This paper presents a method for fitting constrained models in multiple aerial images for building reconstruction applications. Compared to previous works, geometrical constraints are automatically inferred and enforced on the initial approximate model of building and the final constrained model is inherently compliant with the detected constraints through an implicit parameterization. Fitting ...

In this paper, we present an efficient lane detection and tracking algorithm for wide-baseline stereo vision systems with cameras mounted on the host vehicle. The main purposes of the vision system are host vehicle localization and lane shape recognition for advanced driver assistance tasks on highways and country roads with visible lane boundary markings. This is achieved via the 3D geometrica...

We studied the angular resolution of the Pierre Auger Detector using data collected from January 2004 to May 2005. The detector consists of two independent components, the fluorescence detector and the surface detector. Hybrid events, observed simultaneously by both components, have smaller reconstruction uncertainties than the events observed with only one component. The hybrid resolution is e...

Large vulnerable openings in human cranium require a rigid anatomical reconstruction. A possible solution is the use of personalised thin titanium plates, also denoted membranes. The indirect production process, which is mainly hydroforming or casting, requires a single die, which is shaped manually or milled directly from a CAD-file. Currently, the design of membranes is mainly manual work, ev...

Archeological acoustics is a part of acoustics that studies ancient environments which were dedicated (completely or partly) to sound performing. The combination of this acoustic area in conjunction with room acoustics enables the study of the acoustic evolution of existing buildings (in terms of the historical documentation) or even, make the acoustic reconstruction of rooms which were destroy...

Plant leaves grow and change their orientation as well their emission of chlorophyll fluorescence in time. All these dynamic plant properties can be semi-automatically monitored by a 3D imaging system that generates plant models by the method of coded light illumination, fluorescence imaging and computer 3D reconstruction. Here, we describe the essentials of the method, as well as the system ha...

We have used Monte Carlo simulations to investigate the capabilities of a giant air shower observatory designed to detect showers initiated by cosmic rays with energies exceeding 10 19 eV. The observatory is to consist of an array of detectors that will characterise the air shower at ground level, and optical detectors to measure the uorescence light emitted by the shower in the atmosphere. Usi...

This paper proposes polycentric panoramas as a general model of panoramic images. The model formalizes essential characteristics of panoramic geometry. It is able to describe a wide range of panoramic images, including those potentially of future interest, or previously introduced such as single-center, multi-perspective, or concentric panoramas [1, 5, 13, 16]. This paper presents geometrical f...

In this paper, we investigate two stochastic perturbations of the metamorphosis equations of image analysis, in the geometrical context of the EulerPoincaré theory. In the metamorphosis of images, the Lie group of diffeomorphisms deforms a template image that is undergoing its own internal dynamics as it deforms. This type of deformation allows more freedom for image matching and has analogies ...

In this paper a system for doing automatic structure and motion estimation given an image sequence taken by a hand-held camera is presented. The main contribution is the ability to stitch together partial reconstructions, specifically in the case of a closed loop motion. One key feature of the system is the possibility to incorporate simple geometrical constraints on the scene in the present ca...