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Reflection-mode virtual histology using photoacoustic remote sensing microscopy
Photons Plus Ultrasound: Imaging and Sensing 2021, 2021Histopathology remains the gold standard for assessing tissue microanatomy. Presently, specimens are examined with bright-field microscopes that require thin stained sections of tissue specimens. However, this requires extensive tissue processing and long turnaround times.
Benjamin R. Ecclestone +8 more
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Applying narrowband remote-sensing reflectance models to wideband data
Applied Optics, 2009Remote sensing of coastal and inland waters requires sensors to have a high spatial resolution to cover the spatial variation of biogeochemical properties in fine scales. High spatial-resolution sensors, however, are usually equipped with spectral bands that are wide in bandwidth (50 nm or wider).
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Uncertainties in Remote Sensing Reflectance From MODIS-Terra
IEEE Geoscience and Remote Sensing Letters, 2012A validation analysis of remote sensing reflectance (RRS) derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument onboard Terra (MODIS-T) is conducted with field RRS data obtained at three fixed sites equipped with autonomous radiometers in the coastal northern Adriatic Sea and at two locations in the Baltic Sea, and during ...
Melin, Frédéric +2 more
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Reflective objective-based ultraviolet photoacoustic remote sensing virtual histopathology
Optics Letters, 2020Histopathological examination typically involves tissue resection or biopsy, fixation, sectioning, and staining protocols. A non-contact high-resolution photoacoustic remote sensing microscopy system is presented which is capable of depth-resolved imaging of cell nuclei in fixed and fresh tissues without the need for stains or labels.
Nathaniel J. M. Haven +3 more
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Reflectance quantities in optical remote sensing—definitions and case studies
Remote Sensing of Environment, 2006Abstract The remote sensing community puts major efforts into calibration and validation of sensors, measurements, and derived products to quantify and reduce uncertainties. Given recent advances in instrument design, radiometric calibration, atmospheric correction, algorithm development, product development, validation, and delivery, the lack of ...
Schaepman-Strub, G +4 more
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Atmospheric Effects On Remote Sensing Of Surface Reflectance
SPIE Proceedings, 1984This paper reviews the atmospheric effects on remote sensing of surface reflectance. The scattering and absorption of sunlight by atmospheric molecules and aerosols affects the quality of images of the surface remotely sensed from satellites and aircrafts.
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Method to derive ocean absorption coefficients from remote-sensing reflectance
Applied Optics, 1996A method to derive in-water absorption coefficients from total remote-sensing reflectance (ratio of the upwelling radiance to the downwelling irradiance above the surface) analytically is presented. For measurements made in the Gulf of Mexico and Monterey Bay, with concentrations of chlorophyll-a ranging from 0.07 to 50 mg/m(3), comparisons are made ...
Z P, Lee +4 more
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Calculating surface reflection characteristics by optical remote sensing
SPIE Proceedings, 1998A retrieval algorithm for calculating surface bi-directional reflectance from satellite measurements is developed with the matrix operator method. In method is applied in the matrix operator method, which makes the mathematical derivation of the explicit expression simple and straightforward by exactly decoupling the surface reflection term from the ...
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Study on extracting reflectance just beneath water surface from remote sensing reflectance
SPIE Proceedings, 2007One of the bases of remote-sensing on water quality is to analyze reflectance just beneath water surface (0 - deepness). Because reflectance just beneath water surface can not be obtained directly, and remote sensing reflectance which is ratio between water-leaving radiance and total radiance on water surface from sky can be obtained by ...
Tangyou Liu +3 more
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A review of reflectance nomenclature used in remote sensing
Remote Sensing Reviews, 2000Field and laboratory radiometers have long been used to characterize the multiangle reflectance properties of homogeneous surface targets. Within the last few years space‐based multiangle spectroradiometers have been deployed, including the Along‐Track Scanning Radiometer‐2 (ATSR), the Polarization and Directionality of the Earth's Reflectances (POLDER)
John V. Martonchik +2 more
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