Zobrazeno 1 - 10
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pro vyhledávání: '"Warren E. Smith"'
Publikováno v:
Algorithms for Synthetic Aperture Radar Imagery VIII.
Polarimetric synthetic aperture radar (POLSAR) provides additional information about the scatterers and clutter in a scene over that of single-band SAR. A fully polarimetric sensor contains four imaging channels that, when properly calibrated, can in
Autor:
Warren E. Smith, Daniel P. Filiberti, Andrew M. Horne, Darren G. Muff, Richard Geoffrey White, Paul W. Barnes
Publikováno v:
SPIE Proceedings.
The complex phase history of the synthetic aperture radar (SAR) image can be broken up into a series of overlapping crossrange sub-apertures from which time-dependent information can be extracted from the scatterers that make up the image. The change
Publikováno v:
Algorithms for Synthetic Aperture Radar Imagery VI.
The stability of bright peaks over the complex phase history of synthetic aperture radar (SAR) imagery is examined using a 'sub-aperture imaging' approach. The additional information obtained about the peaks can be applied to the following areas: imp
Autor:
Isaac Sacolick, Warren E. Smith
Publikováno v:
SPIE Proceedings.
The ill-posed problem of reconstructing an animation from a set of motion-corrupted MR images is investigated. A temporal sampling model has been developed which maps each phase-encoded row of a motion-corrupted MR image to particular frames of an an
Autor:
Andrew W. Kulawiec, Warren E. Smith
Publikováno v:
Optical Society of America Annual Meeting.
Cell biologists have long known that the transmission Nomarski microscope is extremely useful in imaging complex phase objects. Its ability to reveal minute variations in optical phase allows the imaging of unstained, transparent objects. It also has
Publikováno v:
Optical Society of America Annual Meeting.
Motion artifacts arise in magnetic resonance (MR) imaging when the patient moves (e.g., respiratory, cardiac, involuntary) during data acquisition. These artifacts give rise to “ghosts” in the reconstructed image, which typically manifest themsel
Publikováno v:
Optical Fabrication and Testing Workshop.
The processes of cutting, grinding and polishing optical materials cause fractures that extend some depth below the surface. The unrelieved strain and deep cracks present below the surface can seriously affect the performance of an optical system, es
Publikováno v:
Optical Society of America Annual Meeting.
Problems exist in characterizing high-frequency disordering in semiconductor microstructures, such as those used in quantum-well lasers. Global quantities, such as quantum efficiency and spectral characteristics averaged over the entire sample, are u
Autor:
Warren E. Smith, Seth A. Maislin
Publikováno v:
Optical Society of America Annual Meeting.
Chromosome damage is produced by several types of agents, including ionizing radiation. There is a need for rapid measurement of such damage in the event of an accident to assist in the determination of the extent of exposure and the planning of cons
Publikováno v:
Journal of the American Chemical Society. 79:4436-4439