西安交通大学机械工程学院导师教师师资介绍简介-梁晋

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梁晋的个人主页空间 - 梁晋联系方式

梁晋, 教授,博士生导师
电话：-8213，
邮箱：liangjin@mail.xjtu.edu.cn
个人网站：liangjin.gr.xjtu.edu.cn
合作研究网站：新拓三维www.xtop3d.cnn 奥比中光 www.orbbec.com.cn
单位：西安交通大学机械工程学院先进制造技术研究所
地址：陕西省西安市咸宁西路28号西安交通大学机械工程学院
邮编：710049
Liang Jin ，Professor
Institute of advanced manufacture Technology,
School of Mechanical Engineering , Xi’an Jiaotong University
No.28, Xianning Road , Xi’an ,Shaanxi province,China ,
PostCode:710049
Email: liangjin@mail.xjtu.edu.cn
Homepage:www.xtop3d.cn liangjin.gr.xjtu.edu.cn

基本信息
梁晋，男，1968年生，现工作于西安交通大学机械工程学院，从事机器视觉、图像处理、变形测量跨学科研究。
成果：获得2013年国家科学技术奖（技术发明）二等奖1项（第一完成人），2011年陕西省科技进步一等奖1项（第一完成人）、2006年陕西省科技进步二等奖1项（第一完成人），发表SCI/EI论文40多篇，授权发明专利10多项（第一完成人），出版著作10多本，主持制定国家标准1项。
科研情况：主持10多项国家级项目，包括863项目、国家自然科学基金、国家重大/重点项目。
学习经历：1986年-1990年西安交通大学自动控制专业（本科），1990年-1993年西安交通大学机械学院焊接专业（硕士研究生），1996年-2001西安交通大学电信学院控制科学专业（博士研究生）
本课题组硕士/博士研究生的研究方向：
（1）机器视觉研究：研究机器人的视觉定位、处理、分析等技术；
（2）图像处理研究：研究二维、三维图像的算法和处理技术；
（3）图像三维重建研究：研究二维图像重建三维信息；
（4）运动和姿态测量研究：研究物体三维运动和多自由度姿态测量；
（5）变形和应变测量研究；通过图像实现三维全场变形和应变测量；
（6）深度学习算法研究：研究神经网络和深度学习的算法和处理技术；
本课题组的研究成果已经形成具有世界领先水平的技术和产品，为研究生的研究提供了坚实的实习平台：
奥比中光 www.orbbec.com.cn 新拓三维 www.xtop3d.cn

我的新闻
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研究生招生 - 梁晋团队成员
欢迎报考硕士/博士研究生
硕士/博士研究生的研究方向：
（1）机器视觉研究：研究机器人的视觉定位、处理、分析等技术；
（2）图像处理研究：研究二维、三维图像的算法和处理技术；
（3）图像三维重建研究：研究二维图像重建三维信息；
（4）运动和姿态测量研究：研究物体三维运动和多自由度姿态测量；
（5）变形和应变测量研究；通过图像实现三维全场变形和应变测量；
（6）深度学习算法研究：研究神经网络和深度学习的算法和处理技术；

本团队属于跨学科研究，招收多学科专业的研究生。欢迎计算机、图像处理、自动控制、机械、材料、力学等专业的学生报考硕士和博士研究生！（研究生报名填表时请务必写明导师姓名，否则无法录取！）

本课题组的研究成果已经形成具有世界领先水平的技术和产品，为研究生的研究提供了坚实的实习平台：
奥比中光www.orbbec.com.cn 新拓三维www.xtop3d.cn

硕士招生学科：
58(全日制)机器视觉与三维全场测试技术（080200 机械工程）
67(全日制)机器视觉与智能制造（080200 机械工程）
24(全日制)三维摄影全场变形应变检测分析（080400 仪器科学与技术）
11(全日制)机器视觉的高效高精度检测技术（080400 仪器科学与技术）
18(全日制)机器视觉与三维测量技术（080400 仪器科学与技术）
博士招生学科：
51(全日制)机器视觉与三维全场测试技术（080200 机械工程）
20(全日制)机器人智能控制理论与技术（080200 机械工程）
11(全日制)机器视觉的高效高精度检测技术（080400 仪器科学与技术）
18(全日制)机器视觉与三维测量技术（080400 仪器科学与技术）
25(全日制)三维摄影全场变形应变检测分析（080400 仪器科学与技术）

机器视觉 - 梁晋主要任职

机器人3D视觉
服务机器人快速识别人脸、距离感知、活体检测、多模态联动，更加人性化，与人类更好的互动
医疗机器人辅助医生临床诊断，实时监测病人身体状况，分析病人行为动
作

工业机器人3D传感采集丰富视觉信息，联动AI人工智能技术，让工业机器人更灵活、更智能，效率更高
特种机器人可提供三维地图创建、避障、导航、定位等多种功能，代替人类完成各类高难度任务

适应性强黑夜可用，可捕捉动态表情，可识别面部、妆容改变
防伪性强活体检测，完全杜绝照片与视频攻击

应用性广

可广泛应用于刷脸支付、安防安检等领域

方案优势
180°超大水平视角环境地图一次性创建

45°垂直视角地面凸起，下穿桌角，避障不再乱撞

前置超声探测让机器人看到透明玻璃

红外近距传感消除探测盲区

数字图像相关法DIC全场应变 - 梁晋教育经历

XJTUDIC三维数字散斑动态应变测量分析系统

三维、快速、高精度、非接触式三维全场变形和应变测量分析

XJTUDIC 3D full field deformation and strain measurement system
3D Digital Image Correlation, 3D-DIC （视频演示）

系统特点：

快速获得全场的三维坐标、位移、应变数据
测量结果三维显示。各种强大的分析功能
非接触测量，适用于各种材料
快速、简单、高精度的系统标定
测量幅面可选：从几个微米到几十米的范围
应变测量范围：从0.01%到1000%的范围
灵活易用的触发功能，丰富的外部软硬件接口
图像采集频率可选择：低速（0-20 fps), 中速（20-100 fps）高速（100-500 fps）超高速(500-50000 fps)
相机分辨率可选：100万像素，200万像素，500万像素，800万像素，1000万像素
系统软件可运行在Windows 32位和64位操作系统，支持多核多线程处理，计算速度更快

应用领域：
材料试验（杨氏模量、泊松比、苄缘牟问阅埽?BR>?零部件试验（测量位移、应变）
生物力学（骨骼、肌肉、血管等）
微观形貌、应变分析（微米级、纳米级）
断裂力学性能
有限元分析（FEA）验证
高速变形测量（动态测量、瞬态测量）
动态应变测量，如疲劳试验
成形极限曲线FLC测定

测量原理?

XJTUDIC 系统结合数字图像相关技术（DIC）与双目立体视觉技术，通过追踪物体表面的散斑图像，实现变形过程中物体表面的三维坐标、位移及应变的测量，具有便携，速度快，精度高，易操作等特点。

散斑追踪过程

操作方便:
采用基于摄影测量技术的相机标定技术，针对不同幅面的测量范围，可以快速、方便地实现系统的高精度标定。配备的升降架，使得测量系统的操作变得非常轻松。各种不同类型的光源为不同环境下的测量提供良好的照明条件。多功能的控制箱提供了各种A/D采集，D/A输出及相机触发功能。

软件界面友好:
(1)同时支持二维及三维变形测量
(2)灵活的相机标定，支持使用外部图像标定
(3)提供灵活、方便的图像采集参数设置，满足不同情况下的图像采集需求
(4)自由选取感兴趣的目标范围，提高处理效率。自由设置散斑面片的大小及步长，满足用户对不同精度和分辨率
(5)强大的应变计算功能，提供18种不同类型的变形、应变结果。
(6)计算结果三维显示，灵活的三维显示控制
(7)多种后处理功能，包括插值补洞，平滑等。
(8)坐标转换功能
(9)多种分析功能，包括截线、状态点及点对等。
(10)曲线绘制功能
(11)测量结果及分析结果输出成报表
(12)测量结果、图片及曲线合成视频

科研进展 - 梁晋我的新闻
国内首台管件光学3D检测设备发布为汽车航空航天领域提供解决方案
2019-07-05

本课题组的研究成果已经形成具有世界领先水平的技术和产品，为研究生的研究提供了坚实的实习平台。
2019-06-18

指导研究生获得金奖：第二届中国“互联网+”大学生创新创业大赛全国总决赛
2016-10-14

指导的研究生荣膺冠军:第二届中国“互联网+”大学生创新创业大赛陕西赛区
2016-09-05

板料热成形三维全场应变检测试验机
2015-03-11

自主研制的弯管在线三维检测系统实现批量出口
2015-03-10

更多新闻>>

科研产品 - 梁晋荣誉称号
产品和项目

成果论文专利 - 梁晋招生信息
一、获奖：

2013年度国家科学技术奖（国家技术发明奖）二等奖（第一完成人），复杂工况三维全场动态变形检测技术

2011年度陕西省科学技术奖一等奖（第一完成人），基于工业近景摄影测量的系列三维轮廓坐标与变形应变快速检测系统，证书编号：2011-1-21-D1；.
2011年度陕西高等学校科学技术奖一等奖（第一完成人），基于工业近景摄影测量的系列三维轮廓坐标与变形应变快速检测系统，编号：2011-E06
2006年10月，陕西省科学技术二等奖（第一完成人），项目：基于北斗卫星的广域空间远程设备监控技术和设备技术，证书号：06-2-004-R1

二、专利：
在工业三维摄影测量和变形应变检测领域，获得了多项国家发明专利。获得的发明专利涉及多项创新技术：三维数字图像相关法全场应变测量方法、三维测量的相机成像系统多相机多测量幅面的自标定方法、工业摄影测量与三维光学面扫描的集成测量方法、大尺寸工件的静态三维变形检测方法、动态三维变形检测方法等。

三、主持制定国家标准：
国家标准“锻压制件及其模具三维几何量光学检测规范 Measurement specification of optical 3D geometry for forgings /stampings and the dies”。国标编号：GB/T 25134-2010 实施日期：2011-2-01

.
四、发表论文
SCI收录期刊：
[1]Bao-Quan Shi a,∗, Jin Liang a, Qing Liu，Adaptive simplification of point cloud using k-means clustering，Computer-Aided Design，（SCI收录UT:008）
[2]Shi BQ, Liang J, Xiao ZZ, et al, Deformation measurement method for spatial complex tubular joints based on photogrammetry, Optical Engineering 49(12), 123604 (December 2010)，123604-1～123604-13（SCI收录 UT ISI:010）
[3]Tang ZZ, Liang J, Xiao ZZ, et al. Three-dimensional digital image correlation system for deformation measurement in experimental mechanics，OPTICAL ENGINEERING vol49 No10 文献编号: 103601 , 出版年: OCT 2010（SCI收录UT ISI:010）
[4]Xiao ZZ, Liang J, Yu DH, et al. An accurate stereo vision system using cross-shaped target self-calibration method based on photogrammetry，OPTICS AND LASERS IN ENGINEERING 卷: 48 期: 12 页: 1252-1261 出版年: DEC 2010页: 1252-1261 （SCI收录UT ISI:016）
[5]Zhenzhong Xiao,Jin Liang,Dehong Yu, et al. Rapid Three-dimension Optical Deformation Measurement for Transmission Tower with Different Loads [J]. Optics and Lasers in Engineering, UK., 48 (2010) 出版年: SEP 2010 869–876（SCI收录620XZ，UT ISI:007 ,)
[6]Xiao ZZ, Jin L, Yu DH, et al. A Cross-Target-based Accurate Calibration Method of Binocular Stereo Systems with Large-scale Field-of-View [J]. Measurement,UK., Volume 43, Issue 6, July 2010, Pages 747-754 .( SCI收录602UZ, UT ISI:004，， EI收录Accession number: 675)
[7]De-hai ZHANG,Jin LIANG,Cheng GUO,Jian-wei LIU,Xiao-qiang ZHANG,Zhi-xin CHEN，Exploitation of Photogrammetry Measurement System ，optical engineering，Vol. 49, No. 03，2010.3（SCI收录586RW ，UT ISI:023）
[8]Jian-Wei Liu Jin Liang Xin-He Liang Zheng-Zong Tang，Videogrammetric system for dynamic deformation measurement during metal sheet welding processes，optical engineering，Vol. 49, No. 03，2010.3（SCI收录586RW，UT ISI:001， EI收录Accession number: 708）
[9]S.L. Zang, J. Liang, C. Guo,A constitutive model for spring-back prediction in which the change of Young’s modulus with plastic deformation is considered,International Journal of Machine Tools & Manufacture 47 (SEP 2007) 1791–1797 (SCI 收录199CE， UT ISI:016 )
论文下载：
A four-camera videogrammetric system for 3-D motion.pdf 2,105.6k
Application of the speckle technique for three-dimensional deformation measurement JOE013604.pdf 2,580.0k
Deformation measurement method for spatial complex tubular joints based on photogrammetry.pdf 1,617.0k
Experimental Investigations on Anisotropic Evolution of 304 腾来71_1.pdf 1,166.1k
Fast and effective integration of multiple.pdf 2,699.0k
Precision control of scale using in Industrial Close-Range Photogrammetry.pdf 471.0k
Three-dimensional digital image correlation system for deformation measurement in experimental mechanics.pdf 1,201.9k
Videogrammetric system for dynamic deformation measurement during metal sheet welding processesJOE033601.pdf 568.8k
zsl 基于散斑应变测量的薄板各向异性力学性能研究science_paper_online09142.pdf 721.9k
基于摄影测量的车身冲模实型白模的精度检测湖北汽车工业学院学报.pdf 1,068.0k
基于散斑应变测量法的薄板各向异性力学性能研究11-0110-张阳.pdf 533.4k
基于约束搜索球的点云数据与CAD模型精确比对检测.pdf 782.5k
基于自适应最优邻域的散乱点云降噪技术研究.pdf 514.1k
基于逆向工程的汽车覆盖件CAD建模技术研究.pdf 359.1k
外差式多频相移技术的三维光学点云测量研究《锻压技术》.pdf 543.5k
大变形测量数字图像的种子点匹配方法.pdf 685.3k
大型水轮机叶片快速检测的新方法光电工程.pdf 1,950.5k
大型飞机三维光学快速测量建模关键技术研究中国机械工程.pdf 354.9k
大型飞机风洞变形测量的相机标定研究西安交通大学学报.pdf 352.9k
大视场多像机视频测量系统的全局标定.pdf 2,167.6k
散乱点云的补偿滤波.pdf 358.9k
数字图像相关法测量金属薄板焊接的全场变形.pdf 3,241.9k
数字散斑相关法在变形测量中的应用.pdf 4,905.0k
板料成形三维全场应变摄影测量快速检测系统研究.pdf 2,069.7k
汽车模具泡沫实型的三维光学快速检测研究《锻压技术》.pdf 585.0k
法向约束的多幅点云数据融合算法西安交通大学学报.pdf 397.6k
特征保持的点云精简技术研究.pdf 704.5k
用于三维变形测量的数字图像相关系统.pdf 1,121.4k

Digital Image Correlation - 梁晋(5.)Scientific Research

XJTUDIC 3D full field deformation and strain measurement system

Application Fields
?Material testing(Displacement, Strain, Youngs Modulus, Poisson Ratios)
?Component testing(Displacement, Strain)
? Biomechanics (bone, muscle, blood vessels, etc.)
?Microscope surface and strain measurement
?Fracture mechanics
?FEA validation
?High speed measurement & Vibration analysis
?Failure investigation
?FLC determination
System Features
?3D surface coordinates, 3D surface displacement & surfaces strain
?3D display of measured values
?Applicable to any material
?Fast, easy and accurate calibration
?Flexible measurement range: mm2 to m2
?Strain measuring range: 0.01% up to several 100%
?Flexible and easy to use trigger function
?Frame Rate￡o0-12Hz, 24Hz, 480Hz, 960 Hz
Principle of XJTUDIC
XJTUDIC combines stereo vision with digital image correlation. It can measure the 3D coordinates, 3D displacement and surface strain of object by tracking the speckle image of the object surface in the deformation process. XJTUDIC system is portable, fast, high precision and easy to use.
Speckle tracking process
Easy operation
The system calibration base on photogrammetry is fast, accurate and can adapt to different measurement area. With the lifting frame, one can operate the system easily. Different type of light source can provide well illumination condition. Multi- function control box provides variety of A/D acquisition, D/A out, and camera triggering.

Calibration panels for different measuring range

Lifting frame Control box
Friendly software interface
(1)Supports both 2D and 3D measurement
(2)Flexible camera calibration, and external image series also applicable
(3)Different image acquisition mode
(4)Area of interest, facet size, and step length is adjustable.
(5)18 types of deformation and strain measurement results can be obtained.
(6)3D display of measured results.
(7)Different kinds of post-processing function, including filter, interpolation and so on.
(8)Coordinates transformation function.
(9)Results analysis tools, including section, stage point, point couple, and curving, etc.
(10)Reporting function
(11)Export movie

Software interface
Material property testing
XJTUDIC system can provide the characterization of material parameters far into the range of plastic deformation. Its powerful data analysis tools allow the determination of the local and amplitude of maximum strain, which are important functions in material testing.

Experiment setup Stain distribution of steel

Isolines of strain FLD

Major strain of aluminum Isolines of strain
Titanium alloy compress test
The titanium alloy sample is 5mm high and its diameter is 3mm. Universal testing machine is used to compress the sample, and XJTUDIC is used to measure the specimen deformation of the whole process.

Application of XJTUDIC in wood mechanics
Experiment content
(1)To get the Youngs modulus and Poissons ratio of wood by compression test
(2)To get the deformation field information of wood in the three points bending test

Displacement field & ?x strain field in compression test

Displacement field in three point bending test
?x strain field in three point bending test
Measured result
Youngs modulus: 14.77GPa
Youngs modulus: 0.7817
Fracture mechanics
XJTUDIC system is also an ideal solution for fracture mechanics investigation. The full-field measurement deliver exact information about local and global strain distribution, crack growth, and can be used for the determination of important fracture mechanics parameters.

Fracture growth image

Strain distribution in the fracture process
Large measuring volume application
The measuring area of XJTUDIC can vary from several mm2 to several m2. For large measuring area situation, the spray stencil is used to create the point pattern.

Spray stencil Specimen with created point pattern

Experiment setup Measured result
Application of XJTUDIC in civil engineering
The deformation and flow characteristic of sand is a research focus in civil engineering, however can?ˉt be measured easily using traditional method. XJTUDIC which is a non-contacting optical system is ideal for the investigation of sand characteristics.
Technical data

System configuration
XJTUDIC-1M-15- TC
XJTUDIC-1.4M-15- RS
XJTUDIC-2M- ET

Frame Rate
15 fps
15 fps
14 fps

Camera Resolution
0.8~1.4M pixel
1.4M pixels
2 M pixels

Measuring Range
Several mm² to several m²
Several mm² to several m²
Several mm² to several m²

Strain Measuring Range
0.03% up to >200%
0.03% up to >200%
0.03% up to >200%

Strain Measuring Accuracy
up to 0.02%
up to 0.02%
up to 0.02%

System configuration
XJTUDIC-1M-120- BHS
XJTUDIC-5M-15- HR
IC-4M-60- HRS

Frame Rate
120 fps
7??15 fps
60 fps

Camera Resolution
1M pixel
5M pixel
4M pixel

Measuring Range
Several mm² to several m²
Several mm² to several m²
Several mm² to several m²

Strain Measuring Range
0.01% up to >200%
0.01% up to >200%
0.01% up to >200%

Strain Measuring Accuracy
up to 0.01%
up to 0.01%
up to 0.01%

System configuration
XJTUDIC-1M-500- HS
XJTUDIC-1M-5000- SHS

Frame Rate
500 fps
5000 fps

Camera Resolution
1M pixel
1M pixel

Measuring Range
500 fps
5000 fps

Strain Measuring Range
0.01% up to >200%
0.01% up to >200%

Strain Measuring Accuracy
up to 0.01%
up to 0.01%

Institute of Metal Forming And Die & Mould Technology
Institute of information & Mechatronics Research
School of Mechanical Engineering
Xi'an Jiaotong University,
No.28, Xianning Road ,Xi'an ,Shaanxi province,China,PostCode:710049
TEL￡o86-,technology ,**, **-807
Email:xjtuom@263.net WEB: www.xjtudic.com

(7.)Contact

Liang Jin ，Professor
Institute of Metal Forming And Die & Mould Technology
School of Mechanical Engineering , Xi’an Jiaotong University
No.28, Xianning Road , Xi’an ,Shaanxi province,China ,
PostCode:710049
Email: liangjin@mail.xjtu.edu.cn
Homepage: www.xjtudic.com
liangjin.gr.xjtu.edu.cn

(4.)Honors
Video Demo:
XJTUDIC,XJTUSD,XJTUDA,XJTUSM

1. XJTUDIC:
3D full field strain measurement
3D digital image correlation method
Thinning Displacement E
Maximum principal strain

XJTUDICsystemCalculation steps
Three-dimensional interpolation pointsThree-dimensional display

Report OutputPoint function

Two-dimensional displayAnalysis

Information on a variety of deformationNew Project

Open - SaveTransversal functionNew Project

State pointAdvanced Measurement

Titanium compression test 1Titanium compression test 2

Strain compression tests of wood
2.XJTUSD:
3D static deformation

Step large deformationLarge deformation of large structural parts video

Large structural parts of large deformation static deformation VideoXJTUSD

3. XJTUDA:
3D dynamic deformation and motion analysis

Dynamic deformationPoint tracking codeDynamic deformationTracking non-coding point
Welding deformation measurement
4. XJTUSM:
sheet metal grid strain analysis

sheet metal grid strain sheet stretched
5. VIDEO: XJTUDP industrial close-range photogrammetry system

Industrial close-range photogrammetry and CAD model comparison test
6. XJTUOM 3D optical surface scanning and point cloud processing and CAD model comparison test

Impeller scanning Parts scanning

Car Door scanning scanning point cloud integration

3D scanning calibration XJTUOM INSPECTOR

New Page - 梁晋(1.)Basic Information
Based on Industry Digital Close Range Photogrammetry Technology
Series of3Dmeasurement and full field deformation strain analysis system

全场应变
成形极限
体积内变形
静态变形
动态变形
板料成形
显微应变

面扫描
摄影测量
小幅面
点云比对
标定
实时
点云处理

full field strain, static deformation, dynamic deformation ,sheet metal forming,3D scanner, photogrammetry, point cloud processing
3D full field deformation and strain measurement
Three-dimensional digital image correlation (DIC) full filel strain measurement
Welcomed the cooperation of Interdisciplinary collaborative research experiment
Mechanics, fracture mechanics, civil engineering, biomechanics, micro-nano, the new material properties

Since 2007,3D full-fieldstrain measurement based on digital image correlation method (DIC) , has been explosive development and application [see STRAIN Journal editorial in 2008], widely used in research in various disciplines, such as material mechanics , biomechanics, fracture mechanics, micro-nano-strain measurement, macroscopic large deformation measurement, performance testing of new materials.
Welcome to universities and research institutes, based on digital image correlation method "XJTUDIC dynamic three-dimensional digital speckle strain measurement and analysis system" cross-disciplinary research, cooperation, experimental three-dimensional audience response.
With the popularity of a variety of numerical simulation software, three-dimensional deformation and strain measurement in the more urgent. Various numerical simulation results with the actual situation there is a deviation, an urgent need for actual measurement of deformation and strain values to be corrected. Three-dimensional deformation measurement by optical technology can replace the traditional strain gauges and displacement sensors, optical three-dimensional deformation measurement technique is not only easy to use, fast implementation three-dimensional deformation and strain measurement, strain gauges and can be completed and the displacement sensor measurements can not be achieved. Can be widely used in sheet metal forging measurement, material testing, biomechanical testing, mold testing, large deformation and so on.
XJTUDIC full-filed dynamic strain: Strain Grand Rapid measurement of three-dimensional mechanical properties.
XJTUSD static deformation measurements: for large size (<100m) large deformation measurements.
XJTUDA dynamic deformation measurements: rapid measurement of dynamic three-dimensional deformation,.
XJTUSM sheet metal strain measurement: measuring three-dimensional strain in sheet metal forming.
Key technologies and features
Multi-camera multi-format camera flexible self-calibration technique. Solve the traditional calibration method requires high-precision calibration block, to achieve a quick, convenient, high-precision camera calibration is the basis of three-dimensional photogrammetry and core.
Independent research and development of industrial close-range photogrammetry technology. Portable CMM measuring range of several mm to tens of meters, and self-developed three-dimensional surface scanning system work closely together to achieve a more visually scan mosaic, mosaic surface scanning to eliminate the accumulated error. Only three similar international system to achieve industrialization and product of.
Three-dimensional optical surface scanning and photogrammetry integration of three-dimensional scanning technology to solve a number of splicing, as the scanning point cloud generated by the cumulative error and realizes the automatic stitching, to meet the automation and precision industrial measurement control requirements. Only a similar international system.
A series of key technology to achieve a breakthrough series of three-dimensional camera system. Realized the camera calibration, 3D reconstruction, point cloud processing, deformation analysis techniques. Seven developed system for three-dimensional coordinate measurement, point cloud acquisition, three-dimensional static deformation and dynamic strain audience measurement and analysis, and strain analysis of sheet metal forming. The international community has only one unit of the technology.
Systems and products of industrialization: the aerospace, automotive, machinery and other industries to promote the application of mobile phone to tens of meters to meet dozens of aircraft measurements mm testing requirements.
Independently developed a series of industrial three-dimensional photographic measurement system
System
Function
System
Function

XJTUDIC3D digital speckle: Dynamic three-dimensional full-field strain measurement , for materials analysis and numerical simulation XJTUSD static deformation measurements:3D deformation measurement of multiple states, a few millimeters ~ tens of meters objects, especially suitable for measuring large parts of the three-dimensional deformation
XJTUDA Dynamic Deformation Measurement: Measurement landmarks in three-dimensional dynamic deformation and movement. XJTUSM strain measurement in sheet metal forming: The Wang Geying variable method, adopted in sheet prior corrosion on the grid, after the calculation of three-dimensional sheet metal forming the audience response.

XJTUOM three-dimensional surface scanning system: rapid access to contour point cloud, for the full-scale testing or reverse engineering reverse. XJTUDP industrial three-dimensional photogrammetry: Portable optical CMM, surface scanning used alone or integrated, once all the key measurement point coordinate. A few millimeters objects ~ tens of meters

XJTUSO small three-dimensional optical surface scanning system designed for small parts of the reverse scan and rapid detection of three-dimensional full-size. XJTUOM INSPECTOR point cloud to deal with than the detection system: massive cloud of splicing, overlapping surface integration, noise reduction, and the number of point cloud and CAD model of three-dimensional comparison test.

XJTUDIC is a non-contact optical 3D deformation measuring system based on DIC (Digital Image Correlation). XJTUDIC analyzes, calculates and documents deformations. The graphical representation of the measuring results provides an optimum understanding of the behavior of the object to be measured.

(7.)Contact

Liang Jin ，Professor
Institute of Metal Forming And Die & Mould Technology
School of Mechanical Engineering , Xi’an Jiaotong University
No.28, Xianning Road , Xi’an ,Shaanxi province,China ,
PostCode:710049
Email: liangjin@mail.xjtu.edu.cn
Homepage: www.xjtudic.com
liangjin.gr.xjtu.edu.cn

(4.)Honors
Video Demo:
XJTUDIC,XJTUSD,XJTUDA,XJTUSM

图片资料 - 梁晋