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Comparative Evaluation of Algorithms for Leaf Area Index Estimation from Digital Hemispherical Photography through Virtual Forests

Jing Liu, Longhui Li, Markku Akerblom, Tiejun Wang, Andrew Skidmore, Xi Zhu, Marco Heurich
<span title="2021-08-23">2021</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/kay2tsbijbawliu45dnhvyvgsq" style="color: black;">Remote Sensing</a> </i> &nbsp;
Digital hemispherical photography (DHP) is a widely used in situ forest LAI measurement method. There have been many software programs encompassing a variety of algorithms to estimate LAI from DHP.  ...  Afterward, three programs were applied to estimate PAI from leaf-on DHP and the woody area index (WAI) from leaf-off DHP.  ...  The authors acknowledge the support of the "Remote Sensing Data Pool Initiative for the Bohemian Forest Ecosystem" data-sharing initiative of the Bavarian Forest National Park.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/rs13163325">doi:10.3390/rs13163325</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/gf5cl6jwkveapgnit3tl44caha">fatcat:gf5cl6jwkveapgnit3tl44caha</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20210825213429/https://res.mdpi.com/d_attachment/remotesensing/remotesensing-13-03325/article_deploy/remotesensing-13-03325.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/30/ab/30ab03fdc9465b8b58681ddc70c3570184c60b6f.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/rs13163325"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> mdpi.com </button> </a>

Estimating Leaf Area Index in Southeast Alaska: A Comparison of Two Techniques

Carolyn A. Eckrich, Elizabeth A. Flaherty, Merav Ben-David, Ben Bond-Lamberty
<span title="2013-11-04">2013</span> <i title="Public Library of Science (PLoS)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/s3gm7274mfe6fcs7e3jterqlri" style="color: black;">PLoS ONE</a> </i> &nbsp;
We compared simultaneously obtained measurements of LAI from a linear ceptometer and digital hemispheric photography in 21 forest stands on Prince of Wales Island, Alaska.  ...  Indirect measurements of leaf area index (LAI) estimated using gap fraction analysis with linear and hemispheric sensors have been commonly used to assess radiation interception by the canopy, although  ...  Lopez-Lozano and three anonymous reviewers for providing helpful comments on an earlier version of the manuscript.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1371/journal.pone.0077642">doi:10.1371/journal.pone.0077642</a> <a target="_blank" rel="external noopener" href="https://www.ncbi.nlm.nih.gov/pubmed/24223718">pmid:24223718</a> <a target="_blank" rel="external noopener" href="https://pubmed.ncbi.nlm.nih.gov/PMC3817193/">pmcid:PMC3817193</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/ufapqwxirrezzfha5h557q4cgu">fatcat:ufapqwxirrezzfha5h557q4cgu</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20171008201338/http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0077642&amp;type=printable" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/5d/35/5d358a8c67dd95da84202ec0a1fec806fd083774.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1371/journal.pone.0077642"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> plos.org </button> </a> <a target="_blank" rel="external noopener" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3817193" title="pubmed link"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> pubmed.gov </button> </a>

A fractal dimension-based modelling approach for studying the effect of leaf distribution on LAI retrieval in forest canopies

I. Jonckheere, K. Nackaerts, B. Muys, J. van Aardt, P. Coppin
<span title="">2006</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/cvdcdlce5bgxppemahogdxd7em" style="color: black;">Ecological Modelling</a> </i> &nbsp;
of a standardized protocol for the digital hemispherical camera.  ...  Reference LAI values (L exact) from virtual 3-D forest stands were compared to indirectly measured LAI values (L HP) obtained from simulated hemispherical photographs taken in the virtual stands.  ...  The evaluation has been addressed by comparing the reference LAI of the observed (virtual) foliage spatial distribution with the indirectly measured LAI from simulated hemispherical photographs, using  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.ecolmodel.2006.02.036">doi:10.1016/j.ecolmodel.2006.02.036</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/6bejpnhz3rhcxedveln55fkcii">fatcat:6bejpnhz3rhcxedveln55fkcii</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20100619073315/http://www.cis.rit.edu/DocumentLibrary/admin/uploads/CIS000028.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/a4/74/a47492f224be400dd72628bd2d1f5a876b908914.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.ecolmodel.2006.02.036"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> elsevier.com </button> </a>

Assessment of automatic gap fraction estimation of forests from digital hemispherical photography

Inge Jonckheere, Kris Nackaerts, Bart Muys, Pol Coppin
<span title="">2005</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5zvsmfernfh6pdqqyfzzwa3yxu" style="color: black;">Agricultural and Forest Meteorology</a> </i> &nbsp;
Thresholding is a central part of the analysis of hemispherical images in terms of gap fraction and leaf area index (LAI), and the selection of optimal thresholds has remained a challenge over decades.  ...  This automatic method might be the best solution for a fast, reliable and objective use of hemispherical photographs for gap fraction and LAI estimation in forest stands, given that the threshold setting  ...  Acknowledgements We would like to thank Sigma Corporation (Tokyo, Japan) for providing us with data on the lens distortion for the Sigma 8 mm f/4 'fisheye' lens, used in the study.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.agrformet.2005.06.003">doi:10.1016/j.agrformet.2005.06.003</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/2jy6a4wgv5bkrm4rmeh75l3q5y">fatcat:2jy6a4wgv5bkrm4rmeh75l3q5y</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20190303073033/http://pdfs.semanticscholar.org/b1b5/af1e275bacba8bf0c87fca28bcaccd53f0e4.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/b1/b5/b1b5af1e275bacba8bf0c87fca28bcaccd53f0e4.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.agrformet.2005.06.003"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> elsevier.com </button> </a>

Evaluation of hemispherical photos extracted from smartphone spherical panorama images to estimate canopy structure and forest light environment [article]

A. Z. Andis Arietta
<span title="2020-12-15">2020</span> <i title="Cold Spring Harbor Laboratory"> bioRxiv </i> &nbsp; <span class="release-stage" >pre-print</span>
I estimated common canopy and light measures (canopy openness, leaf area index, and global site factor) as well as image quality measures (total gap area, number of gaps, and relative gap size) to compare  ...  Hemispherical photography (HP) is one of the most commonly employed methods to estimate forest canopy structure and understory light environments.  ...  Marlyse Duguid for providing thoughts on the methods and manuscript.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1101/2020.12.15.422956">doi:10.1101/2020.12.15.422956</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/vdc4uphdbnhbhd3tgpbip2daxm">fatcat:vdc4uphdbnhbhd3tgpbip2daxm</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20210428195415/https://www.biorxiv.org/content/biorxiv/early/2020/12/17/2020.12.15.422956.full.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/07/f8/07f817e314204e619b1819e42058d599eb9112c1.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1101/2020.12.15.422956"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> biorxiv.org </button> </a>

Assessment of Light Environment Variability in Broadleaved Forest Canopies Using Terrestrial Laser Scanning

Dimitry Van der Zande, Jan Stuckens, Willem W. Verstraeten, Bart Muys, Pol Coppin
<span title="2010-06-14">2010</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/kay2tsbijbawliu45dnhvyvgsq" style="color: black;">Remote Sensing</a> </i> &nbsp;
Light availability inside a forest canopy is of key importance to many ecosystem processes, such as photosynthesis and transpiration.  ...  Assessment of light availability and within-canopy light variability enables a more detailed understanding of these biophysical processes.  ...  Ackowledgments We would like to thank Raphaël Bequet of the University of Antwerp, Belgium for the assistance during the field campaigns.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/rs2061564">doi:10.3390/rs2061564</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/qzjju7rfljekjnh5xrziyc2wd4">fatcat:qzjju7rfljekjnh5xrziyc2wd4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180725045526/https://res.mdpi.com/def50200ba7d8de9f3235d33d2cdfcb79b2a4242792afc71dceb027c6e500aebf49a900aae2ae93450b0f6406fc93f3627ae9594929ce6ef03496d860db86fb36151c560cbffcd941258684b5a434e946de4f0e62ca385e7ec857b18be8070bb92ccde1c13dc1cc3ebb41630621357ea63200b73233b66c0e0fd9f7c58d2a8fd310f0cd76cd45496484aecb703d9ea6d194c7cb60f74d8fb628ad5dc399bec7e91ce?filename=&amp;attachment=1" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/4c/13/4c1355f6ef1b8f1989a9f1429205174b2f9c8e14.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/rs2061564"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> mdpi.com </button> </a>

Quantifying the impact of woody material on leaf area index estimation from hemispherical photography using 3D canopy simulations

William Woodgate, John D. Armston, Mathias Disney, Simon D. Jones, Lola Suarez, Michael J. Hill, Phil Wilkes, Mariela Soto-Berelov
<span title="">2016</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5zvsmfernfh6pdqqyfzzwa3yxu" style="color: black;">Agricultural and Forest Meteorology</a> </i> &nbsp;
woody-to-total plant area proportion (α) enables disaggregation of Plant 37 Area Index (PAI) into LAI and Woody Area Index (WAI) (Chen, 1996) .  ...  al., 2008) and 286 digital cover photography (Macfarlane et al., 2007b).  ...  For all 596 virtual scenes, there was a minimum distance of 0.3 m between tree stem centroids to avoid 597 direct overlap of stems.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.agrformet.2016.05.009">doi:10.1016/j.agrformet.2016.05.009</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/dxrgyh7nxzdyvim55adg7dkgd4">fatcat:dxrgyh7nxzdyvim55adg7dkgd4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180722041000/http://discovery.ucl.ac.uk/1520845/1/Woodgate%20et%20al%20Quantifying%20the%20impact%20of%20woody%20material%20on%20leaf%20area%20index%20estimation%20AAM.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/28/80/28804039379f7b90dda4182fc87106940833eb78.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.agrformet.2016.05.009"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> elsevier.com </button> </a>

Assessment of the MODIS LAI product for Australian ecosystems

Michael J. Hill, Udaya Senarath, Alex Lee, Melanie Zeppel, Joanne M. Nightingale, Richard (Dick) J. Williams, Tim R. McVicar
<span title="">2006</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/lm57ugzxwjehna44tee4sjxr4u" style="color: black;">Remote Sensing of Environment</a> </i> &nbsp;
with coincident field measurements of LAI, mostly from hemispherical photography.  ...  The leaf area index (LAI) product from the Moderate Resolution Imaging Spectroradiometer (MODIS) is important for monitoring and modelling global change and terrestrial dynamics at many scales.  ...  Acknowledgements This research was funded by the Cooperative Research Centre for Greenhouse Accounting. Udaya Senarath is  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.rse.2006.01.010">doi:10.1016/j.rse.2006.01.010</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/jk7iuwuakfdj7ijnjxrftmy54m">fatcat:jk7iuwuakfdj7ijnjxrftmy54m</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20070831021055/http://www.greenhouse.org.au/injune/further_info/papers/2006_Hill_Aust_LA_Injune.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/dc/3d/dc3d651cfbd7f626f8284d511cf7f37efe207079.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.rse.2006.01.010"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> elsevier.com </button> </a>

Validating canopy clumping retrieval methods using hemispherical photography in a simulated Eucalypt forest

William Woodgate, John D. Armston, Mathias Disney, Lola Suarez, Simon D. Jones, Michael J. Hill, Phil Wilkes, Mariela Soto-Berelov
<span title="">2017</span> <i title="Elsevier BV"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/5zvsmfernfh6pdqqyfzzwa3yxu" style="color: black;">Agricultural and Forest Meteorology</a> </i> &nbsp;
Hemispherical photography (HP) was assessed due to its ubiquity for indirect LAI and structure retrieval.  ...  Ω is essential to convert effective Plant or Leaf Area Index into actual LAI or PAI, which has previously been shown to have a significant impact on biophysical parameter retrieval using optical remote  ...  Disney acknowledges the support of the NERC National Centre for Earth Observation (NCEO).  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.agrformet.2017.07.027">doi:10.1016/j.agrformet.2017.07.027</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/gnz5x73nivcfva26spja3ziuva">fatcat:gnz5x73nivcfva26spja3ziuva</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180718232405/http://discovery.ucl.ac.uk/10025664/1/Woodgate_Validating_canopy_clumping_retrieval.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/27/1d/271dddee5b4646a9e354ee9b1c6ee8e94c94b8b7.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1016/j.agrformet.2017.07.027"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> elsevier.com </button> </a>

Characterizing Forest Growth and Productivity Using Remotely Sensed Data

Nicholas C. Coops
<span title="2015-07-07">2015</span> <i title="Springer Nature"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/ljrx4ymvsnbmbh4wuq3voegd5u" style="color: black;">Current Forestry Reports</a> </i> &nbsp;
Remote sensing enables a highly accurate approach for observation of forested ecosystems, providing the tools to estimate many biophysical parameters across a range of scales.  ...  There are a number of different methods of measuring the productivity of forested ecosystems using remote sensing.  ...  Acknowledgments Components of this research were funded by a NSERC Discovery grant to Coops. Mitchell Vartainian provided significant editorial help and David Williams for the diagram.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/s40725-015-0020-x">doi:10.1007/s40725-015-0020-x</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/jaqe7puu6jclvogeprsowrxeoq">fatcat:jaqe7puu6jclvogeprsowrxeoq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20190503085147/https://link.springer.com/content/pdf/10.1007%2Fs40725-015-0020-x.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/a7/68/a76831f62d29b6c41c3ec924a471dc5874e48ead.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/s40725-015-0020-x"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Modelling and Comparing Shading Effects of 3D Tree Structures with Virtual Leaves

Rafael Bohn Reckziegel, Elena Larysch, Jonathan P. Sheppard, Hans-Peter Kahle, Christopher Morhart
<span title="2021-02-02">2021</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/kay2tsbijbawliu45dnhvyvgsq" style="color: black;">Remote Sensing</a> </i> &nbsp;
For comparison, we assessed the shading effects using hemispherical photography as an alternative method.  ...  All shading effects were similarly distributed on the ground, with the exception of those derived through hemispherical photography, which were greater in size, but with less insolation reduction than  ...  Acknowledgments: We would like to thank Michael Nahm for his valuable support.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/rs13030532">doi:10.3390/rs13030532</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/7togcd75u5aphdoj3ph2egvohq">fatcat:7togcd75u5aphdoj3ph2egvohq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20210203211912/https://res.mdpi.com/d_attachment/remotesensing/remotesensing-13-00532/article_deploy/remotesensing-13-00532-v2.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/91/d9/91d92880452335e4317a9c018dad3fbaaaff971f.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/rs13030532"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> mdpi.com </button> </a>

On the exposure of hemispherical photographs in forests

P Beckschäfer, D Seidel, C Kleinn, J Xu
<span title="2013-06-13">2013</span> <i title="Italian Society of Sivilculture and Forest Ecology (SISEF)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/nn6k5dwqjzbzxj3rspx7rxgcau" style="color: black;">iForest : Biogeosciences and Forestry</a> </i> &nbsp;
We are also grateful to all members of the MMC-project for their support. Especially, we thank Rhett D.  ...  In addition, this study was supported by the CGIAR Research Program 6 on Forests, Trees and Agroforestry.  ...  To highlight the importance of a standardized method to determine exposure in hemispherical photography, we compare gap fraction estimates derived from auto-exposed photogra-phs to those derived from correctly  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3832/ifor0957-006">doi:10.3832/ifor0957-006</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/mokj4wjthbdmfk2zyrkjtey6ta">fatcat:mokj4wjthbdmfk2zyrkjtey6ta</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170809091632/http://www.worldagroforestry.org/sea/Publications/files/journal/JA0542-14.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/7d/e4/7de4bcdcd070cfdcd2c068cb9fda9e78044cf4a9.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3832/ifor0957-006"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>

Review of ground-based methods to measure the distribution of biomass in forest canopies

Dominik Seidel, Stefan Fleck, Christoph Leuschner, Tom Hammett
<span title="">2011</span> <i title="Springer Nature"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/wuinenwsbbdshheyn7pwuiwzbe" style="color: black;">Annals of Forest Science</a> </i> &nbsp;
within a forest. & Research question This paper reviews the currently available instruments for measuring the distribution of biomass within forest canopies.  ...  terrestrial laser scanner data as this could allow the calculation of functional attributes for different sections of a canopy on a high spatial resolution.  ...  Acknowledgements The helpful comments of two anonymous reviewers are greatly acknowledged. The work is part of doctoral studies being undertaken by D.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/s13595-011-0040-z">doi:10.1007/s13595-011-0040-z</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/33auvyhu2rdthf24gwz3n2rbmi">fatcat:33auvyhu2rdthf24gwz3n2rbmi</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20171114085629/http://publisher-connector.core.ac.uk/resourcesync/data/Springer-OA/pdf/e68/aHR0cDovL2xpbmsuc3ByaW5nZXIuY29tLzEwLjEwMDcvczEzNTk1LTAxMS0wMDQwLXoucGRm.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/7e/cf/7ecf0581c228b3e9dd78a0f3f818d9317addd362.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1007/s13595-011-0040-z"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> springer.com </button> </a>

Detailed reconstruction of trees from terrestrial laser scans for remote sensing and radiative transfer modelling applications

Růžena Janoutová, Lucie Homolová, Jan Novotný, Barbora Navrátilová, Miroslav Pikl, Zbyněk Malenovský
<span title="2021-08-27">2021</span> <i title="Oxford University Press (OUP)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/64bmkd2seffxvgjev73jebrr4u" style="color: black;">in silico Plants</a> </i> &nbsp;
Our algorithm for 3D model construction of a single tree is based on terrestrial laser scanning (TLS) and ancillary field measurements of leaf angle distribution, percentage of current-year and older leaves  ...  (for retrieval of leaf biochemical compounds from nadir canopy reflectance signatures captured in airborne imaging spectroscopy data) and solar-induced chlorophyll fluorescence signal (for experimentally  ...  from the RMIT University in Melbourne for acquisition of the white peppermint TLS point clouds, and IFER -Institute of Forest Ecosystem Research, Ltd. and IFER -Monitoring and Mapping Solutions, Ltd.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1093/insilicoplants/diab026">doi:10.1093/insilicoplants/diab026</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/lugtjqbo7vctfkxe2kpx5nezya">fatcat:lugtjqbo7vctfkxe2kpx5nezya</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20210908033211/https://watermark.silverchair.com/diab026.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAwQwggMABgkqhkiG9w0BBwagggLxMIIC7QIBADCCAuYGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMi_TfbJgpRqZ0_5VpAgEQgIICtyF2gPoCQ92DrrOg0LneKTgCVcboSXd3UKyRCExt41w9ZxtOcFJD22ldlnS_JIy3Sb1rrpA0BkDIbOrV9OWIgUBlSfnSYrBQRwMD3vm_p_21K1KbJJ3jsXEmeJqkpKX1HlpFliP_aFuebFIy08heJB9_b31JbJYfe7XhEk_xdt5OwvbQfvOk3VJORkzVSIEIJi7-DaK_Y2y8iTDRXkKLWLb1FCP7uYusqlBXVaqpMolpo9q-a4obAWmpidICRPWSDHt2ngw0h4nKPrU5177p_Z6O0hHqmI2DvNSBV0K7ImDvfblKbhpUsqaJ3ksMWxpp4cK0pEleih-D4lpT0ML2fyaQLk59gAq4KeVIPZK2HYYhp743-XyUY2pDAWKhCH_CRTCo9zclAtwOA6CR7WJlT0-1_tukwKrmMPCRC8HydIuuTDP2zLGEGUWLCB6HoS78FImxALP7IvxIV2mKJ175gptKTot33NnbKY0Dd-sf0MOhrwC_8MBLxzcgQI3TapVHmmun0B_Do0okxk9ejeb2ROLMOpO8SuHKqFKULHkil1_dO4-I1FSYkJT20CLndoxbGg5UlLJdE-51PBWfSz2HmACUV5FwU_rvY39w6sKO_FIx1FegRcpz0Hqrk6lymLMAgCzzj7K8aglTnugJUm05GakMnsMZ3Zqt9tGWIOFZ9_4Mer4D-umtxI6L0-9tZ1Q21OnkdBksjj0mZLPQlsAzyhNamWpErsqmrdG7b2Wylxcq32_DgQfdP9uniRvzWbHy7f8fgmqViexGk83dnsJdmWVHe_a2f2S-DSKwiiW4rogJ379BZbl7vRnZX-qYBrt75Xz8EA5zDX1-bZ6a-HO_oD8ejapP7nwEkM2Vu6ILwszWL5DJvvo41hLPvQOtRFUfC69TZWXPNTQcrfyPE89lAoLq6zBTqG07" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/ff/f3/fff3306c29faaa9e8b32ae59de15709d8a2d1978.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1093/insilicoplants/diab026"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> oup.com </button> </a>

Modeling Solar Radiation in the Forest Using Remote Sensing Data: A Review of Approaches and Opportunities

Alex Olpenda, Krzysztof Stereńczak, Krzysztof Będkowski
<span title="2018-05-01">2018</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/kay2tsbijbawliu45dnhvyvgsq" style="color: black;">Remote Sensing</a> </i> &nbsp;
., hemispherical photography).  ...  area index (LAI) The extinction coefficient which corresponds to an optical depth per unit leaf area [51] is determined by a number of factors, such as leaf angle distribution, canopy structure, and clumping  ...  Acknowledgments: This work was supported financially by the Project LIFE+ ForBioSensing PL "Comprehensive monitoring of stand dynamics in the Białowieża Forest", as supported by remote sensing techniques  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/rs10050694">doi:10.3390/rs10050694</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/em5dsx2dqbhgtpjmip63hy7sp4">fatcat:em5dsx2dqbhgtpjmip63hy7sp4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20180724155156/https://res.mdpi.com/def50200ec6f6e28cc9746937622eac33207e88352bc4f8c2d9c43c2af4fe9072f18256c0094b3a14edc4c7c88caa35d1fa08f3d97be965cd20ad78d58edf7d59fe8b88787b267b386c1019e3831d22e1c80cec3286ee7178bb453abb2b2547ceee36b43bd64b58547e8a740a342b5b52e840fbc2d27ff0c1b82699bdc826fbb3a3d78bc8be0dfbc9458deb55fcf010d6f00d8cbd68880c80b1ba77ac114ee492b6a?filename=&amp;attachment=1" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/rs10050694"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> mdpi.com </button> </a>
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