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ICIP
1999
IEEE
15 years 11 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
15 years 10 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
15 years 9 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
15 years 9 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
15 years 11 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...