Blind Deconvolution of Anisoplanatic Images Collected by a Partially Coherent Imaging System

Coherent imaging systems offer unique benefits to system operators in terms of resolving power, range gating, selective illumination and utility for applications where passively illuminated targets have limited emissivity or reflectivity. This research proposes a novel blind deconvolution algorithm that is based on a maximum a posteriori Bayesian estimator constructed upon a physically based statistical model for the intensity of the partially coherent light at the imaging detector. The estimator is initially constructed using a shift-invariant system model, and is later extended to the case of a shift-variant optical system by the addition of a transfer function term that quantifies optical blur for wide fields-of-view and atmospheric conditions. The estimators are evaluated using both synthetically generated imagery, as well as experimentally collected image data from an outdoor optical range. The research is extended to consider the effects of weighted frame averaging for the individual short-exposure frames collected by the imaging system. It was found that binary weighting of ensemble frames significantly increases spatial resolution

Explorations in Suburban High School Design: Unconventional Siting

This thesis proposes a design strategy and solution for a suburban high school prototype sited along commercial highway MD40 in Baltimore County, MD. The goal of the thesis is the design of a comprehensive high school that promotes unconventional site selection; mitigates the highway's urban role as community divider; is endowed with civic dignity; and becomes a fulcrum for strong design in the community.\nThe MD40 site offers unique opportunities. It bears the stigma of being a socio-cultural dividing line as well as a physical barrier. The surrounding region is also a target for large-scale development related to expansion at a nearby military research base. The program is focused on the workforce education needs of the military research base. Science and technology courses appropriate for this focus have been added to the curriculum along side the traditional trade and liberal arts

Pharmacological and other studies

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Weyl corrections to holographic conductivity

For conformal field theories which admit a dual gravitational description in anti-de Sitter space, electrical transport properties, such as conductivity and charge diffusion, are determined by the dynamics of a U(1) gauge field in the bulk and thus obey universality relations at the classical level due to the uniqueness of the Maxwell action. We analyze corrections to these transport parameters due to higher-dimension operators in the bulk action, beyond the leading Maxwell term, of which the most significant involves a coupling to the bulk Weyl tensor. We show that the ensuing corrections to conductivity and the diffusion constant break the universal relation with the U(1) central charge observed at leading order, but are nonetheless subject to interesting bounds associated with causality in the boundary CFT.Comment: 15 pages, v2: references adde