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Tree measurement method based on intelligent terminal lens

A technology of intelligent terminal and measurement method, applied in measurement devices, instruments, optical devices, etc., can solve the problems of difficult operation, complicated trouble, low efficiency, etc., and achieve the effect of fast measurement

Active Publication Date: 2017-11-14
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to overcome the shortcomings of difficult operation, low efficiency and complicated troubles of using tape measures or large-scale measuring instruments in the past, and realize the tree measurement method based on intelligent terminals with the advantages of high efficiency, easy portability and high precision. The present invention proposes By combining technologies such as computer vision, mathematical geometry model, camera calibration and orthogonal test analysis, the measurement model of tree height, diameter at breast height and crown width is developed, which is used for the measurement of tree information in garden management, and provides a tool for tree information collection and management. advanced means and tools

Method used

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  • Tree measurement method based on intelligent terminal lens
  • Tree measurement method based on intelligent terminal lens
  • Tree measurement method based on intelligent terminal lens

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Embodiment Construction

[0027] The present embodiment is described in detail below in conjunction with accompanying drawing:

[0028] (1) Use the smart terminal as a tool to measure tree height, diameter at breast height and crown width. Use the designed software to control the camera to take pictures or import the pictures stored in the terminal, then use the touch screen pen to select the tree coordinates in the image, and measure the tree information through model calculation.

[0029] (2) First select the level ground. When the shooting height of the smart terminal lens is 1.5 meters and the shooting angle is 90 degrees, the best distance is that the trees are completely in the screen. Take pictures of the trees and take good photos through camera calibration technology. Distortion correction, avoid radial distortion and barrel distortion, improve measurement accuracy.

[0030] (3) Use the touch screen pen to click on the tree top and bottom of the collected tree pictures to obtain the tree coor...

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Abstract

The tree measurement method based on the intelligent terminal lens, the main purpose of the present invention is to overcome the disadvantages of uneasy operation, low efficiency and complicated troubles of using tape measures or large measuring instruments in the past to obtain the best shooting environment, and provide a basis for improving the accuracy of data Valuable guidance. The present invention proposes to develop tree height, diameter at breast height and crown width measurement models by combining technologies such as computer vision, mathematical geometry model, camera calibration and orthogonal test analysis, which are used for the measurement of tree information in garden management, and provide information collection and Management provides an advanced means and tools.

Description

technical field [0001] The present invention realizes the measurement of tree growth information (tree height, diameter at breast height, and crown width information) by using a model to take pictures of trees to be measured through an intelligent terminal lens on a horizontal ground. Background technique [0002] The collection of forest information is the basis of forest resources investigation and forestry visualization, and it is a complex and arduous task. With the development of computer and other modern technologies, there are more methods, more advanced technology, higher efficiency and accuracy of forest information collection. In order to measure tree height, tree crown, diameter at breast height, etc., traditional methods mainly use measurement tools such as girth or calipers, and manual reading and recording of measurement data is required. This will undoubtedly consume a lot of manpower and financial resources, and the degree of automation is low and the accura...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01B11/02G01B11/08
Inventor 王波涛宋江雪
Owner BEIJING UNIV OF TECH
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