Requantization transcoding for H.264/AVC video coding
Image Communication
The incentive secure mechanism based on quality of service in P2P network
Computers & Mathematics with Applications
Computers & Mathematics with Applications
Requantization transcoding of H.264/AVC bitstreams for intra 4×4 prediction modes
PCM'06 Proceedings of the 7th Pacific Rim conference on Advances in Multimedia Information Processing
Video transcoding: an overview of various techniques and research issues
IEEE Transactions on Multimedia
Transcoder architectures for video coding
IEEE Transactions on Consumer Electronics
Performance evaluation of transcoding algorithms for H.264
IEEE Transactions on Consumer Electronics
Bit rate transcoding of H.264 encoded movies by dropping frames in the compressed domain
IEEE Transactions on Consumer Electronics
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As described in this paper, an encoder that generates drift-error-resilient coded bitstreams is proposed. The proposed drift-error-resilient bitstreams are generated using the TotalCoeff or the total amount of non-zero DCT coefficients to estimate the drift-error distortion. This estimated drift error distortion is then examined in the motion estimation process. Results show that our proposed method can decrease drift error effectively compared to the original encoder and that it can achieve comparable PSNR to a conventional drift-error-resilient encoder. The main advantage of the proposed method compared to a conventional drift-error-resilient encoder is that, comparable PSNR performance, lower complexity and memory usage can be achieved without implementing an open-loop transcoder at the encoder feedback loop.