Dr. Mary E. Kappus Profile

Dr. Mary E. Kappus

at Observera Inc

SPIE Involvement:

Author

Publications (7)

Proceedings Article | 28 December 1999 Paper

Naval EarthMap Observer: overview and data processing

Jeffrey Bowles, Curtiss Davis, Megan Carney, Dean Clamons, Bo-Cai Gao, David Gillis, Mary Kappus, G. Lamela, Marcos Montes, Peter Palmadesso, J. Rhea, William Snyder

Proceedings Volume 3870, (1999) https://doi.org/10.1117/12.373185

KEYWORDS: Calibration, Spectroscopy, Satellites, Data processing, Space operations, Ocean optics, Sensors, Image processing, Short wave infrared radiation

Read Abstract +

Proceedings Article | 27 October 1999 Paper

Calibration, characterization, and first results with the Ocean PHILLS hyperspectral imager

Curtiss Davis, Mary Kappus, Jeffrey Bowles, John Fisher, John Antoniades, Megan Carney

Proceedings Volume 3753, (1999) https://doi.org/10.1117/12.366279

KEYWORDS: Calibration, Spectrographs, Cameras, Imaging systems, Hyperspectral imaging, Distortion, Sensors, Water, Spectral calibration, Remote sensing

Read Abstract +

Proceedings Article | 18 November 1998 Paper

Naval EarthMap Observer (NEMO) science and naval products

Curtiss Davis, Mary Kappus, Bo-Cai Gao, W. Paul Bissett, William Snyder

Proceedings Volume 3437, (1998) https://doi.org/10.1117/12.331329

KEYWORDS: Data modeling, Calibration, Algorithm development, Atmospheric corrections, Coastal modeling, Space operations, Commercial off the shelf technology, Reflectivity, Atmospheric modeling, Imaging systems

Read Abstract +

Proceedings Article | 16 October 1998 Paper

Bathymetry from fusion of airborne hyperspectral and laser data

Mary Kappus, Curtiss Davis, W. Joseph Rhea

Proceedings Volume 3438, (1998) https://doi.org/10.1117/12.328121

KEYWORDS: Reflectivity, Water, Data fusion, Airborne laser technology, Solids, Pulsed laser operation, Signal attenuation, Optical simulations, Control systems, Hyperspectral imaging

Read Abstract +

Proceedings Article | 13 November 1996 Paper

HYDICE data from Lake Tahoe: comparison to coincident AVIRIS and in-situ measurements

Mary Kappus, Curtiss Davis, W. Rhea

Proceedings Volume 2819, (1996) https://doi.org/10.1117/12.258088

KEYWORDS: Sensors, Water, Radiative transfer, Atmospheric particles, Reflectivity, Atmospheric corrections, Sun, Remote sensing, Calibration, Spectrometers

Read Abstract +

Coordinated flights of two calibrated airborne imaging spectrometers, HYDICE and AVIRIS, were conducted on June 22, 1995 over Lake Tahoe. As part of HYDICE's first operational mission, one objective was to test the system performance over the dark homogeneous target provided by the clear deep waters of the lake. The high altitude and clear atmosphere makes Lake Tahoe a simpler test target than near-shore marine environments, where large aerosols complicate atmospheric correction and sediment runoff and high chlorophyll levels make interpretation of he data difficult. Calibrated data from both runoff and high chlorophyll levels make interpretation of the data difficult. Calibrated data from both sensors was provided in physical units of radiance. The atmospheric radiative transfer code, MODTRAN was used to remove the path radiance between the ground and sensor and the skylight reflected from the water surface. The resulting water-leaving spectrometer, and with values calculated form in-water properties using the HYDROLIGHT radiative transfer code. The agreement of the water-leaving radiance for the HYDICE data, the ground-truth spectral measurements, and the results of the radiative transfer code are excellent for wavelengths greater than 0.45 micrometers . The AVIRIS flight took place more than an hour closer to noon, which makes the radiance measurements not directly comparable. Comparisons to radiative transfer output for this later time indicate that the AVIRIS data is strongly by sun glint. Because water-leaving radiance is dependent upon the characteristics of the water, it can be analyzed for some of those properties. Using the CZCS algorithm based on the water-leaving radiance at two wavelengths, the chlorophyll content of Lake Tahoe was computed from the HYDICE and ground-truth data. Resulting values are slightly higher than measurements made two weeks earlier from water samples, indicating a growth in the phytoplankton population which is very plausible given the intervening atmospheric conditions. The success in determining water-leaving radiance and interpreting it for pigment concentration are very positive results for this early HYDICE flight. The interpretations made so far do not make use of the full spectral content of the data, so much room for advancement remains.

Proceedings Article | 6 November 1996 Paper

Constrained energy minimization applied to apparent reflectance and single-scattering albedo spectra: a comparison

Ronald Resmini, William Graver, Mary Kappus, Mark Anderson

Proceedings Volume 2821, (1996) https://doi.org/10.1117/12.257168

KEYWORDS: Autoregressive models, Reflectivity, Minerals, Sensors, Data conversion, Hyperspectral imaging, Spectroscopy, Image processing, Calibration, Image analysis

Read Abstract +

Proceedings Article | 17 June 1996 Paper

HYDICE postflight data processing

William Aldrich, Mary Kappus, Ronald Resmini, Peter Mitchell

Proceedings Volume 2758, (1996) https://doi.org/10.1117/12.243230

KEYWORDS: Sensors, Calibration, Data conversion, Data processing, Spectral calibration, Data centers, Detector arrays, Data acquisition, Staring arrays, Signal to noise ratio

Read Abstract +

Showing 5 of 7 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years