Title :
A fast DCT domain downsampling technique for video transcoder
Author :
Kim, Nam-Hyeong ; Kim, Yoon ; Kwon, Goo-Rak ; Ko, Sung-Jea
Author_Institution :
Dept. of Electron. Eng., Korea Univ., Seoul, South Korea
Abstract :
We propose a fast DCT domain downsampling technique for video transcoding. Experimental results show that the proposed method is not only computationally efficient, but also gives significant improvements in PSNR.
Keywords :
data compression; discrete cosine transforms; image sampling; matrix algebra; transform coding; video coding; DCT domain; PSNR; computational efficiency; downsampling technique; transform matrix; video compression; video sequence; video transcoder; Bandwidth; Bit rate; Decoding; Discrete cosine transforms; PSNR; Spatial resolution; Streaming media; Transcoding; Video compression; Video sequences;
Conference_Titel :
Consumer Electronics, 2003. ICCE. 2003 IEEE International Conference on
Print_ISBN :
0-7803-7721-4
DOI :
10.1109/ICCE.2003.1218792
