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Enhanced gap fraction extraction from hemispherical photography
(Institute of Electrical and Electronics Engineers, 2015-03)
Canopy structure can be estimated using gap fraction (GF) data, which can be directly measured with hemispherical photography. However, GF data accuracy is affected by sunlit canopy, multiple scattering, vignetting, blooming, ...
Estimacion del indice de area foliar a traves de fotografia hemisferica y deshoje manual en manzanos y cerezosEstimation of leaf area index through hemispherical photography and leaf collection in apple and cherry trees
(Universidad de Talca (Chile). Facultad de Ciencias Agrarias, 2005)
Estimating canopy fuel load with hemispherical photographs: A rapid method for opportunistic fuel documentation with smartphones
(British Ecological Society, 2021-08)
Canopy fuel load (CFL) affects wildfire intensity and is a critical input for fire behaviour models; however, measuring CFL in the field is time-consuming and costly. Until recently, hemispherical photographs have been ...
An improved estimate of leaf area index based on the histogram analysis of hemispherical photographs
(ELSEVIER SCIENCE BV, 2009)
Leaf area index (LAI) is a key parameter that affects the surface fluxes of energy, mass, and momentum over vegetated lands, but observational measurements are scarce, especially in remote areas with complex canopy structure. ...
Introducción a la fotografía hemisférica en ciencias forestalesIntroduction to hemispherical photography in forestry
(Inst Ecologia A C, 2014-09)
Hemispherical photography is profusely used in climatology and forest sciences in association with geomatics technology. It is possible to get a detailed record of the canopy and estimate, both of the same structure and ...
Politics of (un)document: Immigrants and photographic devices in Seba Kurtis's postdocumentary photography
(Taylor & Francis, 2014-03-14)
The essay discusses the experimental forms of visual representation in the work of the Argentinean photographer Seba Kurtis. His work portrays several migrations from the southern to northern hemispheres using "flawed" ...
Model-based local thresholding for canopy hemispherical photography
(National Research Council Canada-NRC Research Press, 2018-07)
Canopy hemispherical photography (HP) is widely used to estimate forest structural variables. To achieve good results with HP, a classification algorithm is needed to produce binary images to accurately estimate the gap ...
Influence Of Light And Plant Size On The Reproduction And Growth Of Small Palm Tree Species: Comparing Two Methods For Measuring Canopy Openness
(Botanical Soc Amer IncSt Louis, 2016)