Results 21 to 30 of about 5,611 (211)
Effect of surface BRDF of various land cover types on geostationary observations of tropospheric NO2 [PDF]
Atmospheric Measurement Techniques, 2014 We investigated the effect of surface reflectance anisotropy, bidirectional reflectance distribution function (BRDF), on satellite retrievals of tropospheric NO2.
K. Noguchi +6 more
doaj +1 more source
Importance Sampling BRDF Derivatives [PDF]
, 2023 We propose a set of techniques to efficiently importance sample the derivatives of several BRDF models. In differentiable rendering, BRDFs are replaced by their differential BRDF counterparts which are real-valued and can have negative values. This leads
Li, Tzu-Mao +4 more
core +1 more source
Estimating Forest Canopy Height Using MODIS BRDF Data Emphasizing Typical-Angle Reflectances
Remote Sensing, 2019 Forest-canopy height is an important parameter for the estimation of forest biomass and terrestrial carbon flux and climate-change research at regional and global scales.
Lei Cui +9 more
doaj +1 more source
Remote Sensing, 2017 Optical wavelength satellite data have directional reflectance effects over non-Lambertian surfaces, described by the bidirectional reflectance distribution function (BRDF).
David P. Roy +2 more
doaj +1 more source
BRDF LABORATORY MEASUREMENTS USING A CAMERA-AIDED SPECTRORADIOMETER [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Numerous natural surfaces observed using Remote Sensing do not reflect light as Lambertian surfaces. Instead, their reflection is highly dependent on two main directions: the direction of the light source and the observation viewing angle, which ...
E. Roitberg +3 more
doaj +1 more source
BRDF of human skin in the visible spectrum [PDF]
, 2017 © Emerald Publishing Limited. Purpose - Significant research has been carried out in terms of development of new bidirectional reflectance distribution function (BRDF) instruments; however, there is still little research available regarding spectral BRDF
Smith, Lyndon +7 more
core +1 more source
Remote Sensing, 2019 Satellite-derived vegetation indices (VIs) have been widely used to approximate or estimate gross primary productivity (GPP). However, it remains unclear how the VI-GPP relationship varies with indices, biomes, timescales, and the bidirectional ...
Xiaojuan Huang +2 more
doaj +1 more source
Remote Sensing, 2020 Airborne hyper-spectral imaging has been proven to be an efficient means to provide new insights for the retrieval of biophysical variables. However, quantitative estimates of unbiased information derived from airborne hyperspectral measurements ...
Wen Jia +5 more
doaj +1 more source
Remote Sensing, 2018 Rugged terrain, including mountains, hills, and some high lands are typical land surfaces around the world. As a physical parameter for characterizing the anisotropic reflectance of the land surface, the importance of the bidirectional reflectance ...
Jianguang Wen +7 more
doaj +1 more source
An Empirical Assessment of Angular Dependency for RedEdge-M in Sloped Terrain Viticulture
Remote Sensing, 2019 For grape canopy pixels captured by an unmanned aerial vehicle (UAV) tilt-mounted RedEdge-M multispectral sensor in a sloped vineyard, an in situ Walthall model can be established with purely image-based methods.
Chizhang Gong +3 more
doaj +1 more source