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 20 of 394 for “"Iris"”.
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Claiming Iris
Iris Fitzgerald struggles to make it day to day after she is raped and stabbed while out on an early morning run. Her story is told through her relationships, not only with her new, scared self, but also with her overbearing mother, her best friend, her rescuer and her antagonistic roommate. She …
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Iris imaging for health diagnostics
… a doctor. In this thesis, we explore the use of iris imaging as a medical diagnostic tool. We implement a system in which images captured using a mobile device can be uploaded to and analyzed by a central server. With this platform, we hope to build a large database of standard iris images with …
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IRIS: Intelligent Roadway Image Segmentation
… across the entire image. This algorithm, named IRIS, was developed and tested on several sets of roadway images. The algorithm was tested for its accuracy and speed, and was found to be better than 86% accurate across all data sets for an optimal choice of algorithm parameters. IRIS was also …
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Analysis and synthesis of iris images
… body that help in personal identification, the iris is probably the most robust and accurate. Although numerous iris recognition algorithms have been proposed, the underlying processes that define the texture of irises have not been extensively studied. In this thesis, multiple pair-wise pixel …
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Human iris categorization using artificial neural networks
… a very difficult process, especially for human iris images. Previous researchers have been working on predicting ethnicity from texture features of iris images using other methods. This thesis is one of the the first to present a solution of iris image categorization using artificial neural …
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Iris Murdoch and the Art of Imagination
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Lentes intraoculares fáquicas de apoyo en iris
Con el fin de determinar y establecer la fuerza de asociación de los factores de riesgo que influyen en la pérdida endotelial corneal luego de la implantación del lente fáquico de fijación iridiana (ARTISAN) en un seguimiento a mediano plazo (promedio de 8,1 años para ojos con defectos miópicos y …
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Iris Biometric Identification Using Artificial Neural Networks
… than passwords. This thesis examines the iris as a personal identifier with the use of neural networks as the classifier. A comparison of different feature extraction methods that include the Fourier transform, discrete cosine transform, the eigen analysis method, and the wavelet …
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Using synthetic images to improve iris biometric performance
… automatically track the identity of individuals. Iris biometrics has emerged as one of the most reliable and accurate systems when dealing with cooperating subjects, however, challenges arise when attempting to minimize the amount of intrusion when examining subjects. Allowing for more flexibility …
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Iris categorization using texton representation and symbolic features
… increasingly commonly used characteristic is the iris section of the eye, which is valued for its uniqueness among individuals and stability over time. One key concern with iris recognition systems is the time required to find a test sample's match in a database of subjects. This work considers …
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Narrative techniques in the novels of Iris Murdoch
In this thesis I have departed from the prevalent critical concentration on the affiliations between Murdoch's fiction and philosophy, and have attempted to explore the relationship between her narrative techniques and the conventions of realism. In doing so, I use the narrative theory of Dorrit …
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Biomicroscopia de los vasos normales en el iris claro
… La fácil visualización de los vasos del iris normal, en ojos no pigmentados por medio de la biomicroscopía ordinaria. Hemos estudiado cien ojos normales escasamente pigmentados y hemos localizado, contado y dibujado en esquema, aquellos vasos cuya corriente sanguínea es visible …
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Differential proteomic profiling towards elucidation of TB-IRIS pathogenesis
… immune reconstitution inflammatory syndrome (TB-IRIS) after addition of antiretroviral (ARV) therapy to anti-tuberculous therapy (ATT). The course can be prolonged and the average mortality rate is 2% (75% for TB-IRIS involving the central nervous system (CNS)). Immune elements – including …
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Analysis of Near-Infrared Phase Effects on Biometric Iris Data
… of this research is to ascertain potential iris scan data variations from near infrared waves derived from fluorescent illumination. Prior studies of iris data variances from infrared wave interference of halogen, incandescent, and sunlight with iris cameras suggest that similar changes may …
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Performance analysis of iris based recognition system at the matching score level
Over the past three years, iris based personal identification has gained considerable attention both from research groups and government organizations. Public acceptance of this biometric grew substantially too. Modern cameras used for iris acquisition are less intrusive compared to earlier iris …
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