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Publications associées (34)

Dalton: Learned Partitioning for Distributed Data Streams

Anastasia Ailamaki, Eleni Zapridou, Ioannis Mytilinis

To sustain the input rate of high-throughput streams, modern stream processing systems rely on parallel execution. However, skewed data yield imbalanced load assignments and create stragglers that hinder scalability. Deciding on a static partitioning for a ...

2022

A Miniaturized Insect Eye Inspired Multi-camera Real-time Panoramic Imaging System

Ömer Cogal

During the last 50 years miniaturization became a key element in human history, since it opens doors for manufacturing new devices that enhances the quality of human life. Camera and imaging systems are following this miniaturization trend as well. Meanwhi ...

EPFL2015

A Sub-mW Pulse-Based 5-bit Flash ADC with a Time-Domain Fully-Digital Reference Ladder

Alexandre Schmid, Yusuf Leblebici, Nikola Katic, Radisav Cojbasic

Journal article A sub-mW pulse-based 5-bit flash ADC with a time-domain fully-digital reference ladder: A Katic, Nikola; Cojbasic, Radisav; Schmid, Alexandre; Leblebici, Yusuf Published in: Microelectronics Journal (ISSN: 0026-2692), vol. 46, num. 12, ...

Elsevier2015

Buffer optimization based on critical path analysis of a dataflow program design

Marco Mattavelli, Simone Casale Brunet

The trade-off between throughput and memory constraints is a common design problem in embedded systems, and especially for streaming applications, where the memory in question usually occurs in the form of buffers for streams of data. This paper presents a ...

IEEE2013

Profiling of Dataflow Programs Using Post Mortem Causation Traces

Marco Mattavelli, Simone Casale Brunet

The natural representation of data streams, parallelism, and composition has made dataflow an attractive programming model for expressing a wide range of stream and media processing applications, and has led MPEG and ISO to base their latest video coding s ...

IEEE2012

Rigorous system level modeling and analysis of mixed HW/SW systems

Joseph Sifakis, Kai Huang

A grand challenge in complex embedded systems design is developing methods and tools for modeling and analyzing the behavior of an application software running on multicore or distributed platforms. We propose a rigorous method and a tool chain that allows ...

IEEE2011

THE VISNET II DVC CODEC: ARCHITECTURE, TOOLS AND PERFORMANCE

Touradj Ebrahimi, Frédéric Dufaux

This paper introduces the VISNET II DVC codec. This co-dec achieves very high RD performance thanks to the efficient combination of many state-of-the-art coding tools into a fully practical video codec. Experimental results show that the proposed DVC codec ...

2010

Implementation of an image recognition algorithm on the DM6446 DaVinci Processor

Pierre-André Farine, Sara Grassi Pauletti, Pradyumna Ayyalasomayajula

We are developing an Alternative and Augmentative Communication (AAC) portable device called PictoBar which is used in speech rehabilitation therapy. PictoBar recognizes barcodes and images, such as pictograms and pictures. Then it plays a sound message as ...

2010

An adaptive system for real-time scalable video streaming with end- to-end qos control

Marco Mattavelli, Daniele Renzi, Beilu Shao

This paper presents a real-time adaptive video streaming system based on the latest standardized video codec H.264/MPEG-4 AVC scalable extension (SVC). The system provides a full MPEG-21 media access framework over heterogeneous networks and terminals with ...

2010

Reconfigurable Video Coding — a Stream Programming Approach to the Specification of New Video Coding Standards

Marco Mattavelli

Current video coding standards, and their reference implementations, are architected as large monolithic and sequential algorithms, in spite of the considerable overlap of functionality between standards, and the fact that they are frequently implemented o ...

2010

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