Results 61 to 70 of about 1,253 (181)

BTF Modelling Using BRDF Texels [PDF]

International Journal of Computer Mathematics, 2006
The highest fidelity representations of realistic real-world materials currently comprise Bidirectional Texture Functions (BTF).
Jirí Filip, Michal Haindl
openaire   +1 more source

Using Landsat Satellite Imagery to Investigate Spatial and Temporal Variation in Life History Traits in a Long‐Term Study Population of Superb Fairy‐Wrens Malurus cyaneus

Ecology and Evolution, Volume 16, Issue 6, June 2026.
We used 27 years of data from an insectivorous passerine in southeastern Australia, the superb fairy‐wren Malurus cyaneus, to assess how climate variation influences vegetation productivity and, indirectly, reproduction and survival via potential trophic interactions.
Richard S. Turner, Ophélie J. D. Lasne, Lei Lv, Helen L. Osmond, Andrew Cockburn, Loeske E. B. Kruuk, Kara N. Youngentob   +6 more
wiley   +1 more source

Using phenology to improve invasive plant detection in fine‐scale hyperspectral drone‐based images

Remote Sensing in Ecology and Conservation, Volume 12, Issue 3, Page 462-478, June 2026.
Using drone‐based hyperspectral images of mixed temperate successional forests collected over a growing season, detection algorithms were produced for three invasive species of interest, which are not only invasive in Virginia but also much of the U.S.: Ailanthus altissima (tree of heaven), Elaeagnus umbellata (autumn olive), and Rhamnus davurica ...
Kelsey S. Huelsman, Howard E. Epstein, Xi Yang, Roderick Walker   +3 more
wiley   +1 more source

Methodology and Modeling of UAV Push-Broom Hyperspectral BRDF Observation Considering Illumination Correction

Remote Sensing
The Bidirectional Reflectance Distribution Function (BRDF) is a critical spatial distribution parameter in the quantitative research of remote sensing and has a wide range of applications in radiometric correction, elemental inversion, and surface ...
Zhuo Wang, Haiwei Li, Shuang Wang, Liyao Song, Junyu Chen   +4 more
doaj   +1 more source

Spectral‐Resolved Light at Night: TEMPO Observations and Background Correction

Earth and Space Science, Volume 13, Issue 6, June 2026.
Abstract Artificial Light at Night (ALAN) poses risks to public health and ecosystems. While long‐term remote sensing has tracked global nighttime light, spectrally resolved light at night (spectral light at night (SLAN)) data from geostationary orbit only became available with NASA's Tropospheric Emissions: Monitoring of Pollution (TEMPO) mission. Its
Zhixin Xue, Meng Zhou, Jun Wang, Qian Xiao, Jim Carr, Xiong Liu, Heesung Chong, John Houck   +7 more
wiley   +1 more source

A Top‐Down View of Global and Regional Carbon Budgets From an Ensemble of Atmospheric Inversions

Global Biogeochemical Cycles, Volume 40, Issue 6, June 2026.
Abstract Atmospheric inversions provide surface CO2 flux estimates based on in situ observed atmospheric CO2 mole fractions or satellite‐based column average CO2 (XCO2). Here, we provide a detailed assessment of 14 atmospheric CO2 inversions included in the Global Carbon Budget (GCB2024).
A. M. van der Woude, I. T. Luijkx, R. J. de Kok, W. Peters, F. Chevallier, C. Rödenbeck, P. Ciais, N. Chandra, K. Wang, R. Janardanan, H. van Asperen, A. Bastos, A. van den Berg, A. A. Bloom, S. Botía, K. Bowman, J. G. Canadell, R. A. F. de Souza, C. Q. Dias‐Junior, L. Feng, P. Friedlingstein, L. V. Gatti, E. Gloor, K. Ishijima, F. Jiang, Z. Jin, W. Ju, X. Lan, J. Liu, Z. Liu, T. Machida, S. Maksyutov, A. C. Manning, A. Martinez, G. A. Martins, K. McKain, J. B. Miller, L. Nayagam, Y. Niwa, P. I. Palmer, P. K. Patra, P. A. Pickers, B. Poulter, B. B. Stephens, C. Sweeney, S. Wofsy, Z. Wu, D. Yang, J. Yun, N. Zeng   +49 more
wiley   +1 more source

Mastcam‐Z Spectrophotometric Properties of Materials at the Van Zyl Overlook, Jezero Crater

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract During Sols 63–65 of Mars 2020, Mastcam‐Z multispectral (442–1022 nm) images were acquired at Van Zyl Overlook (VZO), spanning phase angles from ∼0° to 150°, to model photometric parameters for seven surface units. These units included rocks, soils, regolith, and rover tracks near the Jezero landing site.
B. Margara, J. R. Johnson, A. G. Hayes, M. T. Lemmon, W. M. Grundy, J. F. Bell III, M. N. Barrington   +6 more
wiley   +1 more source

Efficient polarimetric BRDF model

Optics Express, 2015
The purpose of the present manuscript is to present a polarimetric bidirectional reflectance distribution function (BRDF) model suitable for hyperspectral and polarimetric signature modelling. The model is based on a further development of a previously published four-parameter model that has been generalized in order to account for different types of ...
Ingmar G E, Renhorn, Tomas, Hallberg, Glenn D, Boreman   +2 more
openaire   +2 more sources

Improving Soil Moisture Retrieval by Combining MODIS BRDF and CYGNSS Data

Journal of Remote Sensing
Soil moisture (SM) retrieval methods based on machine learning from the Cyclone Global Navigation Satellite System (CYGNSS) data primarily rely on Normalized Difference Vegetation Index (NDVI) to characterize vegetation information.
Sizhe Chen, Ziti Jiao, Jing Guo, Zhilong Li, Chenxia Wang, Fangwen Yang, Ge Gao, Zheyou Tan, Xin Dong   +8 more
doaj   +1 more source

Adaptive slices for acquisition of anisotropic BRDF

Computational Visual Media, 2018
BRDF continues to be used as a fundamental tool for representing material appearance in computer graphics. In this paper we present a practical adaptive method for acquisition of anisotropic BRDF, based on sparse adaptive measurement of the complete four-
Radomír Vávra, Jiří Filip
doaj   +1 more source