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MPSoC Design using Application-Specific Architecturally Visible Communication

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Dependent packet transmission policies in rate-distortion optimized media scheduling

Pascal Frossard, Christophe De Vleeschouwer

This paper addresses the problem of streaming packetized media over a lossy packet network, with sender-driven (re)transmissions and receiver acknowledgments. It extends the markovian formulation of the rate- distortion optimized (RaDiO) streaming framewor ...

2007

Reduction of Register File Delay Due to Process Variability in VLIW Embedded Processors

Giovanni De Micheli, David Atienza Alonso, José Luis Ayala Rodrigo

Process variation in future technologies can cause severe performance degradation since different parts of the shared Register File (RF) in VLIW processors may operate at various speeds. In this paper we present a complete approach that handles speed varia ...

2007

JPEG2000 image coding system theory and applications

Touradj Ebrahimi

JPEG2000, the new standard for still image coding, provides a new framework and an integrated toolbox to better address increasing needs for compression. It offers a wide range of functionalities such as lossless and lossy coding, embedded lossy to lossles ...

2006

Optimized Transmission of JPEG2000 Streams Over Wireless Channels

Nikolaos Thomos

The transmission of JPEG2000 images over wireless channels is examined using reorganization of the compressed images into error-resilient, product-coded streams. The product-code consists of Turbo-codes and Reed-Solomon codes which are optimized using an i ...

Institute of Electrical and Electronics Engineers2006

Temporal Streaming of Shared Memory

Anastasia Ailamaki, Babak Falsafi

Coherent read misses in shared-memory multiprocessors account for a substantial fraction of execution time in many important scientific and commercial workloads. We propose Temporal Streaming, to eliminate coherent read misses by streaming data to a proces ...

2005

Store-Ordered Streaming of Shared Memory

Anastasia Ailamaki, Babak Falsafi

Coherence misses in shared-memory multiprocessors account for a substantial fraction of execution time in many important scientific and commercial workloads. Memory streaming provides a promising solution to the coherence miss bottleneck because it improve ...

2005

Video surveillance using JPEG 2000

Touradj Ebrahimi, Frédéric Dufaux

This paper describes a video surveillance system which is composed of three key components, smart cameras, a server, and clients, connected through IP-networks in wired or wireless configurations. The system has been designed so as to protect the privacy o ...

2004

Memory coherence activity prediction in commercial workloads

Anastasia Ailamaki, Babak Falsafi

Recent research indicates that prediction-based coherence optimizations offer substantial performance improvements for scientific applications in distributed shared memory multiprocessors. Important commercial applications also show sensitivity to coherenc ...

2004

Reconfigurable Coprocessor for Media Streaming

Sébastien Bilavarn

The development of more processing demanding video standards on one hand and the popularity of mobile devices such as digital cameras or wireless videophones on the other hand introduce a need of optimization at the processor level. Reconfigurable systems ...

SPIE2004

Image security and processing in the JPEG 2000 compressed domain

Raphaël Grosbois

Digital images are becoming increasingly successful thanks to the development and the facilitated access to systems permitting their generation (i.e. camera, scanner, imaging software, etc). A digital image basically corresponds to a 2D discrete set of reg ...

EPFL2003