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JEI
2008
129views more  JEI 2008»
15 years 5 months ago
Removable visible image watermarking algorithm in the discrete cosine transform domain
Abstract. A removable visible watermarking scheme, which operates in the discrete cosine transform (DCT) domain, is proposed for combating copyright piracy. First, the original wat...
Ying Yang, Xingming Sun, Hengfu Yang, Chang-Tsun L...
TCOM
2010
162views more  TCOM 2010»
15 years 1 months ago
Power Allocation in MMSE Relaying over Frequency-Selective Rayleigh Fading Channels
Abstract--This paper develops an amplify-and-forward relaying scheme for multiuser wireless cooperative networks under frequency-selective block-fading. Single-carrier frequency di...
Tung T. Pham, Ha H. Nguyen, Hoang Duong Tuan
ISBI
2007
IEEE
16 years 1 months ago
Patch-Based Nonlocal Denoising for MRI and Ultrasound Images
Image model plays a critical role in recovering diagnosis-relevant information from noisy observation data. Unlike conventional denoising techniques based on local models, a patch...
Xin Li
ICCNMC
2005
Springer
16 years 6 days ago
DHAI: Dynamic Hierarchical Agent-Based Infrastructure for Supporting Large-Scale Distributed Information Processing
The emergence of Internet, Intranet, local area networks, and ad hoc wireless networks introduces a plethora of new problems in information processing. In order to overcome these p...
Jinlong Wang, Congfu Xu, Huifeng Shen, Zhaohui Wu,...
IWCM
2004
Springer
16 years 4 days ago
Wiener-Optimized Discrete Filters for Differential Motion Estimation
Abstract. Differential motion estimation is based on detecting brightness changes in local image structures. Filters approximating the local gradient are applied to the image seque...
Kai Krajsek, Rudolf Mester