Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Standing tree height measuring method based on monocular vision

A technology of height measurement and monocular vision, which is applied in the direction of measuring devices, mechanical measuring devices, instruments, etc., can solve the problems of time-consuming, complicated calculation of tree height measurement, and inability to detect the height of standing trees quickly and conveniently, achieving less time-consuming, The effect of convenient equipment integration and high degree of automation

Inactive Publication Date: 2020-01-10
ZHEJIANG FORESTRY UNIVERSITY
View PDF9 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly solves the problems of complex computation and time-consuming tree height measurement in the prior art, and cannot quickly and conveniently detect the height of standing trees, and provides a method for measuring the height of standing trees based on monocular vision

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Standing tree height measuring method based on monocular vision
  • Standing tree height measuring method based on monocular vision
  • Standing tree height measuring method based on monocular vision

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0062] This embodiment is a method for measuring the height of a standing tree based on monocular vision, specifically a method for measuring the height of a standing tree with the help of a smart phone combined with machine vision technology. The smart phone has a camera and a high-precision gyroscope. Methods The GraphCut algorithm is used to segment the standing tree image to realize the automatic acquisition of the height pixels of the standing tree in the standing tree image, and then the depth information of the standing tree image is automatically obtained through the geometric similarity model, and then the angle information of the built-in gyroscope of the mobile phone and the height information of the mobile phone shooting are extracted to solve the problem. It provides a set of new measurement methods and technical means for forest resource investigation.

[0063] The specific steps of the method of this embodiment include:

[0064] S1. Calibrate the camera and obta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a standing tree height measuring method based on monocular vision. The problems that existing tree height measurement has complex operation and large consumed time and the standing tree height cannot be rapidly and conveniently detected are solved. The method comprises the following steps of calibrating a camera, acquiring internal parameters of the camera, performing standing tree contour extraction on an input image, establishing a geometric model of the distance between an image coordinate system and a world coordinate system, acquiring a standing tree image depth relational expression, establishing a height pixel coordinate mapping model, acquiring a to-be-measured target height relational expression, and calculating a standing tree height according to the shooting height and angle of the camera. The method has low measurement cost and high working efficiency, only an existing smart phone needs to be adopted, only the shooting angle and the shooting height need to be obtained, and operation is more convenient and faster. Moreover, the measurement method does not need complex operation, less time is consumed, the algorithm precision is high, the automation degree is high, and the operation is simple.

Description

technical field [0001] The invention relates to the technical scope of tree detection, in particular to a method for measuring the height of standing trees based on monocular vision. Background technique [0002] Tree height is one of the important symbols to evaluate the quality of standing trees and the growth status of trees, and it has become a necessary work in forest resources investigation. Tree measurement tools and their algorithms are the basic way to obtain basic tree measurement factors, their accuracy and practicability are extremely important, and their modernization level also reflects the forestry modernization level [5] . At present, mainstream altimetry instruments, such as the Brewles altimeter [6] Because of its low price, simple operation, and ability to meet the requirements of general accuracy, it is widely used, but it is limited by the need to measure horizontal distances, and it is easily affected by occlusion in actual forest measurement. 3D las...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/06
CPCG01B5/0035G01B11/0608
Inventor 徐爱俊陈相武
Owner ZHEJIANG FORESTRY UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com