منابع مشابه
Volume interpolation of CT images from tree trunks.
Computerized tomography as a non-destructive scanning method to analyze wood structures has become an important technique in tree research. The possibility to reconstruct three-dimensional volumes based on a number of slices of two-dimensional data from CT scans is strongly dependent on the number of measured slices. Radial basis function methods can be successfully used to interpolate CT image...
متن کاملApplication of Ground-Penetrating Radar for Detecting Internal Anomalies in Tree Trunks with Irregular Contours
To assess the health conditions of tree trunks, it is necessary to estimate the layers and anomalies of their internal structure. The main objective of this paper is to investigate the internal part of tree trunks considering their irregular contour. In this respect, we used ground penetrating radar (GPR) for non-invasive detection of defects and deteriorations in living trees trunks. The Hilbe...
متن کاملAutomated quantification of distributed landslide movement using circular tree trunks extracted from terrestrial laser scan data
This manuscript presents a novel algorithm to automatically detect landslide movement in a forested area using displacements of tree trunks distributed across the landslide surveyed repeatedly using terrestrial laser scanning (TLS). Common landslide monitoring techniques include: inclinometers, global position system (GPS), and interferometric synthetic aperture radar (InSAR). While these techn...
متن کاملGround Water Chlorinated Ethenes in Tree Trunks: Case Studies, Influence of Recharge, and Potential Degradation Mechanism
Introduction Ground water constituents in tree trunks have been examined for a variety of applications. Inorganic constituents in tree cores have been examined as an aid to investigating solvent dechlorination (Yanosky et al. 2001) and as a tool for examining the history of ground water contamination (Vroblesky and Yanosky 1990; Yanosky and Vroblesky 1992, 1995; Vroblesky et al. 1992). A variet...
متن کاملA Feasibility Study on the Measurement of Tree Trunks in Forests Using Multi-scale Vertical Images
The determination of the Diameter at Breast Height (DBH) is an important variable that contributes to several studies on forest, e.g., environmental monitoring, tree growth, volume of wood, and biomass estimation. This paper presents a preliminary technique for the measurement of tree trunks using terrestrial images collected with a panoramic camera in nadir view. A multi-scale model is generat...
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ژورنال
عنوان ژورنال: Science
سال: 1896
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.3.64.442