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Browsing by Subject "root tree"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Automatyczny pomiar długości korzeni siewek pszenicy z hodowli hydroponicznej przy wykorzystaniu metod przetwarzania i analizy obrazów
    (Wydawnictwa AGH, 2009) Gocławski, Jarosław; Sekulska-Nalewajko, Joanna; Gajewska, Ewa Grażyna; Wielanek, Marzena Katarzyna
    In the paper an automatic method of length measurement has been presented for the roots of wheat from hydroponic culture, based on image processing and analysis. Evaluation of this feature of root systems is important for the estimation of plant tolerance to environmental factors influencing their productivity. In the proposed method simplified procedure of root preparation is applied and low-cost equipment is assumed consisting of typical scanner device and personal computer. The method includes root image segmentation in colour space, binary image skeletonization and then 3D trees topology reconstruction from 2D skeletons of all individual fibrous roots defined as 1. order roots. The analysis of tree data structures enables the reconstruction of axes of 1. order roots and their lateral branches in the image raster. Root lengths are calculated along these axes following cubic splines smoothing of their routes. The measurements of 1. order roots, carried out for the series of 10 images (about 50 roots) revealed only small differences from the results obtained with manual method - 1,94% in average.