Optimal error protection for real time image

A theoretical analysis of the overall mean squared error (MSE) in hybrid video coding is presented for the case of error prone transmission. Our model covers the complete transmission system including the rate-distortion performance of the video encoder, forward error correction, interleaving

and data adaptation scheme for downlink video transmission in a multi-user wireless network. We formulate a rate-distortion optimization problem, where the source coding and data rate are jointly designed according to the changing channel conditions. In addition, transmissions ofvideo packets are optimally

Abstract—In this paper, we study statistical multiplexing of VBR video in ATM networks. ATM promises to provide high speed realtime multi-point to central video transmission for telemedicine applications in rural hospitals and in emergency medical services. Video coders are known to produce

with lattice vector quantization for efficient compression. With this approach additionallower bitrate layers can be transmitted at the same overall bitrate as needed by an H.263 single-layer transmission. The complexity of the codec is sufficiently low to allow software-only implementations of Internet video

Abstract- Video transmission is nowa days become a well established facility and has many applications.Video transmission over wireless network requires link reliability. videos are having more data to be transmitted during communication. Traditional routing protocol suffers from limitation like

The submitted manuscript has been authored by a contractor of the U.S. Government under contract No. DE-AC05-84OR21400. Accordingly, the U.S. Government retains a paid-up nonexclusive, irrevocable, worldwide license to publish or reproduce the published form of this contribution, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, or allow others to do so, for U.S. Government purposes. Presented at the

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eingereicht und durch die Fakultät für Elektrotechnik und Informationstechnik am 24.09.2008 angenommen. Preface I have made this letter longer than usual, only because I have not had the time to make it shorter. Blaise Pascal, (1623-1662), Lettres provinciales. This thesis has been written during my time as a research assistant at the Institute for Communications

or more drawbacks. This paper uses F5 algorithm for information hiding. F5 offers huge capacity for steganography. F5 is based on matrix encoding. The proposed system is evaluated on the basis of its ability to hide and retrieve the information correctly. In recent days video steganography is considered