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Method of measuring plant morphology by adopting three-dimensional laser scanner way

A scanning method and three-dimensional laser technology, applied in the direction of optical devices, measuring devices, instruments, etc., can solve the problems of easily disturbed plant growth, measurement result interference, plant growth impact, etc., to achieve convenient storage and viewing at any time, and realize plant digitization , to reduce the effect of human influence

Active Publication Date: 2015-07-01
CHINA UNIV OF MINING & TECH (BEIJING)
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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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  • Method of measuring plant morphology by adopting three-dimensional laser scanner way
  • Method of measuring plant morphology by adopting three-dimensional laser scanner way
  • Method of measuring plant morphology by adopting three-dimensional laser scanner way

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0038] Before describing the present invention, the three-dimensional laser scanning technology used in the present invention will be briefly introduced. The 3D laser scanning technology uses a laser transmitter to continuously emit a laser beam, which is reflected by the target object and received by the sensor to analyze and calculate the precise point information of the measured object. Through such repeated data acquisition and processing processes, a high-density three-dimensional point cloud close to the surface of the measured object is obtained. Its ranging methods mainly include pulse method, phase method and triangulation method. The pulse method mainly calculates the position information of the object by measuring the propagation time of the laser beam between the laser tra...

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Abstract

The invention discloses a method of measuring plant morphology by adopting a three-dimensional laser scanner way. The method comprises the following steps: step 1, obtaining point cloud data of a plant by adopting the three-dimensional laser scanner way, and leading into a three-dimensional graphic software; step 2, processing the point cloud data to obtain a TIN (Triangular Irregular Network) model of the plant; step 3, converting a coordinate system so as to enable a Z shaft to be in the same direction with a stalk vertical direction of the plant; step 4, processing the TIN model of the plant in the three-dimensional graphic software, so as to obtain a morphological parameter of the plant. The method provided by the invention has the following beneficial effects of reducing manual influence by carrying out non-contact measurement on the plant morphology, so as to realize monitoring an in-situ dynamics of the plants, and realize the characteristics of high precision; furthermore, the morphological indexes, such as the cross sectional area of the stalks, the radius of curvature of blades, the angle of blades and the like which are difficult to obtain, can be obtained conveniently; in addition, the obtained data is of a digital format, so as to be convenient to store and examine at any time and realize plant digitization.

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...

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Application Information

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IPC IPC(8): G01B11/00G01B11/28G01B11/26G01B11/02G01B11/255
Inventor 毕银丽余海洋解文武秦亚非
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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