Concept

Photophone (appareil)

Publications associées (381)

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A mobile mapping system for road data capture via a single camera

Jan Skaloud, Pierre-Yves Gilliéron, Hervé Gontran

The development of road telematics requires the management of continuously growing road databases. Mobile mapping systems can acquire this information, while offering an unbeatable productivity with the combination of navigation and videogrammetry tools. H ...

Taylor & Francis2007

Shoulder function and outcome evaluation after surgery using 3D inertial sensors

Brian Coley

The importance of outcome evaluation of a medical treatment in orthopedics is currently recognized. In shoulder disease, a large variety of evaluation tools is employed to assess the results of the surgery. However, even if the majority of these evaluation ...

EPFL2007

Correcting Confusion Matrices for Phone Recognizers

Modern speech recognition has many ways of quantifying the misrecognitions a speech recognizer makes. The errors in modern speech recognition makes extensive use of the Levenshtein algorithm to find the distance between the labeled target and the recognize ...

IDIAP2007

Automatic Red-Eye Removal based on Sclera and Skin Tone Detection

Patrick Vandewalle, Flavien Volken, Johann Terrier

It is well-known that taking portrait photographs with a built in camera may create a red-eye effect. This effect is caused by the light entering the subject’s eye through the pupil and reflecting from the retina back to the sensor. These red eyes are prob ...

2006

Autonomous multisensor tracking surveillance system

Remo Heimgartner

In the world of video especially in video processing important steps are being taken at this time. Research projects around the world are tackling all kind of tracking problems and segmentation of video images. Others are doing feature extraction, image en ...

EPFL2006

Open-source software-operated CMOS camera for real-time mapping

Jan Skaloud, Hervé Gontran, Nicolas Janvier

Accurate time registration, georeferencing, and instantaneous feature extraction are important challenges for real-time mapping systems. The Geodetic Engineering Laboratory (TOPO) at the EPFL has designed a mobile platform to automatically determine the ge ...

2006

Human body pose detection using Bayesian spatio-temporal templates

Pascal Fua, Vincent Lepetit, Miodrag Dimitrijevic

We present a template-based approach to detecting human silhouettes in a specific walking pose. Our templates consist of short sequences of 2D silhouettes obtained from motion capture data. This lets us incorporate motion information into them and helps di ...

Elsevier2006

Recent Advances in MPEG-7 Cameras

Touradj Ebrahimi

We propose a smart camera which performs video analysis and generates an MPEG-7 compliant stream. By producing a content-based metadata description of the scene, the MPEG-7 camera extends the capabilities of conventional cameras. The metadata is then direc ...

IEEE2006

Onboard Flow Visualization in a Pelton Turbine Bucket

François Avellan, Alexandre Perrig

Flow visualizations using endoscopes in a 21-bucket single-injector reduced scale Pelton turbine are performed for 2 operating points. 2 types of visualizations are performed with a CMOS high-speed camera: (i) an onboard visualization of the flow in the bu ...

International Association For Hydraulic Research2006

Oscar: Small-world overlay for realistic key distributions

Karl Aberer, Anwitaman Datta, Sarunas Girdzijauskas

The research on P2P systems which support skewed key distributions has rapidly advanced in the recent years. Yet, the assumptions on the skews we are dealing with remained pretty simple: most of the existing literature assumes simple monotonous key distrib ...

2006