Constrained and general dynamic rate shaping of compressed digital video
ICIP '95 Proceedings of the 1995 International Conference on Image Processing (Vol. 3)-Volume 3 - Volume 3
ICIP '95 Proceedings of the 1995 International Conference on Image Processing (Vol. 3)-Volume 3 - Volume 3
Post-processing of MPEG2 coded video for transmission at lower bit rates
ICASSP '96 Proceedings of the Acoustics, Speech, and Signal Processing, 1996. on Conference Proceedings., 1996 IEEE International Conference - Volume 04
Motion estimation for high performance transcoding
IEEE Transactions on Consumer Electronics
Manipulation and compositing of MC-DCT compressed video
IEEE Journal on Selected Areas in Communications
Architectures for MPEG compressed bitstream scaling
IEEE Transactions on Circuits and Systems for Video Technology
A frequency-domain video transcoder for dynamic bit-rate reduction of MPEG-2 bit streams
IEEE Transactions on Circuits and Systems for Video Technology
Motion based object tracking in MPEG-2 stream for perceptual region discriminating rate transcoding
MULTIMEDIA '01 Proceedings of the ninth ACM international conference on Multimedia
MULTIMEDIA '01 Proceedings of the ninth ACM international conference on Multimedia
An efficient complexity-scalable video transcoder with mode refinement
Image Communication
Fast perceptual region tracking with coding-depth sensitive access for stream transcoding
Journal of Visual Communication and Image Representation
Motion information exploitation in H.264 frame skipping transcoding
ACIVS'07 Proceedings of the 9th international conference on Advanced concepts for intelligent vision systems
Video transcoding to support random access in scalable video coding
WSEAS Transactions on Signal Processing
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Video transcoding is one of the key technologies in implementing dynamic adaptation of the bit rate of a pre-encoded video stream to the available bandwidth over various networks. Many different transcoder architectures have been proposed to achieve fast processing. However, they suffer from quality degradation due to the drift error. In this paper, we investigate the drift caused by the fast transcoder architectures for transcoding H.263 bitstreams. We also discuss the limitations of the existing fast transcoder architectures and the flexibility that can be offered by a cascaded pixel-domain transcoder. In favor of drift-free performance and transcoding flexibility, we propose methods to reduce the computational complexity of the cascaded pixel-domain transcoder.