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ISCAS
2003
IEEE
79views Hardware» more  ISCAS 2003»
13 years 10 months ago
Computation reduction in cascaded DCT-domain video downscaling transcoding
In this paper, we propose efficient techniques and architectures for realizing spatial-downscaling transcoders in the DCT domain. We also present methods for re-sampling motion ve...
Yuh-Ruey Lee, Chia-Wen Lin, Yen-Wen Chen
ICIP
2003
IEEE
14 years 6 months ago
New DCT-domain transcoding using split and merge technique
For the conventional downscaling video transcoder. the video server would be to first decompress the video, perform the downscaling operation in the pixel domain. and then recompr...
Kai-Tat Fung, Wan-Chi Siu
ICIP
2005
IEEE
14 years 6 months ago
DCT-domain spatial transcoding using generalized DCT decimation
In this paper, we propose a generalized DCT-domain spatial downscaling scheme to improve the visual quality. We analyze the filtering performances and computational complexities o...
Yuh-Ruey Lee, Chia-Wen Lin
TIP
2002
114views more  TIP 2002»
13 years 4 months ago
New architecture for dynamic frame-skipping transcoder
Abstract--Transcoding is a key technique for reducing the bitrate of a previously compressed video signal. A high transcoding ratio may result in an unacceptable picture quality wh...
Kai-Tat Fung, Yui-Lam Chan, Wan-Chi Siu
ICIP
2001
IEEE
14 years 6 months ago
Fast algorithms for DCT-domain video transcoding
Video transcoding is an efficient way for. rate adaptation and format conversion in various networked video applications. Many transcoder architectures have been proposed to achie...
Chia-Wen Lin, Yuh-Ruey Lee