Title :
Visually improved DCT based down-sampling method for H.264 SVC
Author :
Shin, IlHong ; Yu, Jeongju ; Ryu, Won
Abstract :
In a scalable video coding (SVC), spatial down/up-sampling of video sequences is an essential process for spatial scalability. We propose a spatial down-sampling method based on the DCT, with which down-sampling of H.264 SVC can be fast and visually improved. For aliasing reduction, an optimized frequency weighting parameter is used for making a spatial domain down-sampling filter for DCT. A fast algorithm with matrix decomposition and fast DCT makes proposed method applicable to scalable video encoder.
Keywords :
data compression; discrete cosine transforms; image sampling; image sequences; matrix decomposition; spatial filters; video coding; H.264 SVC; aliasing reduction; discrete cosine transform; matrix decomposition; optimized frequency weighting parameter; scalable video coding; scalable video encoder; spatial domain downsampling filter; spatial downsampling method; spatial upsampling method; video sequences; visually improved DCT; Discrete cosine transforms; Filters; Frequency response; Kernel; Least squares methods; Matrix decomposition; Scalability; Static VAr compensators; Video coding; Video sequences;
Conference_Titel :
Consumer Electronics (ICCE), 2010 Digest of Technical Papers International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-4314-7
Electronic_ISBN :
978-1-4244-4316-1
DOI :
10.1109/ICCE.2010.5419006
