Segmentation of tree seedling point clouds into elementary units
Identifieur interne : 004444 ( Hal/Corpus ); précédent : 004443; suivant : 004445Segmentation of tree seedling point clouds into elementary units
Auteurs : Franck Hétroy-Wheeler ; Eric Casella ; Dobrina BoltchevaSource :
- International Journal of Remote Sensing [ 0143-1161 ] ; 2016.
English descriptors
- mix :
Abstract
This paper describes a new semi-automatic method to cluster TLS data into meaningful sets of points to extract plant components. The approach is designed for small plants with distinguishable branches and leaves, such as tree seedlings. It first creates a graph by connecting each point to its most relevant neighbours, then embeds the graph into a spectral space, and finally segments the embedding into clusters of points. The process can then be iterated on each cluster separately. The main idea underlying the approach is that the spectral embedding of the graph aligns the points along the shape's principal directions. A quantitative evaluation of the segmentation accuracy, as well as of leaf area estimates, is provided on a poplar seedling mock-up. It shows that the segmentation is robust with false positive and false negative rates around 1%. Qualitative results on four contrasting plant species with three different scan resolution levels each are also shown.
Url:
Links to Exploration step
Hal:hal-01285419Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Segmentation of tree seedling point clouds into elementary units</title><author><name sortKey="Hetroy Wheeler, Franck" sort="Hetroy Wheeler, Franck" uniqKey="Hetroy Wheeler F" first="Franck" last="Hétroy-Wheeler">Franck Hétroy-Wheeler</name><affiliation><hal:affiliation type="researchteam" xml:id="struct-147723" status="VALID"><idno type="RNSR">201120981M</idno><orgName>Capture and Analysis of Shapes in Motion</orgName><orgName type="acronym">MORPHEO</orgName><desc><address><addrLine>INRIA Grenoble Rhône-Alpes 655, avenue de l'Europe 38334 Saint Ismier Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/equipes/morpheo</ref></desc><listRelation><relation active="#struct-2497" type="direct"></relation><relation active="#struct-300009" type="indirect"></relation><relation active="#struct-24474" type="direct"></relation><relation active="#struct-3886" type="indirect"></relation><relation active="#struct-51016" type="indirect"></relation><relation active="#struct-300339" type="indirect"></relation><relation name="UMR5224" active="#struct-441569" type="indirect"></relation><relation active="#struct-300275" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-2497" type="direct"><org type="laboratory" xml:id="struct-2497" status="VALID"><idno type="RNSR">199218244V</idno><orgName>Inria Grenoble - Rhône-Alpes</orgName><desc><address><addrLine>Inovallée655 avenue de l'Europe38330 Montbonnot</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/centre/grenoble</ref></desc><listRelation><relation active="#struct-300009" type="direct"></relation></listRelation></org></tutelle><tutelle active="#struct-300009" type="indirect"><org type="institution" xml:id="struct-300009" status="VALID"><orgName>Institut National de Recherche en Informatique et en Automatique</orgName><orgName type="acronym">Inria</orgName><desc><address><addrLine>Domaine de VoluceauRocquencourt - BP 10578153 Le Chesnay Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/en/</ref></desc></org></tutelle><tutelle active="#struct-24474" type="direct"><org type="laboratory" xml:id="struct-24474" status="VALID"><orgName>Laboratoire Jean Kuntzmann</orgName><orgName type="acronym">LJK</orgName><desc><address><addrLine>Tour IRMA 51 rue des Mathématiques - 53 38041 GRENOBLE CEDEX 9</addrLine><country key="FR"></country></address><ref type="url">http://ljk.imag.fr</ref></desc><listRelation><relation active="#struct-3886" type="direct"></relation><relation active="#struct-51016" type="direct"></relation><relation active="#struct-300339" type="direct"></relation><relation name="UMR5224" active="#struct-441569" type="direct"></relation></listRelation></org></tutelle><tutelle active="#struct-3886" type="indirect"><org type="institution" xml:id="struct-3886" status="OLD"><orgName>Université Pierre Mendès France</orgName><orgName type="acronym">Grenoble 2 UPMF</orgName><date type="end">2015-12-31</date><desc><address><addrLine>BP 47 - 38040 Grenoble Cedex 9</addrLine><country key="FR"></country></address><ref type="url">http://www.upmf-grenoble.fr/</ref></desc></org></tutelle><tutelle active="#struct-51016" type="indirect"><org type="institution" xml:id="struct-51016" status="OLD"><orgName>Université Joseph Fourier</orgName><orgName type="acronym">UJF</orgName><date type="end">2015-12-31</date><desc><address><addrLine>BP 53 - 38041 Grenoble Cedex 9</addrLine><country key="FR"></country></address><ref type="url">http://www.ujf-grenoble.fr/</ref></desc></org></tutelle><tutelle active="#struct-300339" type="indirect"><org type="institution" xml:id="struct-300339" status="VALID"><orgName>Institut Polytechnique de Grenoble - Grenoble Institute of Technology</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle name="UMR5224" active="#struct-441569" type="indirect"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="ISNI">0000000122597504</idno><idno type="IdRef">02636817X</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle><tutelle active="#struct-300275" type="direct"><org type="institution" xml:id="struct-300275" status="VALID"><orgName>Institut National Polytechnique de Grenoble (INPG)</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation></affiliation></author><author><name sortKey="Casella, Eric" sort="Casella, Eric" uniqKey="Casella E" first="Eric" last="Casella">Eric Casella</name><affiliation><hal:affiliation type="laboratory" xml:id="struct-220461" status="VALID"><orgName>Centre for Sustainable Forestry and Climate Change</orgName><desc><address><addrLine>Forest Research Alice Holt Lodge Farnham Surrey GU10 4LH</addrLine><country key="GB"></country></address><ref type="url">http://www.forestry.gov.uk/fr/INFD-7NCCWK</ref></desc><listRelation><relation active="#struct-374404" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-374404" type="direct"><org type="institution" xml:id="struct-374404" status="INCOMING"><orgName>Forest Research</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation></affiliation></author><author><name sortKey="Boltcheva, Dobrina" sort="Boltcheva, Dobrina" uniqKey="Boltcheva D" first="Dobrina" last="Boltcheva">Dobrina Boltcheva</name><affiliation><hal:affiliation type="researchteam" xml:id="struct-205118" status="VALID"><idno type="RNSR">200618296R</idno><orgName>Geometry and Lighting</orgName><orgName type="acronym">ALICE</orgName><desc><address><country key="FR"></country></address><ref type="url">http://www.inria.fr/equipes/alice</ref></desc><listRelation><relation active="#struct-129671" type="direct"></relation><relation active="#struct-300009" type="indirect"></relation><relation active="#struct-423083" type="direct"></relation><relation active="#struct-206040" type="indirect"></relation><relation active="#struct-413289" type="indirect"></relation><relation name="UMR7503" active="#struct-441569" type="indirect"></relation></listRelation><tutelles><tutelle active="#struct-129671" type="direct"><org type="laboratory" xml:id="struct-129671" status="VALID"><idno type="RNSR">198618246Y</idno><orgName>INRIA Nancy - Grand Est</orgName><desc><address><addrLine>615 rue du Jardin Botanique 54600 Villers-lès-Nancy</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/nancy</ref></desc><listRelation><relation active="#struct-300009" type="direct"></relation></listRelation></org></tutelle><tutelle active="#struct-300009" type="indirect"><org type="institution" xml:id="struct-300009" status="VALID"><orgName>Institut National de Recherche en Informatique et en Automatique</orgName><orgName type="acronym">Inria</orgName><desc><address><addrLine>Domaine de VoluceauRocquencourt - BP 10578153 Le Chesnay Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/en/</ref></desc></org></tutelle><tutelle active="#struct-423083" type="direct"><org type="department" xml:id="struct-423083" status="VALID"><orgName>Department of Algorithms, Computation, Image and Geometry</orgName><orgName type="acronym">LORIA - ALGO</orgName><desc><address><country key="FR"></country></address><ref type="url">http://www.loria.fr/la-recherche-en/departements/algorithmics</ref></desc><listRelation><relation active="#struct-206040" type="direct"></relation><relation active="#struct-300009" type="indirect"></relation><relation active="#struct-413289" type="indirect"></relation><relation name="UMR7503" active="#struct-441569" type="indirect"></relation></listRelation></org></tutelle><tutelle active="#struct-206040" type="indirect"><org type="laboratory" xml:id="struct-206040" status="VALID"><idno type="IdRef">067077927</idno><idno type="RNSR">198912571S</idno><idno type="IdUnivLorraine">[UL]RSI--</idno><orgName>Laboratoire Lorrain de Recherche en Informatique et ses Applications</orgName><orgName type="acronym">LORIA</orgName><date type="start">2012-01-01</date><desc><address><addrLine>Campus Scientifique BP 239 54506 Vandoeuvre-lès-Nancy Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.loria.fr</ref></desc><listRelation><relation active="#struct-300009" type="direct"></relation><relation active="#struct-413289" type="direct"></relation><relation name="UMR7503" active="#struct-441569" type="direct"></relation></listRelation></org></tutelle><tutelle active="#struct-413289" type="indirect"><org type="institution" xml:id="struct-413289" status="VALID"><idno type="IdRef">157040569</idno><idno type="IdUnivLorraine">[UL]100--</idno><orgName>Université de Lorraine</orgName><orgName type="acronym">UL</orgName><date type="start">2012-01-01</date><desc><address><addrLine>34 cours Léopold - CS 25233 - 54052 Nancy cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-lorraine.fr/</ref></desc></org></tutelle><tutelle name="UMR7503" active="#struct-441569" type="indirect"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="ISNI">0000000122597504</idno><idno type="IdRef">02636817X</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle></tutelles></hal:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">HAL</idno><idno type="RBID">Hal:hal-01285419</idno><idno type="halId">hal-01285419</idno><idno type="halUri">https://hal.inria.fr/hal-01285419</idno><idno type="url">https://hal.inria.fr/hal-01285419</idno><date when="2016">2016</date><idno type="wicri:Area/Hal/Corpus">004444</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Segmentation of tree seedling point clouds into elementary units</title><author><name sortKey="Hetroy Wheeler, Franck" sort="Hetroy Wheeler, Franck" uniqKey="Hetroy Wheeler F" first="Franck" last="Hétroy-Wheeler">Franck Hétroy-Wheeler</name><affiliation><hal:affiliation type="researchteam" xml:id="struct-147723" status="VALID"><idno type="RNSR">201120981M</idno><orgName>Capture and Analysis of Shapes in Motion</orgName><orgName type="acronym">MORPHEO</orgName><desc><address><addrLine>INRIA Grenoble Rhône-Alpes 655, avenue de l'Europe 38334 Saint Ismier Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/equipes/morpheo</ref></desc><listRelation><relation active="#struct-2497" type="direct"></relation><relation active="#struct-300009" type="indirect"></relation><relation active="#struct-24474" type="direct"></relation><relation active="#struct-3886" type="indirect"></relation><relation active="#struct-51016" type="indirect"></relation><relation active="#struct-300339" type="indirect"></relation><relation name="UMR5224" active="#struct-441569" type="indirect"></relation><relation active="#struct-300275" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-2497" type="direct"><org type="laboratory" xml:id="struct-2497" status="VALID"><idno type="RNSR">199218244V</idno><orgName>Inria Grenoble - Rhône-Alpes</orgName><desc><address><addrLine>Inovallée655 avenue de l'Europe38330 Montbonnot</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/centre/grenoble</ref></desc><listRelation><relation active="#struct-300009" type="direct"></relation></listRelation></org></tutelle><tutelle active="#struct-300009" type="indirect"><org type="institution" xml:id="struct-300009" status="VALID"><orgName>Institut National de Recherche en Informatique et en Automatique</orgName><orgName type="acronym">Inria</orgName><desc><address><addrLine>Domaine de VoluceauRocquencourt - BP 10578153 Le Chesnay Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/en/</ref></desc></org></tutelle><tutelle active="#struct-24474" type="direct"><org type="laboratory" xml:id="struct-24474" status="VALID"><orgName>Laboratoire Jean Kuntzmann</orgName><orgName type="acronym">LJK</orgName><desc><address><addrLine>Tour IRMA 51 rue des Mathématiques - 53 38041 GRENOBLE CEDEX 9</addrLine><country key="FR"></country></address><ref type="url">http://ljk.imag.fr</ref></desc><listRelation><relation active="#struct-3886" type="direct"></relation><relation active="#struct-51016" type="direct"></relation><relation active="#struct-300339" type="direct"></relation><relation name="UMR5224" active="#struct-441569" type="direct"></relation></listRelation></org></tutelle><tutelle active="#struct-3886" type="indirect"><org type="institution" xml:id="struct-3886" status="OLD"><orgName>Université Pierre Mendès France</orgName><orgName type="acronym">Grenoble 2 UPMF</orgName><date type="end">2015-12-31</date><desc><address><addrLine>BP 47 - 38040 Grenoble Cedex 9</addrLine><country key="FR"></country></address><ref type="url">http://www.upmf-grenoble.fr/</ref></desc></org></tutelle><tutelle active="#struct-51016" type="indirect"><org type="institution" xml:id="struct-51016" status="OLD"><orgName>Université Joseph Fourier</orgName><orgName type="acronym">UJF</orgName><date type="end">2015-12-31</date><desc><address><addrLine>BP 53 - 38041 Grenoble Cedex 9</addrLine><country key="FR"></country></address><ref type="url">http://www.ujf-grenoble.fr/</ref></desc></org></tutelle><tutelle active="#struct-300339" type="indirect"><org type="institution" xml:id="struct-300339" status="VALID"><orgName>Institut Polytechnique de Grenoble - Grenoble Institute of Technology</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle name="UMR5224" active="#struct-441569" type="indirect"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="ISNI">0000000122597504</idno><idno type="IdRef">02636817X</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle><tutelle active="#struct-300275" type="direct"><org type="institution" xml:id="struct-300275" status="VALID"><orgName>Institut National Polytechnique de Grenoble (INPG)</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation></affiliation></author><author><name sortKey="Casella, Eric" sort="Casella, Eric" uniqKey="Casella E" first="Eric" last="Casella">Eric Casella</name><affiliation><hal:affiliation type="laboratory" xml:id="struct-220461" status="VALID"><orgName>Centre for Sustainable Forestry and Climate Change</orgName><desc><address><addrLine>Forest Research Alice Holt Lodge Farnham Surrey GU10 4LH</addrLine><country key="GB"></country></address><ref type="url">http://www.forestry.gov.uk/fr/INFD-7NCCWK</ref></desc><listRelation><relation active="#struct-374404" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-374404" type="direct"><org type="institution" xml:id="struct-374404" status="INCOMING"><orgName>Forest Research</orgName><desc><address><country key="FR"></country></address></desc></org></tutelle></tutelles></hal:affiliation></affiliation></author><author><name sortKey="Boltcheva, Dobrina" sort="Boltcheva, Dobrina" uniqKey="Boltcheva D" first="Dobrina" last="Boltcheva">Dobrina Boltcheva</name><affiliation><hal:affiliation type="researchteam" xml:id="struct-205118" status="VALID"><idno type="RNSR">200618296R</idno><orgName>Geometry and Lighting</orgName><orgName type="acronym">ALICE</orgName><desc><address><country key="FR"></country></address><ref type="url">http://www.inria.fr/equipes/alice</ref></desc><listRelation><relation active="#struct-129671" type="direct"></relation><relation active="#struct-300009" type="indirect"></relation><relation active="#struct-423083" type="direct"></relation><relation active="#struct-206040" type="indirect"></relation><relation active="#struct-413289" type="indirect"></relation><relation name="UMR7503" active="#struct-441569" type="indirect"></relation></listRelation><tutelles><tutelle active="#struct-129671" type="direct"><org type="laboratory" xml:id="struct-129671" status="VALID"><idno type="RNSR">198618246Y</idno><orgName>INRIA Nancy - Grand Est</orgName><desc><address><addrLine>615 rue du Jardin Botanique 54600 Villers-lès-Nancy</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/nancy</ref></desc><listRelation><relation active="#struct-300009" type="direct"></relation></listRelation></org></tutelle><tutelle active="#struct-300009" type="indirect"><org type="institution" xml:id="struct-300009" status="VALID"><orgName>Institut National de Recherche en Informatique et en Automatique</orgName><orgName type="acronym">Inria</orgName><desc><address><addrLine>Domaine de VoluceauRocquencourt - BP 10578153 Le Chesnay Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/en/</ref></desc></org></tutelle><tutelle active="#struct-423083" type="direct"><org type="department" xml:id="struct-423083" status="VALID"><orgName>Department of Algorithms, Computation, Image and Geometry</orgName><orgName type="acronym">LORIA - ALGO</orgName><desc><address><country key="FR"></country></address><ref type="url">http://www.loria.fr/la-recherche-en/departements/algorithmics</ref></desc><listRelation><relation active="#struct-206040" type="direct"></relation><relation active="#struct-300009" type="indirect"></relation><relation active="#struct-413289" type="indirect"></relation><relation name="UMR7503" active="#struct-441569" type="indirect"></relation></listRelation></org></tutelle><tutelle active="#struct-206040" type="indirect"><org type="laboratory" xml:id="struct-206040" status="VALID"><idno type="IdRef">067077927</idno><idno type="RNSR">198912571S</idno><idno type="IdUnivLorraine">[UL]RSI--</idno><orgName>Laboratoire Lorrain de Recherche en Informatique et ses Applications</orgName><orgName type="acronym">LORIA</orgName><date type="start">2012-01-01</date><desc><address><addrLine>Campus Scientifique BP 239 54506 Vandoeuvre-lès-Nancy Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.loria.fr</ref></desc><listRelation><relation active="#struct-300009" type="direct"></relation><relation active="#struct-413289" type="direct"></relation><relation name="UMR7503" active="#struct-441569" type="direct"></relation></listRelation></org></tutelle><tutelle active="#struct-413289" type="indirect"><org type="institution" xml:id="struct-413289" status="VALID"><idno type="IdRef">157040569</idno><idno type="IdUnivLorraine">[UL]100--</idno><orgName>Université de Lorraine</orgName><orgName type="acronym">UL</orgName><date type="start">2012-01-01</date><desc><address><addrLine>34 cours Léopold - CS 25233 - 54052 Nancy cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.univ-lorraine.fr/</ref></desc></org></tutelle><tutelle name="UMR7503" active="#struct-441569" type="indirect"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="ISNI">0000000122597504</idno><idno type="IdRef">02636817X</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle></tutelles></hal:affiliation></affiliation></author></analytic><series><title level="j">International Journal of Remote Sensing</title><idno type="ISSN">0143-1161</idno><imprint><date type="datePub">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term> 3D point cloud</term><term> segmentation</term><term> spectral clustering</term><term> tLiDAR</term><term> tree seedling</term><term>terrestrial laser scanning</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This paper describes a new semi-automatic method to cluster TLS data into meaningful sets of points to extract plant components. The approach is designed for small plants with distinguishable branches and leaves, such as tree seedlings. It first creates a graph by connecting each point to its most relevant neighbours, then embeds the graph into a spectral space, and finally segments the embedding into clusters of points. The process can then be iterated on each cluster separately. The main idea underlying the approach is that the spectral embedding of the graph aligns the points along the shape's principal directions. A quantitative evaluation of the segmentation accuracy, as well as of leaf area estimates, is provided on a poplar seedling mock-up. It shows that the segmentation is robust with false positive and false negative rates around 1%. Qualitative results on four contrasting plant species with three different scan resolution levels each are also shown.</div></front></TEI><hal api="V3"><titleStmt><title xml:lang="en">Segmentation of tree seedling point clouds into elementary units</title><author role="aut"><persName><forename type="first">Franck</forename><surname>Hétroy-Wheeler</surname></persName><email>Franck.Hetroy@inria.fr</email><ptr type="url" target="http://morpheo.inrialpes.fr/people/hetroy/"></ptr><idno type="idhal">fhw</idno><idno type="halauthor">1197509</idno><orgName ref="#struct-89889"></orgName><affiliation ref="#struct-147723"></affiliation></author><author role="aut"><persName><forename type="first">Eric</forename><surname>Casella</surname></persName><email>eric.casella@forestry.gsi.gov.uk</email><ptr type="url" target="http://www.forestry.gov.uk/fr/INFD-6E8B4Y"></ptr><idno type="halauthor">1306567</idno><affiliation ref="#struct-220461"></affiliation></author><author role="aut"><persName><forename type="first">Dobrina</forename><surname>Boltcheva</surname></persName><email>dobrina.boltcheva@inria.fr</email><ptr type="url" target="http://www.loria.fr/~dboltche/"></ptr><idno type="halauthor">1306568</idno><affiliation ref="#struct-205118"></affiliation></author><editor role="depositor"><persName><forename>Franck</forename><surname>Hétroy-Wheeler</surname></persName><email>Franck.Hetroy@inria.fr</email></editor><funder>Inria, Université Grenoble Alpes, Forestry Commission, fondation Agropolis</funder></titleStmt><editionStmt><edition n="v1" type="current"><date type="whenSubmitted">2016-03-21 11:36:17</date><date type="whenWritten">2016-03-16</date><date type="whenModified">2016-03-26 01:05:52</date><date type="whenReleased">2016-03-25 10:41:40</date><date type="whenProduced">2016</date><date type="whenEndEmbargoed">2016-03-16</date><ref type="file" target="https://hal.inria.fr/hal-01285419/document"><date notBefore="2016-03-16"></date></ref><ref type="file" subtype="author" n="1" target="https://hal.inria.fr/hal-01285419/file/plantscan.pdf"><date notBefore="2016-03-16"></date></ref><ref type="annex" subtype="figure" n="1" target="https://hal.inria.fr/hal-01285419/file/fig7i.png"><date notBefore="2016-03-09"></date></ref></edition><respStmt><resp>contributor</resp><name key="109345"><persName><forename>Franck</forename><surname>Hétroy-Wheeler</surname></persName><email>Franck.Hetroy@inria.fr</email></name></respStmt></editionStmt><publicationStmt><distributor>CCSD</distributor><idno type="halId">hal-01285419</idno><idno type="halUri">https://hal.inria.fr/hal-01285419</idno><idno type="halBibtex">hetroywheeler:hal-01285419</idno><idno type="halRefHtml">International Journal of Remote Sensing, Taylor & Francis, 2016</idno><idno type="halRef">International Journal of Remote Sensing, Taylor & Francis, 2016</idno></publicationStmt><seriesStmt><idno type="stamp" n="UGA">HAL Grenoble Alpes</idno><idno type="stamp" n="LJK" p="UGA">Laboratoire Jean Kuntzmann</idno><idno type="stamp" n="LJK_GI" p="LJK">Département Géométrie et Images</idno><idno type="stamp" n="LJK_GI_MORPHEO" p="LJK_GI">MORPHEO</idno><idno type="stamp" n="CNRS">CNRS - Centre national de la recherche scientifique</idno><idno type="stamp" n="UNIV-PMF_GRENOBLE" p="UGA">Université Pierre-Mendès-France - Grenoble II</idno><idno type="stamp" n="INPG" p="UGA">Institut polytechnique de Grenoble</idno><idno type="stamp" n="INRIA-RHA">INRIA Grenoble - Rhône-Alpes</idno><idno type="stamp" n="SDE">Sciences De l'Environnement</idno><idno type="stamp" n="INRIA-LORRAINE">INRIA Nancy - Grand Est</idno><idno type="stamp" n="INRIA-NANCY-GRAND-EST">INRIA Nancy - Grand Est</idno><idno type="stamp" n="LORIA-ACGI" p="LORIA">Algorithmique, calcul, image et géométrie</idno><idno type="stamp" n="GIP-BE">GIP Bretagne Environnement</idno><idno type="stamp" n="UNIV-GRENOBLE1" p="UGA">Université Joseph Fourier - Grenoble I</idno><idno type="stamp" n="LORIA">LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications</idno><idno type="stamp" n="INRIA_TEST">INRIA - Institut National de Recherche en Informatique et en Automatique</idno><idno type="stamp" n="UNIV-LORRAINE">Université de Lorraine</idno><idno type="stamp" n="INRIA2">INRIA 2</idno><idno type="stamp" n="LORIA-ALGO-TEST5">LORIA-ALGO-TEST5 </idno><idno type="stamp" n="LORIA2">Publications du LORIA</idno><idno type="stamp" n="INRIA">INRIA - Institut National de Recherche en Informatique et en Automatique</idno></seriesStmt><notesStmt><note type="audience" n="2">International</note><note type="popular" n="0">No</note><note type="peer" n="1">Yes</note></notesStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Segmentation of tree seedling point clouds into elementary units</title><author role="aut"><persName><forename type="first">Franck</forename><surname>Hétroy-Wheeler</surname></persName><email>Franck.Hetroy@inria.fr</email><ptr type="url" target="http://morpheo.inrialpes.fr/people/hetroy/"></ptr><idno type="idHal">fhw</idno><idno type="halAuthorId">1197509</idno><orgName ref="#struct-89889"></orgName><affiliation ref="#struct-147723"></affiliation></author><author role="aut"><persName><forename type="first">Eric</forename><surname>Casella</surname></persName><email>eric.casella@forestry.gsi.gov.uk</email><ptr type="url" target="http://www.forestry.gov.uk/fr/INFD-6E8B4Y"></ptr><idno type="halAuthorId">1306567</idno><affiliation ref="#struct-220461"></affiliation></author><author role="aut"><persName><forename type="first">Dobrina</forename><surname>Boltcheva</surname></persName><email>dobrina.boltcheva@inria.fr</email><ptr type="url" target="http://www.loria.fr/~dboltche/"></ptr><idno type="halAuthorId">1306568</idno><affiliation ref="#struct-205118"></affiliation></author></analytic><monogr><idno type="halJournalId" status="VALID">14677</idno><idno type="issn">0143-1161</idno><idno type="eissn">1366-5901</idno><title level="j">International Journal of Remote Sensing</title><imprint><publisher>Taylor & Francis</publisher><date type="datePub">2016</date></imprint></monogr></biblStruct></sourceDesc><profileDesc><langUsage><language ident="en">English</language></langUsage><textClass><keywords scheme="author"><term xml:lang="en"> tree seedling</term><term xml:lang="en"> spectral clustering</term><term xml:lang="en"> segmentation</term><term xml:lang="en"> tLiDAR</term><term xml:lang="en"> 3D point cloud</term><term xml:lang="en">terrestrial laser scanning</term></keywords><classCode scheme="halDomain" n="info.info-cv">Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV]</classCode><classCode scheme="halDomain" n="sde">Environmental Sciences</classCode><classCode scheme="halTypology" n="ART">Journal articles</classCode></textClass><abstract xml:lang="en">This paper describes a new semi-automatic method to cluster TLS data into meaningful sets of points to extract plant components. The approach is designed for small plants with distinguishable branches and leaves, such as tree seedlings. It first creates a graph by connecting each point to its most relevant neighbours, then embeds the graph into a spectral space, and finally segments the embedding into clusters of points. The process can then be iterated on each cluster separately. The main idea underlying the approach is that the spectral embedding of the graph aligns the points along the shape's principal directions. A quantitative evaluation of the segmentation accuracy, as well as of leaf area estimates, is provided on a poplar seedling mock-up. It shows that the segmentation is robust with false positive and false negative rates around 1%. Qualitative results on four contrasting plant species with three different scan resolution levels each are also shown.</abstract><particDesc><org type="consortium">PlantScan3D</org></particDesc></profileDesc></hal></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Lorraine/explor/InforLorV4/Data/Hal/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 004444 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Hal/Corpus/biblio.hfd -nk 004444 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Lorraine
|area= InforLorV4
|flux= Hal
|étape= Corpus
|type= RBID
|clé= Hal:hal-01285419
|texte= Segmentation of tree seedling point clouds into elementary units
}}
| This area was generated with Dilib version V0.6.33. |  |