Concept

Computer-mediated reality

Publications associées (109)

Design and clinical evaluation of an image-guided surgical microscope with an integrated tracking system

Charles Baur, Gaëtan Marti, Jaime Garcia Giraldez

A new image-guided microscope system using augmented reality image overlays has been developed. With this system, CT cut-views and segmented objects such as tumors that have been previously extracted from preoperative tomographic images can be directly dis ...

2007

Image-guided surgical microscope with mounted minitracker

Gaëtan Marti, Jaime Garcia Giraldez

A new image-guided microscope using augmented reality overlays has been developed. Unlike other systems, the novelty of our design consists in mounting a precise mini and low-cost tracker directly on the microscope to track the motion of the surgical tools ...

2007

Camera Tracking using natural feature point matching for Augmented Reality

Touradj Ebrahimi, Cecilia Torralbo Gimeno

For augmented reality applications, accurate estimation of the camera pose is required. An existing video-based marker tracking system developed at the ITS presents some limitations when the marker is completely or partially occluded. The objective of this ...

2007

Advances in top-down and bottom-up approaches to video-based camera tracking

David Marimon Sanjuan

Video-based camera tracking consists in trailing the three dimensional pose followed by a mobile camera using video as sole input. In order to estimate the pose of a camera with respect to a real scene, one or more three dimensional references are needed. ...

EPFL2007

Finite-element modelling of YBCO fault current limiter with temperature dependent parameters

Francesco Grilli, Joseph Duron, Bertrand Dutoit

In this paper we present a numerical model in which both the thermal and the electromagnetic aspects of the over-critical current regime of HTS materials are taken into account. The electromagnetic and thermal equations have been implemented in finite elem ...

2007

The Cost of Reality: Effects of Real-World Factors on Multi-Robot Search

Alcherio Martinoli, James Pugh

Designing algorithms for multi-robot systems can be a complex and difficult process: the cost of such systems can be very high, collecting experimental data can be time consuming, and individual robots may malfunction, invalidating experiments. These const ...

2007

A Stochastic Model for Video and its Information Rates

Martin Vetterli, Minh Do

We propose a stochastic model for video and compute its information rates. The model has two sources of information representing ensembles of camera motion and visual scene data (i.e. "realities"). The sources of information are combined generating a vecto ...

2007

Wearable Mixed Reality System In Less Than 1 Pound

Daniel Thalmann, Frédéric Vexo, Achille Peternier

We have designed a wearable Mixed Reality (MR) framework which allows to real-time render game-like 3D scenes on see-through head-mounted displays (see through HMDs) and to localize the user position within aknown internet wireless area. Our equipment weig ...

2006

Getting Real with Ubiquitous Computing: the Impact of Discrepancies on Collaboration

Nicolas Nova

Ubiquitous computing is still a maturing field of investigation. The vision of the seamless integration of computers to people’s life has yet to happen, if it ever has to become a reality. Nowadays, most mobile, distributed systems and sensor technologies ...

2006

An all-in-one solution to geometric and photometric calibration

Pascal Fua, Vincent Lepetit, Julien Pilet, Pascal Lagger, Andreas Geiger

We propose a fully automated approach to calibrating multiple cameras whose fields of view may not all overlap. Our technique only requires waving an arbitrary textured planar pattern in front of the cameras, which is the only manual intervention that is r ...

2006

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