Results 11 to 20 of about 3,288,984 (371)

NeRD: Neural Reflectance Decomposition from Image Collections [PDF]

open access: yesIEEE International Conference on Computer Vision, 2020
Decomposing a scene into its shape, reflectance, and illumination is a challenging but important problem in computer vision and graphics. This problem is inherently more challenging when the illumination is not a single light source under laboratory ...
Mark Boss   +5 more
semanticscholar   +1 more source

NeRV: Neural Reflectance and Visibility Fields for Relighting and View Synthesis [PDF]

open access: yesComputer Vision and Pattern Recognition, 2020
We present a method that takes as input a set of images of a scene illuminated by unconstrained known lighting, and produces as output a 3D representation that can be rendered from novel viewpoints under arbitrary lighting conditions.
Pratul P. Srinivasan   +5 more
semanticscholar   +1 more source

Metamaterial Coatings for Broadband Asymmetric Mirrors [PDF]

open access: yes, 2006
We report on design and fabrication of nano-composite metal-dielectric thin film coatings with high reflectance asymmetries. Applying basic dispersion engineering principles to model a broadband and large reflectance asymmetry, we obtain a model ...
A. Chen   +20 more
core   +2 more sources

The Time of Day Is Key to Discriminate Cultivars of Sugarcane upon Imagery Data from Unmanned Aerial Vehicle

open access: yesDrones, 2022
Remote sensing can provide useful imagery data to monitor sugarcane in the field, whether for precision management or high-throughput phenotyping (HTP).
Marcelo Rodrigues Barbosa Júnior   +7 more
doaj   +1 more source

Single-shot layered reflectance separation using a polarized light field camera [PDF]

open access: yes, 2016
We present a novel computational photography technique for single shot separation of diffuse/specular reflectance as well as novel angular domain separation of layered reflectance.
Ghosh, A, Izadi, S, Kim, J
core   +1 more source

Pepper Plants Leaf Spectral Reflectance Changes as a Result of Root Rot Damage

open access: yesRemote Sensing, 2021
Symptoms of root stress are hard to detect using non-invasive tools. This study reveals proof of concept for vegetation indices’ ability, usually used to sense canopy status, to detect root stress, and performance status.
Shahar Weksler   +5 more
doaj   +1 more source

Highly Accurate Determination of Heterogeneously Stacked Van-der-Waals Materials by Optical Microspectroscopy [PDF]

open access: yes, 2020
The composition of Van-der-Waals heterostructures is conclusively determined using a hybrid evaluation scheme of data acquired by optical microspectroscopy. This scheme deploys a parameter set comprising both change in reflectance and wavelength shift of
Fritsch, Birk   +4 more
core   +3 more sources

The Harmonized Landsat and Sentinel-2 surface reflectance data set

open access: yesRemote Sensing of Environment, 2018
The Harmonized Landsat and Sentinel-2 (HLS) project is a NASA initiative aiming to produce a Virtual Constellation (VC) of surface reflectance (SR) data acquired by the Operational Land Imager (OLI) and Multi-Spectral Instrument (MSI) aboard Landsat 8 ...
M. Claverie   +7 more
semanticscholar   +1 more source

Deep Reflectance Maps [PDF]

open access: yes, 2015
Undoing the image formation process and therefore decomposing appearance into its intrinsic properties is a challenging task due to the under-constraint nature of this inverse problem.
Fritz, Mario   +4 more
core   +3 more sources

Calibration of BRDF Based on the Field Goniometer System Using a UAV Multispectral Camera

open access: yesSensors, 2022
The bidirectional reflectance distribution function (BRDF) is important for estimating the physical properties of a surface in remote sensing. In the laboratory, the BRDF can be estimated quickly and accurately using a goniometer, but it is very ...
Minji Kim   +5 more
doaj   +1 more source

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