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ICIP
2001
IEEE
15 years 11 months ago
A rate-distortion optimal video pre-processing algorithm
Pre-processing algorithms improve the quality of a compression system by removing unimportant data before encoding. This enhances both the visual quality and coding efficiency of ...
C. Andrew Segall, Passant V. Karunaratne, Aggelos ...
IEEEIAS
2009
IEEE
15 years 4 months ago
Octagonal Search Algorithm with Early Termination for Fast Motion Estimation on H.264
: An adaptive threshold for early termination is proposed in this paper to enhance the cross octagonal search algorithm (COSA)[1]. In block motion estimation, search patterns have ...
Zhaopeng Cui, Dujuan Wang, Guang Jiang, Chengke Wu
ICC
2007
IEEE
113views Communications» more  ICC 2007»
15 years 4 months ago
Load-Balanced Clustering Algorithms for Wireless Sensor Networks
— In this paper, we investigate the problem of grouping the sensor nodes into clusters to enhance the overall scalability of the network. A selected set of nodes, known as gatewa...
Chor Ping Low, Can Fang, Jim Mee Ng, Yew Hock Ang
KES
2005
Springer
15 years 3 months ago
Watermarking Protocol Compatible with Secret Algorithms for Resisting Invertibility Attack
Abstract. Invertibility attack is a hostile measure to breach watermarking systems. In this paper, a novel watermarking protocol using a one-way hash function and a check of random...
Xinpeng Zhang, Shuozhong Wang
PPSN
1998
Springer
15 years 2 months ago
A Decoder-Based Evolutionary Algorithm for Constrained Parameter Optimization Problems
Several methods have been proposed for handling nonlinear constraints by evolutionary algorithms for numerical optimization problems; a survey paper [7] provides an overview of var...
Slawomir Koziel, Zbigniew Michalewicz