Method for Measuring Plant Morphology Using Three-Dimensional Laser Scanning

Abstract

The invention discloses a method for measuring the shape of a plant by using a three-dimensional laser scanning method, which includes the following steps: Step 1: Obtain point cloud data of the plant by using a three-dimensional laser scanning method, and import it into a three-dimensional graphics software; Step two: The point cloud data is processed to obtain the irregular triangular network model of the plant; step 3: transform the coordinate system so that the Z axis is in the same direction as the vertical direction of the stalk of the plant; The irregular triangular network model was processed to obtain the plant morphological parameters. The invention has the following beneficial effects: it can measure the shape of the plant without contact, reduce human influence, realize the in-situ dynamic monitoring of the plant, and has the characteristics of high precision; it can conveniently obtain the cross-sectional area of ​​the stem and the curvature of the leaf Radius, leaf angle and other morphological indicators that are difficult to obtain by manual methods; the obtained data are all in digital format, which is convenient to save and view at any time, realizing the digitization of plants.

Description

technical field [0001] The invention relates to a method for measuring plant shape parameters, in particular to a method for measuring plant shape by using a three-dimensional laser scanning method. Background technique [0002] In the fields of agronomy and biology, the external morphological structure of a plant is the expression of its internal physiological and biochemical reactions, so its three-dimensional morphological structure has always been one of the important contents of botany research. Maize is one of the three major crops in my country, and the study of its three-dimensional morphological structure has important practical significance. In traditional measurement, tools such as tape measure and protractor are used to obtain its three-dimensional shape and structure information manually. Not only the workload is heavy, the accuracy is low, the measurement factor is single, the measurement process is complicated, and it is easy to disturb the growth of plants. S...

AI Technical Summary

Problems solved by technology

In traditional measurement, tools such as tape measure and protractor are used to obtain its three-dimensional shape and structure information manually. Not only the workload is heavy, the accuracy is low, the measurement factor is single, the measurement process is complicated, and it is easy to disturb the growth of plants. Sometimes it needs to be measured in vitro. It affects the growth of plants, and the measurement results are more interfered by human factors

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