218 search results - page 20 / 44 » Directional Discrete Cosine Transforms for Image Coding |
ECMAST
1998
Springer
13 years 11 months ago
1998
Springer
For communication using digital video, compression is mandatory because of the high bit-rate requiring a large bandwidth or storage capacity. Recent developments as well as upcomi...
EUROPAR
2005
Springer
14 years 9 days ago
2005
Springer
In H.264/AVC [1], integer transforms are applied instead of the 8×8 discrete cosine transform (DCT) of previous standards to avoid inverse transform mismatch problems. However, th...
ICIP
2005
IEEE
14 years 8 months ago
2005
IEEE
Spread spectrum (SS) or known-host-statistics technique has shown the best performance in terms of both rate of reliable communications and bit error probability at the low waterm...
ISCAS
2007
IEEE
14 years 1 months ago
2007
IEEE
—In this paper, we investigate image compression using 2D Dual-tree Discrete Wavelet Transform (DDWT), which is an overcomplete transform with direction-selective basis functions...
GECCO
2005
Springer
14 years 9 days ago
2005
Springer
We propose an evolutionary algorithm for the enhancement of digital semi-fragile watermaking based on the manipulation of the image discrete cosine transform (DCT). The algorithm ...