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
Heterogeneous video transcoding to lower spatio-temporalresolutions and different encoding formats
IEEE Transactions on Multimedia
Minimum drift architectures for 3-layer scalable DTV decoding
IEEE Transactions on Consumer Electronics
Motion vector composition algorithm for spatial scalability in compressed video
IEEE Transactions on Consumer Electronics
Manipulation and compositing of MC-DCT compressed video
IEEE Journal on Selected Areas in Communications
Layered image coding using the DCT pyramid
IEEE Transactions on Image Processing
Architectures for MPEG compressed bitstream scaling
IEEE Transactions on Circuits and Systems for Video Technology
Fast algorithms for DCT-domain image downsampling and for inverse motion compensation
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
IEEE Transactions on Circuits and Systems for Video Technology
A fast scheme for image size change in the compressed domain
IEEE Transactions on Circuits and Systems for Video Technology
Efficient hybrid DCT-domain algorithm for video spatial downscaling
EURASIP Journal on Advances in Signal Processing
EURASIP Journal on Advances in Signal Processing
An efficient compressed domain spatial transcoding scheme for adaptive video content delivery
PCM'10 Proceedings of the Advances in multimedia information processing, and 11th Pacific Rim conference on Multimedia: Part II
Hi-index | 0.00 |
Video transcoding is an efficient way for rate adaptation and format conversion in various networked video applications. Several transcoder architectures have been proposed to achieve fast processing. Recently, thanks to its relatively low complexity, the DCT-domain transcoding schemes have become very attractive. In this paper, we investigate efficient architectures for video downscaling in the DCT domain. We propose an efficient method for composing downscaled motion vectors and determining coding modes. We also present a fast algorithm to extract partial DCT coefficients in the DCT-MC operation and a simplified cascaded DCT-domain video transcoder architecture.