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Automated measurement of root length with a three-dimensional high-resolution scanner and image analysis

Titre :	Automated measurement of root length with a three-dimensional high-resolution scanner and image analysis Ajouter au panier
Titre de série :	Plant and soil, Vol 158 - n°1
Auteur(s) :	A.L. Smit, Auteur (et co-auteur) J.F.C.M. Sprangers, Auteur (et co-auteur) P.W. Sablik, Auteur (et co-auteur) J. Groenwold, Auteur (et co-auteur)
Type de document :	Tiré à part
Sujets :	Racine ; Plante herbacée ; Biométrie ; Automatisation
Résumé :	For measuring the length of root samples, the use of a three dimensional (3D) scanner is proposed to address the problem of a too low resolution. The scanner's high resolution (up to 354 pixels per cm) enables in the resulting grey-value image very thin roots (diameter 100 μm) to be segmented from the background by a simple thresholding operation. After skeletonizing, total length of the roots is calculated by multiplying the number of skeleton pixels by a correction factor. A comparison with the modified Newman Line-Intersect Method showed a correlation of r=0.98. Besides its superior resolution, an advantage of this type of scanner is its focusing depth, which allows root samples to be recorded on the scanbed similarly to a camera-oriented system
Date de publication :	1994
Format :	pp. 145-149 / graph., réf.
Langue(s) :	Anglais
Lien vers la notice :	https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=147309