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ICIP
1999
IEEE
14 years 7 months ago
1999
IEEE
Wavelet packets are an effective representation tool for adaptive waveform analysis of a given signal. We first combine the wavelet packet representation with zerotree quantizatio...
ICIP
2009
IEEE
14 years 6 months ago
2009
IEEE
In this paper, we perform double embedding in the quantization index modulation (QIM) framework where a single coefficient is modified twice, using two quantizers, to embed two bi...
DCC
2004
IEEE
14 years 5 months ago
2004
IEEE
In this paper, we build multi-resolution source codes using entropy constrained dithered scalar quantizers. We demonstrate that for n-dimensional random vectors, dithering followe...
DCC
2001
IEEE
14 years 5 months ago
2001
IEEE
This paper studies quantization error in the context of Matching Pursuit coded streams and proposes a new coefficient quantization scheme taking benefit of the Matching Pursuit pr...
ICIP
2001
IEEE
14 years 7 months ago
2001
IEEE
In this paper we propose a new watermarking technique where the watermark is embedded according to two keys. The first key is used to embed a code bit in a block of pixels. The se...