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  1. Journal of Imaging
  2. Volume: 3
  3. Issue: 2
  4. Measuring Leaf Thickness with 3D Close-Up Laser Scanners: Possible or Not?
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Volume: 4
Volume: 3
Issue: 4
Issue: 3
Issue: 2
Measuring Leaf Thickness with 3D Close-Up Laser Scanners: Possible or Not?
Object Recognition in Aerial Images Using Convolutional Neural Networks
Memory Efficient VLSI Implementation of Real-Time Motion Detection System Using FPGA Platform
A Multi-Projector Calibration Method for Virtual Reality Simulators with Analytically Defined Screens
Real-Time FPGA-Based Object Tracker with Automatic Pan-Tilt Features for Smart Video Surveillance Systems
Depth Estimation for Lytro Images by Adaptive Window Matching on EPI
Tangent-Based Binary Image Abstraction
3D Reconstructions Using Unstabilized Video Footage from an Unmanned Aerial Vehicle
A Novel Vision-Based Classification System for Explosion Phenomena
An Overview of Infrared Remote Sensing of Volcanic Activity
Issue: 1
Volume: 2
Volume: 1

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Measuring Leaf Thickness with 3D Close-Up Laser Scanners: Possible or Not?

Content Provider MDPI
Author Dupuis, Jan Holst, Christoph Kuhlmann, Heiner
Abstract Measuring the 3D shape of plants for phenotyping purposes using active 3D laser scanning devices has become an important field of research. While the acquisition of stem and root structure is mostly straightforward, extensive and non-invasive measuring of the volumetric shape of leaves, i.e., the leaf thickness, is more challenging. Therefore, the purpose of this paper is to examine whether the leaf thickness is measurable using a high precision industrial laser scanning system. The study comprises a metrological investigation of the accuracy of the laser scanning system with regards to thickness measurements as well as experiments for leaf thickness measurements using several leaves of three different types of crop. The results indicate that although the measuring system is principally able to measure thicknesses of about 74 μ m with statistical certainty, the leaf thickness is not measurable accurately. The reason for this can be attributed to the measurable penetration depth of the laser scanner combined with the variation of the angle of incidence. These effects cause systematic uncertainties and significant variations of the derived leaf thickness.
File Size 31987712
File Format PDF
e-ISSN 2313433X
DOI 10.3390/jimaging3020022
Journal Journal of Imaging
Issue Number 2
Volume Number 3
Language English
Publisher Date 2017-06-15
Access Restriction Open
Subject Keyword plant phenotyping, leaf thickness close-up laser scanning coordinate measuring arm
Content Type Text
Resource Type Article
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