Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Image sharpness"”.
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Preferred levels of image sharpness and their relation to image structure in thermal dye transfer prints
… research were (1) to develop scales of preferred image sharpness for thermal dye transfer prints and (2) to relate these scales to an objective measurement of image quality. Interval scales were developed using two different indirect scaling techniques, paired comparison and rank ordering, for …
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Information extraction algorithms based on optical coherence tomography data
… Synthetic Aperture Microscopy algorithm uses image sharpness metrics to automatically search for the optimal parameters for each step of the processing, resulting in near-optimal reconstruction comparable to images manually tuned by experts. The filtering algorithm for Doppler OCT images …
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Design and development of a 3D X-ray microscope
… the system exceeded 5 [mu]m, while maintaining image sharpness and clarity. Digital image reconstruction techniques, based on the inverse Radon transformation and the Fourier slice theorem were used to regenerate conventional CT images as well as contrast volumetric 3D images of the internal …
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De-noising of Real-time Dynamic Magnetic Resonance Images by the Combined Application of Karhunen-Loeve Transform (KLT) and Wavelet Filtering
… to de-noise dynamic cardiac magnetic resonance images that simultaneously takes advantage of the intrinsic spatial and temporal redundancies of real-time cardiac cine. This new image filtering technique combines two well-established methods: temporal Karhunen-Loeve transform (KLT) and spatial …
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Optimising light-sheet microscopy for high resolution live imaging of the early development of chick embryos
… by incorporation of an Optosplit spectral image splitter. This allowed the analysis of two fluorophores in the sample, showing for instance the action and role of two specific proteins or a specific protein and a labelled structure such as the cell membrane, simultaneously.<br/><br/>Further …
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Electron beam lithography of molecular glass resist films prepared by physical vapor deposition
… electron beam. These deflections lead to reduced image sharpness in the imaging mode of the scanning electron microscope. They also have an impact on the obtained features written by the lithographic exposure process and result in the formation of periodic defects by utilizing a very sensitive …