Sciweavers

307 search results - page 46 / 62
» Video Adaptation for Transmission Channels by Utility Modeli...
Sort
View
JSAC
2008
254views more  JSAC 2008»
15 years 5 months ago
Cross-Layer Based Opportunistic MAC Protocols for QoS Provisionings Over Cognitive Radio Wireless Networks
We propose the cross-layer based opportunistic multi-channel medium access control (MAC) protocols, which integrate the spectrum sensing at physical (PHY) layer with the packet sch...
Hang Su, Xi Zhang
ICIP
2007
IEEE
16 years 2 days ago
Buffer Constrained Proactive Dynamic Voltage Scaling for Video Decoding Systems
Significant power savings can be achieved on voltage/frequency configurable platforms by dynamically adapting the frequency and voltage according to the workload (complexity). Vid...
Emrah Akyol, Mihaela van der Schaar
IWDW
2005
Springer
15 years 11 months ago
Robustness Enhancement of Content-Based Watermarks Using Entropy Masking Effect
Image-Adaptive watermarking systems exploit visual models to adapt the watermark to local properties of the host image. This leads to a watermark power enhancement, hence an improv...
Amir Houman Sadr, Shahrokh Ghaemmaghami
CORR
2010
Springer
219views Education» more  CORR 2010»
15 years 4 months ago
Cooperative Algorithms for MIMO Interference Channels
Interference alignment is a transmission technique for exploiting all available degrees of freedom in the symmetric frequency- or time-selective interference channel with an arbit...
Steven W. Peters, Robert W. Heath Jr.
TCSV
2008
148views more  TCSV 2008»
15 years 5 months ago
Modeling Background and Segmenting Moving Objects from Compressed Video
Abstract--Modeling background and segmenting moving objects are significant techniques for video surveillance and other video processing applications. Most existing methods of mode...
Weiqiang Wang, Jie Yang, Wen Gao