Measurement of truck volume by virtual reality projection matching

LI Peng-hui; SUN Wei; LI Da-jian; JIA Wei; LIU Hong-juan

doi:10.3788/OPE.20152313.0669

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Measurement of truck volume by virtual reality projection matching

更新时间：2020-08-13

- Measurement of truck volume by virtual reality projection matching
- Optics and Precision Engineering Vol. 23, Issue 10z, Pages: 668-675(2015)
- 作者机构：
  
  1. 西安电子科技大学空间科学与技术学院,陕西西安,710118
  2. 西北工业大学第365研究所, 陕西西安 710065
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152313.0669
  CLC： TB92;TP391.4
- Received：05 June 2015，
  
  Revised：21 June 2015，
  
  Published：14 November 2015
- 稿件说明：
移动端阅览
李鹏慧, 孙伟, 李大健等. 虚拟现实投影匹配的单幅图像卡车体积测量[J]. 光学精密工程, 2015,23(10z): 668-675

LI Peng-hui, SUN Wei, LI Da-jian etc. Measurement of truck volume by virtual reality projection matching[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 668-675
李鹏慧, 孙伟, 李大健等. 虚拟现实投影匹配的单幅图像卡车体积测量[J]. 光学精密工程, 2015,23(10z): 668-675 DOI： 10.3788/OPE.20152313.0669.

LI Peng-hui, SUN Wei, LI Da-jian etc. Measurement of truck volume by virtual reality projection matching[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 668-675 DOI： 10.3788/OPE.20152313.0669.

摘要

提出了一种单幅图像自动卡车体积测量方法

以降低卡车车厢体积的测量成本。该方法使用主动开关模型(ASM)算法定位目标特征点;利用卡车3D模型和相机的内部参数计算被测卡车所在地平面并建立目标成像的虚拟现实环境。然后

利用EPnP算法求解目标模型的初始位姿

并通过几何校正算法使卡车3D模型投影与被测卡车自动匹配。在地面方程和投影控制点匹配的约束下

本方法提出的虚拟现实环境中的卡车3D模型与被测卡车相同。最后

通过计算3D模型的体积得到了被测卡车的体积。实验结果表明:该方法通过单幅卡车图像即可自动测量出卡车的体积

系统结构简单

具有良好的实时性和可操作性

卡车车厢体积测量值和真实值的误差小于5%

很有实用价值。

Abstract

An automatic measurement method by using a single image is presented based on image processing to reduce the cost of truck's box volume measurement. The method locates feature points of a target with an Active Shape Model(ASM) algorithm and calculates the ground surface that the truck is placed and establishes virtual reality environments by using the camera's intrinsic parameters and a 3D model. Then

the truck's initial pose is estimated with EPnP algorithm

and a geometry correction algorithm is used to correct the geometry of the 3D model to match the truck automatically. Under the constraints of ground surface's equations and control points

the 3D model in a virtual reality enviroment is the same as the real truck. Finally

the truck's box volumes is figured out by calculating the 3D model's box volume. Experiment results show that the proposed method can measure the volume of the truck's box automatically with a single truck image and the error of truck's box volume is within 5%. The measuring system is simple

and has good real-time performance and important practical values.

关键词

Keywords

references

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Related Institution

School of Aerospace Science and Technology, Xidian University

The 365 Institute, Northwest Polytechnical University

Tsinghua Shenzhen International Graduate School， Tsinghua University

Faculty of Information Science and Engineering， Ningbo University

College of Information Engineering， College of Science and Technology Ningbo University

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