2008 IEEE Conference on Robotics, Automation and Mechatronics最新文献_第6页

Planar Visual Metrology using Partition-based Camera Calibration 基于分割相机标定的平面视觉测量

2008 IEEE Conference on Robotics, Automation and Mechatronics Pub Date : 2008-11-18 DOI: 10.1109/RAMECH.2008.4681413

Dongtai Liang, Xuanyin Wang

{"title":"Planar Visual Metrology using Partition-based Camera Calibration","authors":"Dongtai Liang, Xuanyin Wang","doi":"10.1109/RAMECH.2008.4681413","DOIUrl":"https://doi.org/10.1109/RAMECH.2008.4681413","url":null,"abstract":"In visual metrology the real imaging procedure is a complicate nonlinear system. Even after rectification of the radial distortion of the lens, it is hard to achieve high accuracy with single group of planar extrinsic parameters. According to the characteristics of the radial distortion of lens, a partition-based camera extrinsic calibration method for planar visual measurement is proposed. The image plane is partitioned into 9 subspaces according to the lens radial distortion, and in each subspace one group of extrinsic parameters of objects plane is calibrated separately. Although there is only one objects plane where the visual measurement is to be done, the groups of extrinsic parameters calibrated in each subspace are different because of the nonlinear in real system. In the subspace that the image points belong to, the corresponding group of extrinsic parameters of the subspace is adopted to reconstruct the 3D positions of the objects in the camera coordinate system. Finally experimental results show that the partition-based calibration method performs well in visual metrology. Compared with the method which uses single group of extrinsic parameters the proposed method can achieve higher accuracy in measuring distance of planar objects from their perspective images.","PeriodicalId":320560,"journal":{"name":"2008 IEEE Conference on Robotics, Automation and Mechatronics","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126829657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on a Pipe Welding Robot based on Laser Vision Sensing 基于激光视觉传感的管道焊接机器人研究

2008 IEEE Conference on Robotics, Automation and Mechatronics Pub Date : 2008-11-18 DOI: 10.1109/RAMECH.2008.4681506

Jiqiang Huang, Junfen Huang, Yong Zou, Lipei Jiang, Long Xue, Minshuang Huang

引用次数: 9

Adaptive Bandwidth Mean Shift Object Detection 自适应带宽平均偏移目标检测

2008 IEEE Conference on Robotics, Automation and Mechatronics Pub Date : 2008-11-18 DOI: 10.1109/RAMECH.2008.4681482

Xiaopeng Chen, Haiyan Huang, Haibo Zheng, Chengrong Li

{"title":"Adaptive Bandwidth Mean Shift Object Detection","authors":"Xiaopeng Chen, Haiyan Huang, Haibo Zheng, Chengrong Li","doi":"10.1109/RAMECH.2008.4681482","DOIUrl":"https://doi.org/10.1109/RAMECH.2008.4681482","url":null,"abstract":"In this paper, a novel adaptive bandwidth mean shift algorithm toward 2D object detection (ABMSOD) is proposed. It can not only identify whether an object of certain classes exists or not, but also get the scale and orientation besides position very fast. The feature histogram weighted by a kernel with adaptive bandwidth is used for representing the target object model and the candidate object model. Features such as color, texture, gradient and so on can be used. A single piece of image is enough to build a model by calculating the weighted feature histogram of the object in the image. There is no exhaustive training. The similarity of the target model and the candidate model is measured by the Bhattacharyya coefficient. After gathering the models of targets, the algorithm can be used for object detection. In the first step, the algorithm searches the whole image to find the rough positions of possible candidate objects. If the similarities are all below a certain threshold, it reports no object existence. If the similarities are above the threshold, the second step or the adaptive bandwidth mean shift search step is executed to find the best position, orientation and scale of these objects. Experiments show that it successfully detects the position, scale and orientation of objects.","PeriodicalId":320560,"journal":{"name":"2008 IEEE Conference on Robotics, Automation and Mechatronics","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126028775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

A Method of Remote Fault Diagnosis Based on Analytical Hierarchy Process 基于层次分析法的远程故障诊断方法

2008 IEEE Conference on Robotics, Automation and Mechatronics Pub Date : 2008-11-18 DOI: 10.1109/RAMECH.2008.4681442

Wang Xiao-bin, Chen Wen-yu, Sun Shi-xin, Liu Jing-bo

引用次数: 1

Study on Stability of Electric Power Steering System 电动助力转向系统稳定性研究

2008 IEEE Conference on Robotics, Automation and Mechatronics Pub Date : 2008-11-18 DOI: 10.1109/RAMECH.2008.4681347

Zuo Li, Wenjiang Wu

引用次数: 6

Optimized Control Methods for Capturing Flying Objects with a Cartesian Robot 直角坐标机器人捕获飞行物的优化控制方法

2008 IEEE Conference on Robotics, Automation and Mechatronics Pub Date : 2008-11-18 DOI: 10.1109/RAMECH.2008.4681368

H. Frank, D. Barteit, M. Meyer, A. Mittnacht, G. Novak, S. Mahlknecht

引用次数: 9

Lateral Position Control of a Moving Web in Roll-to-Roll Processes 卷对卷过程中移动腹板的横向位置控制

2008 IEEE Conference on Robotics, Automation and Mechatronics Pub Date : 2008-11-18 DOI: 10.1109/RAMECH.2008.4681385

Thanhtam Ho, Hyeunhun Shin, Sangyoon Lee

引用次数: 6

Slippery Model for a Semi-Passive Mobile Platform Subject to External Wrenches 外部扳手作用下半被动移动平台的滑溜模型

2008 IEEE Conference on Robotics, Automation and Mechatronics Pub Date : 2008-11-18 DOI: 10.1109/RAMECH.2008.4681404

S. Shoval, Amir Shapiro

引用次数: 0

A New Distance Algorithm and Its Application to General Force-Closure Test 一种新的距离算法及其在一般力闭合试验中的应用

2008 IEEE Conference on Robotics, Automation and Mechatronics Pub Date : 2008-11-18 DOI: 10.1109/RAMECH.2008.4681414

Yu Zheng, C. Chew

引用次数: 1

Research of Time-frequency Analysis Method of Nonstationary Periodic Signal 非平稳周期信号时频分析方法研究

2008 IEEE Conference on Robotics, Automation and Mechatronics Pub Date : 2008-11-18 DOI: 10.1109/RAMECH.2008.4681406

Qiang Zhou, Jiuqiang Han

引用次数: 0