Video error correction using steganography
David L. Robie,R.M. Mersereau +1 more
TL;DR: This MPEG-2 compliant codec uses data hiding to transmit error correction information and several error concealment techniques in the decoder, which allows for a much higher quality picture in an error-prone environment while creating an almost imperceptible degradation of the picture in a error-free environment.
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Abstract: The transmission of any data is always subject to corruption due to errors, but video transmission, because of its real time nature must deal with these errors without retransmission of the corrupted data. The error can be handled using forward error correction in the encoder or error concealment techniques in the decoder. This MPEG-2 compliant codec uses data hiding to transmit error correction information and several error concealment techniques in the decoder. The decoder resynchronizes more quickly with fewer errors than traditional resynchronization techniques. It also allows for perfect recovery of differentially encoded DCT-DC components and motion vectors. This provides for a much higher quality picture in an error-prone environment while creating an almost imperceptible degradation of the picture in an error-free environment.
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Citations
Video steganography: a comprehensive review
TL;DR: This paper intends to provide an up-to-date comprehensive review on the various video steganographic methods found in the literature in the last 5 years, and some relevant attacks and steganalysis techniques are surveyed.
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Comparative evaluation of semifragile watermarking algorithms
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Fabien A. P. Petitcolas,Ross Anderson,Markus G. Kuhn +2 more
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Neil F. Johnson,Sushil Jajodia +1 more
TL;DR: It is argued that steganography by itself does not ensure secrecy, but neither does simple encryption, and if these methods are combined, however, stronger encryption methods result.
1.1K
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