5903 search results - page 922 / 1181 » Signal Processing |
187
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ICIP
2002
IEEE
16 years 8 months ago
2002
IEEE
This paper studies a progressive image transmission technique over waveform channels. The Channel Optimized Vector Quantization codec (COVQ) [1] is applied to the image wavelet co...
168
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ICIP
2002
IEEE
16 years 8 months ago
2002
IEEE
In this paper we propose a novel data hiding procedure called Quantized Projection (QP), that combines elements from quantization (i.e. Quantization Index Modulation, QIM) and spr...
178
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ICIP
2002
IEEE
16 years 8 months ago
2002
IEEE
We present a hybrid approach to image watermarking that exploits results from both information theory and perceptual studies. Towards this purpose we use a waterfilling-type algor...
204
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ICIP
2001
IEEE
16 years 8 months ago
2001
IEEE
An automatic algorithm for indexing dialogue scenes in multimedia content is proposed. The content is segmented into dialogue scenes using the state transitions of a hidden Markov...
152
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ICIP
2001
IEEE
16 years 8 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...