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首页> 外文期刊>Computers and Electronics in Agriculture >Electrical impedance and image analysis methods in detecting and measuring Scots pine heartwood from a log end during tree harvesting
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Electrical impedance and image analysis methods in detecting and measuring Scots pine heartwood from a log end during tree harvesting

机译：在树收获期间检测和测量苏格兰杉木心材的电阻和图像分析方法

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摘要

Scots pine (Pinus sylvestris L.) heartwood is naturally durable wood material which has not been fully utilized in the wood industry. Currently, there are no practical measurement methods for detecting and measuring heartwood in a tree harvesting. The objective of this study was to evaluate the applicability of an electrical impedance spectroscopy and an image analysis of a log end face for pine heartwood measurements from the harvesting perspective. Both methods were tested with a fresh wood material which was collected during the harvesting operations. The results indicate that both methods have potential to measure the heartwood from processed stems with an average heartwood diameter error being less than two centimeters for each method. However, the image analysis of the log end face is only appropriate when visible contrast between the heartwood and a sapwood exists. Our findings indicate that the studied heartwood detection methods show great potential in measuring the heartwood of the stem in the harvesting phase which would ideally benefit later links in wood value chains.
机译：Scots Pine（Pinus Sylvestris L.）Ceartwood是天然耐用的木材，尚未在木业中充分利用。目前，在树收获中没有用于检测和测量心材的实用测量方法。本研究的目的是评估电阻抗光谱的适用性以及从收集的角度来看杉木心材测量的日志端面的图像分析。通过在收获操作期间收集的新鲜木材测试两种方法。结果表明，两种方法都有可能测量从加工茎的心脏，平均心材直径误差小于每种方法的2厘米。然而，日志端面的图像分析仅适用于心材和Sapwood之间的可见对比时。我们的研究结果表明，学习的心材检测方法显示出在收获阶段测量茎的心材的巨大潜力，这将理想地利用木材价值链中的链接。

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