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Computer Reconstruction of Plant Growth and Chlorophyll Fluorescence Emission in Three Spatial Dimensions
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SYSNO ASEP 0388802 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Computer Reconstruction of Plant Growth and Chlorophyll Fluorescence Emission in Three Spatial Dimensions Author(s) Bellasio, Ch. (IT)
Olejníčková, Julie (UEK-B) RID, SAI
Tesař, R. (CZ)
Šebela, David (UEK-B) RID, SAI
Nedbal, Ladislav (UEK-B)Source Title Sensors. - : MDPI
Roč. 12, č. 1 (2012), s. 1052-1071Number of pages 20 s. Language eng - English Country CH - Switzerland Keywords 3D reconstruction ; chlorophyll fluorescence imaging ; leaf area ; leaf angle ; plant growth ; coded light Subject RIV EH - Ecology, Behaviour R&D Projects GA522/09/1565 GA ČR - Czech Science Foundation (CSF) ED1.1.00/02.0073 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support RVO:67179843 - RVO:67179843 UT WOS 000299537100056 DOI 10.3390/s120101052 Annotation Plant leaves grow and change their orientation as well their emission of chlorophyll fluorescence in time. All these dynamic plant properties can be semi-automatically monitored by a 3D imaging system that generates plant models by the method of coded light illumination, fluorescence imaging and computer 3D reconstruction. Here, we describe the essentials of the method, as well as the system hardware. We show that the technique can reconstruct, with a high fidelity, the leaf size, the leaf angle and the plant height. The method fails with wilted plants when leaves overlap obscuring their true area. This effect, naturally, also interferes when the method is applied to measure plant growth under water stress. The method is, however, very potent in capturing the plant dynamics under mild stress and without stress. The 3D reconstruction is also highly effective in correcting geometrical factors that distort measurements of chlorophyll fluorescence emission of naturally positioned plant leaves. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2013
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