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An optical sensor for hydrogen sulfide detection in open path using WMS-2f/1f technique被引量：2: 《Optoelectronics Letters》2016年第6期465-468,共4页宋丽梅刘力文杨燕罡郭庆华习江涛; supported by the National Natural Science Foundation of China(Nos.60808020 and 61078041);the Natural Science Foundation of Tianjin(Nos.16JCQNJC02100,15JCYBJC51700 and 16JCYBJC15400);the National Science and Technology Support(No.2014BAH03F01); An optical hydrogen sulfide(H_2S) sensor based on wavelength modulation spectroscopy with the second harmonic(2f) corrected by the first harmonic(1f) signal(WMS-2f/1f) is developed using a distributed feedback(DFB) la...; 关键词：corrected sulfide deviation Allan reflecting harmonic targeting drift linearity length

A 3D measurement method based on multi-view fringe projection by using a turntable被引量：1: 《Optoelectronics Letters》2016年第5期389-394,共6页宋丽梅高艳艳朱新军郭庆华习江涛; supported by the National Natural Science Foundation of China(Nos.60808020 and 61078041);the Natural Science Foundation of Tianjin City(Nos.15JCYBJC51700 and 16JCYBJC15400);the National Science and Technology Support(No.2014BAH03F01); In order to get the entire data in the optical measurement, a multi-view three-dimensional(3D) measurement method based on turntable is proposed. In the method, a turntable is used to rotate the object and obtain mult...; 关键词：projection registered cloud fringe calibration rotate fitting reconstructed coordinates scanner

Multi-view coordinate system transformation based on robot被引量：1: 《Optoelectronics Letters》2015年第6期473-476,共4页宋丽梅王朋强习江涛郭庆华唐欢李晶李晓捷朱腾达; supported by the National Natural Science Foundation of China(Nos.60808020 and 61078041);the National Science and Technology Support Program(No.2014BAH03F01);the Tianjin Research Program of Application Foundation and Advanced Technology(No.10JCYBJC07200);the Tianjin Small and Medium Enterprise Innovation Fund(No.12ZXCXGX11800);the Technology Program of Tianjin Municipal Education Commission(No.20130324); The registration of point cloud is important for large object measurement.A measurement method for coordinate system transformation based on robot is proposed in this paper.Firstly,for obtaining extrinsic parameters,t...; 关键词：坐标系转换机器人多视图坐标系统物体测量变换矩阵多视点云测量方法

A stereo matching algorithm based on SIFT feature and homography matrix被引量：4: 《Optoelectronics Letters》2015年第5期390-394,共5页李宗艳宋丽梅习江涛郭庆华朱新军陈明磊; supported by the National Natural Science Foundation of China(Nos.60808020 and 61078041);the National Science and Technology Support(No.2014BAH03F01);the Tianjin Research Program of Application Foundation and Advanced Technology(No.10JCYBJC07200);the Technology Program of Tianjin Municipal Education Commission(No.20130324); Aiming at the low speed of traditional scale-invariant feature transform(SIFT) matching algorithm, an improved matching algorithm is proposed in this paper. Firstly, feature points are detected and the speed of featur...; 关键词：matching stereo invariant rotation constraint camera neighborhood otherwise entirely histogram

A correction method of color projection fringes in 3D contour measurement被引量：4: 《Optoelectronics Letters》2015年第4期303-306,共4页宋丽梅李宗艳陈昌曼习江涛郭庆华李晓捷; supported by the National Natural Science Foundation of China(Nos.60808020 and 61078041);the National Science and Technology Support(No.2014BAH03F01);the Tianjin Research Program of Application Foundation and Advanced Technology(No.10JCYBJC07200);the Technology Program of Tianjin Municipal Education Commission(No.20130324); In the three-dimensional(3D) contour measurement,the phase shift profilometry(PSP) method is the most widely used one.However,the measurement speed of PSP is very low because of the multiple projections.In order to im...; 关键词：correction contour projection grating correcting projected pixel sinusoidal fringe Tianjin

A non-contact real-time measurement of lamp dimension based on machine vision被引量：5: 《Optoelectronics Letters》2015年第2期145-148,共4页宋丽梅王朋强常玉兰李晓捷习江涛郭庆华李秉男; supported by the National Natural Science Foundation of China(Nos.60808020 and 61078041);the National Science and Technology Support(No.2014BAH03F01);the Tianjin Research Program of Application Foundation and Advanced Technology(No.10JCYBJC07200);the Technology Program of Tianjin Municipal Education Commission(No.20130324); In order to realize the online measurement of lamp dimension,the bulb image dimension measurement based on vision(BIDMV)is proposed.The image of lamp is obtained by camera.After image processing,such as Otsu algorithm...; 关键词：Image processing Median filters Time measurement

Steering knuckle diameter measurement based on optical 3D scanning被引量：1: 《Optoelectronics Letters》2014年第6期473-476,共4页宋丽梅李大鹏常玉兰习江涛郭庆华; supported by the National Natural Science Foundation of China(Nos.60808020 and 61078041);the Tianjin Research Program of Application Foundation and Advanced Technology(No.10JCYBJC07200); To achieve accurate measurements, the creating a fitting hole for internal diameter(CFHID) measurement method and the establishing multi-sectional curve for external diameter(EMCED) measurement method are proposed in ...; 关键词：直径测量三维扫描转向节接触式测量测定方法测量方法视觉原理精确测量

Research on high-precision hole measurement based on robot vision method被引量：4: 《Optoelectronics Letters》2014年第5期378-382,共5页宋丽梅李大鹏覃名翠李宗艳常玉兰习江涛; supported by the National Natural Science Foundation of China(Nos.60808020 and 61078041);the Tianjin Research Program of Application Foundation and Advanced Technology(No.10JCYBJC07200); A high-precision vision detection and measurement system using mobile robot is established for the industry field detection of motorcycle frame hole and its diameter measurement. The robot path planning method is rese...; 关键词：机器人视觉高精度测量孔图像边缘提取机器人路径规划 CANNY算子摩托车车架测量系统

A color phase shift profilometry for the fabric defect detection: 《Optoelectronics Letters》2014年第4期308-312,共5页宋丽梅李宗艳常玉兰邢广鑫王朋强习江涛朱腾达; supported by the National Natural Science Foundation of China(Nos.60808020 and 61078041);the Tianjin Research Program of Application Foundation and Advanced Technology(No.10JCYBJC07200); For fabric defect identification in the textile industry, a three-dimensional(3D) color phase shift profilometry(CPSP) method is proposed. The detecting system is mainly composed of one CCD camera and one digital-ligh...; 关键词：织物疵点疵点检测轮廓相移 DLP投影机 CCD摄像机彩色检测系统

A non-contact gear measurement method based on laser vision被引量：1: 《Optoelectronics Letters》2014年第3期237-240,共4页宋丽梅覃名翠李宗艳杨燕罡李大鹏; supported by the National Natural Science Foundation of China(Nos.60808020 and 61078041);the Tianjin Research Program of Application Foundation and Advanced Technology(No.10JCYBJC07200); In order to classify the gears and achieve high precision measurement results,a non-contact gear measurement system based on the laser vision is developed in this paper.The laser vision precision measurement method(LV...; 关键词：齿轮测量测量方法激光视觉非接触式测量不确定度测量系统标准齿轮高精度

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