The most challenging algorithmical task for markerless Augmented Reality applications is the robust estimation of the camera pose. With a given 3D model of a scene the camera pose can be estimated via model-based camera tracking without the need to manipulate the scene with fiducial markers. Up to now, the bottleneck of model-based camera tracking is the availability of such a 3D model. Recentl...

Mass spectrometers such as SELDI-TOF (surface enhanced laser desorption/ionization time-of-flight) and MALDI-TOF (matrix assisted laser desorption and ionization time-of-flight) measure the relative abundance of different protein ions or protein fragments (peptides) indexed by the mass-to-charge ratio (m/z). A special characteristic of the MS spectra is its variabilities in both m/z values and ...

Aspheric optical surfaces are becoming common in optical design. Fabrication efforts have improved, costs have reduced, and aspheres allow a designer to control more degrees of freedom using fewer surfaces. However, testing and alignment of aspheric surfaces is considerably more difficult than that of spherical surfaces. Testing requires expensive null lenses, and alignment requires numerous da...

With the growing adoption of automatic systems for aligning the geometry of large multi-projector displays in venues such as flight or ship bridge simulators, it has become possible for even the most complicated visual systems to be realigned regularly to maintain seamless geometric alignment. Despite this ability, for the most part, these alignment systems still require that the system be take...

Beginning in the mid-1980s, the phenomenon of capital flight from developing countries received considerable attention in the economics literature. Capital flight destroys the domestic macroeconomic environment and decreases transparency and accountability. It restricts financial resources when a country is looking for economic growth and development. The purpose of this article is to measure t...

Abstract: In this paper, we consider the coordinated attitude control problem without velocity measurements. Based on the recently introduced unit quaternion output feedback for the attitude tracking of a rigid body, we present a class of decentralized coordinated control laws to solve the alignment problem for a group of spacecraft within a formation without velocity measurements. The approach...

On Earth, gravity and an internal sense of the body vertical help to maintain balance in every situation. This experiment investigated the ability of human subjects to accurately locate their trunk axis while free-floating in microgravity during parabolic flight. In this study we have compared the conditions where the head is aligned with the trunk, with the conditions where the head was tilted...

bioinformatics, through the sequencing of the full genomes for many species, is increasingly relying on efficient global alignment tools exhibiting both high sensitivity and specificity. many computational algorithms have been applied for solving the sequence alignment problem. dynamic programming, statistical methods, approximation and heuristic algorithms are the most common methods applied t...