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University of Memphis

Electronic Theses and Dissertations

2013

Compression

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Development Of A Method For The Measurement And Analyses Of The Micro-Scale Mechanical Response Of The Growth Plate With Fluorescent Microscopy, Thien-Chuong Nguyen Phung Apr 2013

Development Of A Method For The Measurement And Analyses Of The Micro-Scale Mechanical Response Of The Growth Plate With Fluorescent Microscopy, Thien-Chuong Nguyen Phung

Electronic Theses and Dissertations

The growth plate is a layer of hyaline cartilage between the epiphysis and diaphysis of long bones and is responsible for the longitudinal growth of bone. Like the remodeling of mature bones, bone growth is influenced by its surrounding environment, but the underlying mechanisms of this process are less understood, although there appears to be a link between mechanical loading and bone growth. For example, the Hueter-Volkmann law states that growth rate decreases due to excessive compressive loading. Multiple mechanisms have been proposed to lead to growth retardation in the case of excessive compression such as vascular obstruction, alterations in …


An Adaptive Optimal Bandwidth Sensor For Video Imaging And Sparsifying Basis, Imama Noor Apr 2013

An Adaptive Optimal Bandwidth Sensor For Video Imaging And Sparsifying Basis, Imama Noor

Electronic Theses and Dissertations

Many compressive sensing architectures have shown promise towards reducingthe bandwidth for image acquisition significantly. In order to use these architectures for video acquisition we need a scheme that is able to effectively exploit temporal redundancies in a sequence. In this thesis we study a method to efficiently sample and reconstruct specific video sequences. The method is suitable for implementation using a single pixel detector along with a digital micromirror device (DMD) or other forms of spatial light modulators (SLMs). Conventional implementations of single pixel cameras are able to spatially compress the signal but the compressed measurements make it difficult to …