57 search results - page 9 / 12 » VQ-adaptive block transform coding of images |
TIP
2010
13 years 7 months ago
2010
—Compound images are a combination of text, graphics and natural image. They present strong anisotropic features, especially on the text and graphics parts. These anisotropic fea...
TIT
1998
13 years 8 months ago
1998
In this article we review some recent interactions between harmonic analysis and data compression. The story goes back of course to Shannon’s R(D) theory in the case of Gaussian...
TMM
2002
13 years 8 months ago
2002
In this paper a hybrid fractal and Discrete Cosine transform (DCT) coder is developed. Drawing on the ability of DCT to remove inter-pixel redundancies and on the ability of fracta...
DCC
2000
IEEE
14 years 1 months ago
2000
IEEE
This paper contains two contributions to very-low-bitrate video coding. First, we show that in contrast to common practice incremental techniques for rate-distortion optimization ...
JIPS
2010
13 years 3 months ago
2010
This paper proposes a novel reversible data hiding scheme based on a Vector Quantization (VQ) codebook. The proposed scheme uses the principle component analysis (PCA) algorithm to...