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Full-Text Articles in Physics
Characterization Of A Hyperspectral Chromotomographic Imaging Ground System, Chad B. Su'e
Characterization Of A Hyperspectral Chromotomographic Imaging Ground System, Chad B. Su'e
Theses and Dissertations
A field-deployable hyperspectral chromotomographic imager has been developed and tested as a risk-reduction prototype to assist design of a space-based system. The instrument uses a high-speed video camera looking through a rotating direct-vision prism to simultaneously observe the full field of view in all visible wavelength channels. The chromotomographic process multiplexes the spectral and spatial so an advanced reconstruction algorithm is required to separate the spectral channels. A physics-based model of the instrument was developed to assist in future trade-space choices for design of the spaced-based system. Additionally, the model is used for the development and assessment of the filtered …
Design And Model Verification Of An Infrared Chromotomographic Imaging System, Daniel A. Lemaster
Design And Model Verification Of An Infrared Chromotomographic Imaging System, Daniel A. Lemaster
Theses and Dissertations
A prism chromotomographic hyperspectral imaging sensor is being developed to aid in the study of bomb phenomenology. Reliable chromotomographic reconstruction depends on accurate knowledge of the sensor specific point spread function over all wavelengths of interest. The purpose of this research is to generate the required point spread functions using wave optics techniques and a phase screen model of system aberrations. Phase screens are generated using the Richardson-Lucy algorithm for extracting point spread functions and Gerchberg-Saxton algorithm for phase retrieval. These phase screens are verified by comparing the modeled results of a blackbody source with measurements made using a chromotomographic …