160 search results - page 8 / 32 » Image resizing in the discrete cosine transform domain |
ICASSP
2009
IEEE
15 years 4 months ago
2009
IEEE
Current audio coding standards employ the modified discrete cosine transform (MDCT) where overlapped frames of audio are windowed and transformed to the frequency domain. Encodin...
TIP
1998
14 years 9 months ago
1998
—Two new design techniques for adaptive orthogonal block transforms based on vector quantization (VQ) codebooks are presented. Both techniques start from reference vectors that a...
ICIP
2002
IEEE
15 years 11 months ago
2002
IEEE
We study properties of the discrete cosine transform (DCT) when applied to an image sequence formed by uniformly translating a still image. The Fourier transform (FT) applied to s...
ICIP
2009
IEEE
14 years 7 months ago
2009
IEEE
Intra-predictive transforms are a kind of block-based transforms that can exploit both the intra- and inter-block correlations. This paper analyzes the coding gains of intra-predi...
ICBA
2004
Springer
15 years 3 months ago
2004
Springer
A MPEG-4 compressed domain video watermarking method is proposed and its performance is studied at video bit rates ranging from 64 Kb/s to 900 Kb/s. The watermark is inserted by mo...