I-frame, P-frame, B-frame or (sheet)F-frame, and the second step comprises that using public motion evaluation treatment, via combined time desynchronization and compression method to one-time process the initial video flow composed of continuously treated the selected frames. The inventive method can use blind watermark to add fingerprint for video.

Description

technical field [0001] The present invention relates to a computer-implemented video signal processing method and apparatus applied to digital video streams. Primarily for so-called "digital rights management" (DRM) systems that can use fingerprints and track video streams and their copies. [0002] In order to prevent users, such as movie theaters, professional video editors (including news, advertising, art and other video editors) from illegally copying or distributing videos, an effective technical means is to copy to the original video or distributed video (movies, etc.) Insert an imperceptible identification mark in the form of a fingerprint. When a copy is used or distributed illegally, the distributor can be identified with an embedded fingerprint to prevent this illegal activity. [0003] The method and device according to the invention are fully compatible with motion compensation and transform hybrid coding standards, such as MPEG-2 or H.264 compression standards....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04N7/24H04N5/913
CPCG06T1/0085G06T2201/0083G06T2201/0063H04N19/00557G06T2201/0053H04N21/234381H04N21/8358H04N19/467
Inventor 刘忠轩廉士国任真王荣刚
Owner FRANCE TELECOM SA