Results 211 to 220 of about 48,460 (263)
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Radiometric Calibration by Rank Minimization
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2013We present a robust radiometric calibration framework that capitalizes on the transform invariant low-rank structure in the various types of observations, such as sensor irradiances recorded from a static scene with different exposure times, or linear structure of irradiance color mixtures around edges.
Lee JY +4 more
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PALSAR Radiometric and Geometric Calibration
IEEE Transactions on Geoscience and Remote Sensing, 2009This paper summarizes the results obtained from geometric and radiometric calibrations of the Phased-Array L-Band Synthetic Aperture Radar (PALSAR) on the Advanced Land Observing Satellite, which has been in space for three years. All of the imaging modes of the PALSAR, i.e., single, dual, and full polarimetric strip modes and scanning synthetic ...
M. Shimada +3 more
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Self-Calibrating Polarising Radiometric Calibration
2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2018We present a self-calibrating polarising radiometric calibration method. From a set of images taken from a single viewpoint under different unknown polarising angles, we recover the inverse camera response function and the polarising angles relative to the first angle.
Daniel Teo Guangwei +3 more
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Radiometric-Waveguide Calibrators
IEEE Transactions on Instrumentation and Measurement, 2007We describe the electromagnetic and thermal design, performance, and fabrication for two types of radiometric- waveguide load calibrators. A simple theory is presented and used to minimize the total volume of the absorber structure. These devices have been used from room temperature to below 4 K in microwave to millimeter wavebands.
E. J. Wollack +5 more
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Proceedings. 1999 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (Cat. No PR00149), 2003
A simple algorithm is described that computes the radiometric response function of an imaging system, from images of an arbitrary scene taken using different exposures. The exposure is varied by changing either the aperture setting or the shutter speed. The algorithm does not require precise estimates of the exposures used.
T. Mitsunaga, S.K. Nayar
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A simple algorithm is described that computes the radiometric response function of an imaging system, from images of an arbitrary scene taken using different exposures. The exposure is varied by changing either the aperture setting or the shutter speed. The algorithm does not require precise estimates of the exposures used.
T. Mitsunaga, S.K. Nayar
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Radiometric calibration of MERIS
SPIE Proceedings, 2004Envisat is ESA's environmental research satellite launched on 1 March 2002. It carries a suit of sensors offering opportunities for a broad range of scientific research and applications. The radiometric calibration results from the first 2 years of operation of the MEdium Resolution Imaging Spectrometer (MERIS) will be presented.
Steven Delwart, Ludovic Bourg
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Hawkeye radiometric calibration methodology
Earth Observing Systems XXIII, 2018Hawkeye is an ocean color instrument designed, manufactured and characterized at Cloud land Instruments, CA. It is a push broom instrument that has 8spectral bands similar to SeaWiFS and a spatial resolution of 120 m. Each spectral band has 1800 detectors (pixels) and all 14,000 detectors (pixels) need to be calibrated independently.
Frederick S. Patt +4 more
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Radiometric Linearity Calibration
SPIE Proceedings, 1985Two causes of nonlinearity are identified in cryogenic radiometric and interferometer systems: (1) multiple time constant response in doped germanium and silicon detectors, and (2) voltage sensitive thick-film resistors used as detector load or transirnpedance feedback resistors. Experimental methods used to evaluated the nonlinear coefficients include
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