Global ETD Search
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Showing 1 to 4 of 4 for “"system point spread function"”.
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Quantification and Reconstruction in Photoacoustic Tomography
… accelerate the data acquisition and reduce the system cost. We adapted Compressed Sensing: CS) for the reconstruction in PACT. CS-based PACT was implemented as a non-linear conjugate gradient descent algorithm and tested with both phantom and in vivo experiments. Speckles have been considered …
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Point Spread Function Reconstruction for the Adaptive Optics System ALFA and its Application to Photometry
The ALFA adaptive optics (AO) system, operated by the Max-Planck-Institut für Astronomie at the Calar Alto Observatory, has been available as a standard facility instrument for some years now. As with other AO systems, however, the scientific use of observations with this instrument is complicated …
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Biophysical Considerations in the Precision of Quantitative <sup>18</sup>F-FDG PET/CT
… Tomography is increasingly being used as a functional marker of disease states, both adequate image quality and robust quantification are critical components of such imaging studies. A variety of both biological and physical factors affect these qualities in significant ways. As PET …
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Channel Probing for an Indoor Wireless Communications Channel
… three of these parameters for a 7 GHz channel. A system was built to measure these multipath parameters at 2.4 GHz for multiple locations in an indoor environment. Another system was built to measure the angle of transmission for a 6 GHz channel. The addition of this parameter allows spatial …