We present a highly accurate least-squares (LS) alternative to the theoretically optimal maximum likelihood (ML) estimator for homographies between two images. Unlike ML, our estimator is non-iterative and yields a solution even in the presence of large noise. By rigorous error analysis, we derive a “hyperLS” estimator which is unbiased up to second order noise terms. We also introduce a comput...

In this contribution, we report on the application of a novel, high accuracy, arc characterization method to wall constricted arcs in cylindrical nozzles with low blow pressure. The method makes use of a novel current source that is able to produce nearly arbitrary current shapes. With it, it is possible to derive the stationary and transient arc characteristic independent of each other but wit...

In this contribution we study the calculation of effective coefficients for media with periodic heterogeneities. We use finite element methods of high order which allows to obtain high accuracy with relatively low computational effort. This is shown both theoretically and practically.

A new reflectometer-spectrophotometer has been designed and constructed using state-of-the-art technology to enhance optical properties of materials measurements over the ultraviolet, visible, and near-infrared (UV-Vis-NIR) wavelength range (200 nm to 2500 nm). The instrument, Spectral Tri-function Automated Reference Reflectometer (STARR), is capable of measuring specular and diffuse reflectan...

Let f be a smooth curve in IR d , parametrized by arclength. If a large sample of data points p

AN ULTRA-COMPACT, HIGH-ACCURACY STAR TRACKER. P. H. Sorensen, B. J. Davis, R. J. KlineSchoder, and R. L. Morrison. Creare LLC, 16 Great Hollow Road, Hanover, NH 03755; [email protected]. Creare LLC, 16 Great Hollow Road, Hanover, NH 03755; [email protected]. Creare LLC, 16 Great Hollow Road, Hanover, NH 03755; [email protected]. Distant Focus Corporation, 1715 Ironhorse Drive, Suite 260, Longmont, CO, 8...