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ICIP
2001
IEEE
16 years 8 months ago
Hierarchical watermarking depending on local constraints
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...
Christopher D. Coltman, Adrian G. Bors
ICIP
1994
IEEE
16 years 8 months ago
Adaptive Spline-Wavelet Image Encoding and Real-Time Synthesis
A wavelet-based image-encoding is described which, when used in conjunction with the Di erence Engine (a customdesigned VLSI display processor) allows us to reconstruct an image i...
Patrick Marais, Edwin H. Blake, Alfons A. M. Kuijk
303
Voted
ICDE
2007
IEEE
124views Database» more  ICDE 2007»
16 years 8 months ago
The Haar+ Tree: A Refined Synopsis Data Structure
We introduce the Haar+ tree: a refined, wavelet-inspired data structure for synopsis construction. The advantages of this structure are twofold: First, it achieves higher synopsis...
Panagiotis Karras, Nikos Mamoulis
354
Voted
ICDE
2007
IEEE
173views Database» more  ICDE 2007»
16 years 8 months ago
Top-k Query Processing in Uncertain Databases
Top-k processing in uncertain databases is semantically and computationally different from traditional top-k processing. The interplay between score and uncertainty makes traditio...
Mohamed A. Soliman, Ihab F. Ilyas, Kevin Chen-Chua...
258
Voted
ICDE
2006
IEEE
116views Database» more  ICDE 2006»
16 years 8 months ago
Predicate-based Filtering of XPath Expressions
The XML/XPath filtering problem has found wide-spread interest. In this paper, we propose a novel algorithm for solving it. Our approach encodes XPath expressions (XPEs) as ordere...
Shuang Hou, Hans-Arno Jacobsen