Laser Range Finder Scanning System For Tree Diameter And Circumference Measurement

Chan, Xin Zhi (2012) Laser Range Finder Scanning System For Tree Diameter And Circumference Measurement. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Many methods had been developed to measure the diameter of tree in order to calculate its circumference. Tree diameter and circumference measurement are important for Estate Company to determine tree growth and when it is available for tapping. Biltmore Sticks, Calipers, Diameter Tape, Relaskop, Wheeler’s Pentaprism, Wedge Prism and Criterion Laser 400 Dendrometer are popular dendrometers used for measuring diameter and circumference of tree. Nevertheless, these dendrometers have their weakness in the measurement process. Laser Range Finder is one of the laser sensors widely used by researchers for different purposes. This project is to develop an algorithm for tree diameter and circumference measurement using data recorded from Laser Range Finder with Graphic User Interface (GUI) environment. The newly developed measurement device is named Laser Metric. Experiments had been conducted by measuring tree to test the accuracy of Laser Metric when held with hand and fixed to the ground by varying distances. Graphs of accuracy versus distance are drawn to show the result of Laser Metric measurement capability.

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