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Applied Geography, 2022 The leaf area index (LAI) serves as a proxy to understand the dynamics of plant productivity, energy balance, and gas exchange. Cost-effective and accurate estimation of LAI is essential for under-assessed carbon-rich tropical forests, e.g., mangroves.
S. Paramanik, M.D. Behera, J. Dash
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Canadian Journal of Forest Research, 2015
Optical methods have been widely used to estimate seasonal changes of the leaf area index (LAI) in forest stands because they are convenient and effective; however, their accuracy in deciduous broadleaf forests has rarely been evaluated. We estimate the seasonal changes in the LAI by combining periodic observations of leaf area variation with litter ...
Zhili Liu, Xingchang Wang, Jing M Chen
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Optical methods have been widely used to estimate seasonal changes of the leaf area index (LAI) in forest stands because they are convenient and effective; however, their accuracy in deciduous broadleaf forests has rarely been evaluated. We estimate the seasonal changes in the LAI by combining periodic observations of leaf area variation with litter ...
Zhili Liu, Xingchang Wang, Jing M Chen
exaly +2 more sources
Applications of dual-wavelength hemispherical photography in urban climatology and urban forestry
Urban Forestry and Urban Greening, 2021 Digital hemispherical photography (DHP) is widely used to measure the radiative environment and estimate sky view factors (SVF) in urban areas and leaf area index (LAI) in forests.
Janina Konarska +2 more
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IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
Estimation of LAI is really a challenge and researchers are developing new methods to get more accurate estimation of LAI. MODIS continuously provides globally temporal LAI product and it is easily accessible for application and development purpose. But main problem is the spatial resolution (500m) where the main target features has affected due to the
Somnath Paramanik +3 more
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Estimation of LAI is really a challenge and researchers are developing new methods to get more accurate estimation of LAI. MODIS continuously provides globally temporal LAI product and it is easily accessible for application and development purpose. But main problem is the spatial resolution (500m) where the main target features has affected due to the
Somnath Paramanik +3 more
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Automatic thresholding for digital hemispherical photography
Canadian Journal of Forest Research, 2004This paper proposes an automatic thresholding method for the discrimination of sky and canopy elements in color hemispherical photographs taken with a digital camera (Nikon Coolpix 950). The exposures for photography were principally determined on the basis of zenith luminance. DIFphoto, which is diffuse transmittance calculated from the hemispherical
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Comparison of Image Segmentation Methods Based on Digital Hemisphere Photography
IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, 2023Tianxin Duan +5 more
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MEF-DHP: Digital Hemispheric Photography Method Based On Multi-Exposure Fusion
IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, 2023Shuaifeng Jiao +6 more
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IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022
Shuaifeng Jiao +5 more
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Shuaifeng Jiao +5 more
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