Results 1 to 10 of about 5,357 (161)
Quantifying the Accuracy of Digital Hemispherical Photography for Leaf Area Index Estimates on Broad-Leaved Tree Species [PDF]
Sensors, 2018 Digital hemispherical photography (DHP) has been widely used to estimate leaf area index (LAI) in forestry. Despite the advancement in the processing of hemispherical images with dedicated tools, several steps are still manual and thus easily affected by
Carlo Gilardelli +3 more
doaj +2 more sources
Quantitative digital imaging of banana growth suppression by plant parasitic nematodes. [PDF]
PLoS ONE, 2012 A digital camera fitted with a hemispherical lens was used to generate canopy leaf area index (LAI) values for a banana (Musa spp.) field trial with the aim of establishing a method for monitoring stresses on tall crop plants.
Hugh Roderick +4 more
doaj +4 more sources
Multitemporal Monitoring of Plant Area Index in the Valencia Rice District with PocketLAI [PDF]
Remote Sensing, 2016 Leaf area index (LAI) is a key biophysical parameter used to determine foliage cover and crop growth in environmental studies in order to assess crop yield.
Manuel Campos-Taberner +9 more
doaj +4 more sources
Estimating Effective Leaf Area Index of Winter Wheat Based on UAV Point Cloud Data
Drones, 2023 Leaf area index (LAI) is a widely used plant biophysical parameter required for modelling plant photosynthesis and crop yield estimation. UAV remote sensing plays an increasingly important role in providing the data source needed for LAI extraction. This
Jie Yang +7 more
doaj +1 more source
Remote Sensing, 2021 The in situ leaf area index (LAI) measurement plays a vital role in calibrating and validating satellite LAI products. Digital hemispherical photography (DHP) is a widely used in situ forest LAI measurement method.
Jing Liu +6 more
doaj +1 more source
A Mixed Data-Based Deep Neural Network to Estimate Leaf Area Index in Wheat Breeding Trials [PDF]
, 2020 Remote and non-destructive estimation of leaf area index (LAI) has been a challenge in the last few decades as the direct and indirect methods available are laborious and time-consuming.
Apolo Apolo, Orly Enrique +3 more
core +1 more source
Methods in Ecology and Evolution, 2023 Digital hemispherical photography (DHP) is widely used to derive forest biophysical variables including leaf, plant, and green area index (LAI, PAI and GAI), the fraction of intercepted photosynthetically active radiation (FIPAR), and the fraction of ...
Luke A. Brown +7 more
doaj +1 more source
Ecological Indicators, 2021 Automatic and accurate measurements of the leaf area index (LAI) can provide information about key parameters of vegetation structure in an ecosystem. Little attention, however, has been paid to LAI dynamics for shrub canopies in both arid and semiarid ...
Xiaotao Niu +5 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 To further progress the validation of global leaf area index (LAI) products, temporally continuous reference data are a key requirement, as periodic field campaigns fail to adequately characterize temporal dynamics.
Luke A. Brown +4 more
doaj +1 more source
iForest - Biogeosciences and Forestry, 2012 Hemispherical photography has been used since the 1960s in forest ecology. Nevertheless, specific constraints related to film cameras have progressively prevented widespread adoption of this photographic method.
Chianucci F, Cutini A
doaj +1 more source