Camera based localization can provide extremely accurate 3D pose information, even from consumer grade video lenses. Advances in lens distortion correction, pose computation and feature detection would permit low cost cameras to be used in many applications that currently require more expensive equipment. I show how: (1) careful modelling and (2) careful fitting of these models to data; provide...

In this paper the matching behaviour of MOS transistors is analyzed for the realization of an intrinsic– accuracy 14 bit current–steering D/A–converter. It is well known that the area of a MOS transistor is inversely proportional to the mismatch (Pelgrom mismatch model), related through a technology constant. Also the influence of metal coverage on the mismatch of MOS transistors has been repor...

Bioimpedance measurements are an important tool in biomedical engineering and life sciences. Bioimpedance describes the response of living tissue to an applied electrical current and allows therefore conclusions about the condition and composition of the investigated tissue. This work describes the design and development of a high accuracy Bioimpedance Measurement System (BMS), which is able to...

Multirevolution, very low-thrust trajectory optimization problems have long been considered difficult problems due to their large time scales and high-frequency responses. By relating this difficulty to the well-known problem of aliasing in information theory, an antialiasing trajectory optimization method is developed. The method is based on Bellman’s principle of optimality and is extremely s...

We prove that the Jacobi algorithm applied implicitly on a decomposition A = XDXT of the symmetric matrix A, where D is diagonal, and X is well conditioned, computes all eigenvalues of A to high relative accuracy. The relative error in every eigenvalue is bounded by O(εκ(X)), where ε is the machine precision and κ(X) ≡ ‖X‖2 · ‖X−1‖2 is the spectral condition number of X . The eigenvectors are a...

This paper considers point and interval estimation of the lq loss of an estimator in high-dimensional linear regression with random design. We establish the minimax rate for estimating the lq loss and the minimax expected length of confidence intervals for the lq loss of rate-optimal estimators of the regression vector, including commonly used estimators such as Lasso, scaled Lasso, square-root...

Mass spectrometry for fundamental studies in metrology and atomic, nuclear and particle physics requires extreme sensitivity and efficiency as well as ultimate resolving power and accuracy. An overview will be given on the global status of high-accuracy mass spectrometry for fundamental physics and metrology. Three quite different examples of modern mass spectrometric experiments in physics are...

High-accuracy schemes have been proposed here to solve computational acoustics 4 and DNS problems. This is made possible for spatial discretization by optimizing 5 explicit and compact differencing procedures that minimize numerical error in the 6 spectral plane. While zero-diffusion nine point explicit scheme has been proposed 7 for the interior, additional highaccuracyone-sided stencils have ...

Apparatus and techniques are demonstrated which allow gas phase dc electro-optic Kerr effect measurements to be made with 0.1% absolute accuracy and nanoradian sensitivity. Measurements of the electric-field-induced birefringence of a gas are calibrated against a liquid Kerr cell, which is in turn calibrated absolutely in situ. Some of the problems addressed in this work are control of stray bi...

Our main research focus this year was on the use of multi-word units (MWU) in query expansion. MWUs comprise a number of lexical units, such as named entities (“United Nations”), nominal compounds (“amusement park”), etc. Although MWUs can belong to different parts of speech, our focus was on nominal MWUs. We used a combined syntactico-statistical approach for selecting nominal MWUs. In the fir...