中国科学院机构知识库网格系统: 检索

Development and Validation of a Self-Aligning Knee Exoskeleton With Hip Rotation Capability 期刊论文 OAI收割
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING, 2024, 卷号: 32, 页码: 472-481
作者: Li, Guotao; Liang, Xu; Lu, Huijuan; Su, Tingting; Hou, Zeng-Guang

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收藏 | 浏览/下载：36/0 | 提交时间：2024/03/26

Exoskeletons Knee Hip Kinematics Iron Torque Legged locomotion Knee exoskeleton self-aligning mechanism kinematic compatibility optimization

Key assembling and alignment technology of laser communication opto-mechanical system 会议论文 OAI收割
Shenzhen, China, 2023-11-10
作者: Cao, Mingqiang; Lei, Yu; Shi, Yuanyuan; Ren, Wangtao; Liu, Yong

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收藏 | 浏览/下载：13/0 | 提交时间：2024/08/21

laser communication assembling and aligning technology transceiver consistency divergence angle

Design and Validation of a Self-Aligning Index Finger Exoskeleton for Post-Stroke Rehabilitation 期刊论文 OAI收割
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING, 2021, 卷号: 29, 页码: 1513-1523
作者: Sun, Ning; Li, Guotao; Cheng, Long

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收藏 | 浏览/下载：25/0 | 提交时间：2021/11/02

Exoskeletons Indexes Kinematics Training Force Electronics packaging Task analysis Finger exoskeleton self-aligning mechanism kinematic compatibility kineto-statics

Automatic Precision Robot Assembly System with Microscopic Vision and Force Sensor 期刊论文 OAI收割
International Journal of Advanced Robotic Systems, 2019, 卷号: 2019, 期号: 2019, 页码: 1-15
作者: Yanqin Ma; Kai Du; Dongfeng Zhou; Juan Zhang; Xilong Liu

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收藏 | 浏览/下载：20/0 | 提交时间：2020/06/11

Grasping Aligning visual servoing precision assembly robot system

Pose measuring and aligning of a micro glass tube and a hole on the micro sphere 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING, 2014, 卷号: 15, 期号: 12, 页码: 2483-2491
作者: Li, Fu-Dong; Xu, De; Zhang, Zheng-Tao; Shi, Ya-Li; Shen, Fei

收藏 | 浏览/下载：30/0 | 提交时间：2015/08/12

Pose measuring Pose aligning Pose vector Microscopic camera Microassembly

Motion-based microscopic camera calibration and application on micro tube-hole insertion 期刊论文 OAI收割
OPTICAL ENGINEERING, 2014, 卷号: 53, 期号: 5, 页码: 053103-1-9
作者: Li, Fudong; Xu, De; Shi, Yali; Zhang, Zhengtao

收藏 | 浏览/下载：50/0 | 提交时间：2015/08/12

feature extraction autofocus calibration microscopic camera visual servoing aligning microassembly

A line mapping based automatic registration algorithm of infrared and visible images 会议论文 OAI收割
5th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Infrared Imaging and Applications, Beijing, June 25-27, 2013
作者: Ai R(艾锐); Shi ZL(史泽林); Xu DJ(徐德江); Zhang CS(张程硕)

收藏 | 浏览/下载：36/0 | 提交时间：2013/12/26

There exist complex gray mapping relationships among infrared and visible images because of the different imaging mechanisms. The difficulty of infrared and visible image registration is to find a reasonable similarity definition. In this paper, we develop a novel image similarity called implicit linesegment similarity(ILS) and a registration algorithm of infrared and visible images based on ILS. Essentially, the algorithm achieves image registration by aligning the corresponding line segment features in two images. First, we extract line segment features and record their coordinate positions in one of the images, and map these line segments into the second image based on the geometric transformation model. Then we iteratively maximize the degree of similarity between the line segment features and correspondence regions in the second image to obtain the model parameters. The advantage of doing this is no need directly measuring the gray similarity between the two images. We adopt a multi-resolution analysis method to calculate the model parameters from coarse to fine on Gaussian scale space. The geometric transformation parameters are finally obtained by the improved Powell algorithm. Comparative experiments demonstrate that the proposed algorithm can effectively achieve the automatic registration for infrared and visible images, and under considerable accuracy it makes a more significant improvement on computational efficiency and anti-noise ability than previously proposed algorithms.

Compact visual control system for aligning and tracking narrow butt seams with CO2 gas-shielded arc welding 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2012, 卷号: 62, 期号: 9-12, 页码: 1157-1167
作者: Xu, De; Fang, Zaojun; Chen, Haiyong; Yan, Zhiguo; Tan, Min

收藏 | 浏览/下载：32/0 | 提交时间：2015/08/12

Feature extraction Image feature statistics Start welding position Visual control Vision system Aligning Seam tracking Gas-shielded arc welding Container manufacturing

A nanometer scale alignment method of concentric spherical mirrors based on interferometry (EI CONFERENCE) 会议论文 OAI收割
4th IEEE International Nanoelectronics Conference, INEC 2011, June 21, 2011 - June 24, 2011, Tao-Yuan, Taiwan
作者: Xu T.

收藏 | 浏览/下载：16/0 | 提交时间：2013/03/25

A nanometer scale alignment method of spherical concentric mirrors based on dual-beam interferometry is proposed which is also the method to measure the defocus of concentric spherical mirrors. In the process of aligning the concentric spherical mirrors the defocus can be measured real time with nanometer scale error. The experimental result shows that the method can achieve the defocus of the spherical concentric mirrors several nanometers. 2011 IEEE.

Effects of fabricated error on transmission performance of double screens cross loop slot FSS configuration (EI CONFERENCE) 会议论文 OAI收割
2006 7th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2006, October 26, 2006 - October 29, 2006, Guilin, China
作者: He B.

收藏 | 浏览/下载：23/0 | 提交时间：2013/03/25

This paper proposes that the inter-layer separation distance (ISD) and the unit cell aligning error (UAE) are used as main variables to study the transmission performance attenuation of the double layer FSS configuration. The numerical analysis model for ISD and UAE was established and also was used to simulate the cross loop slot cell FSS transmission performance by the finite element and periodic moment method program. The double layer cross loop aperture FSS configuration designed was used as the numerical model. As a result of the numerical analysis it is shown that both ISD and UAE produce insertion transmission loss (ITL) and insertion phase distortion (IPD) directly. Furthermore ISD results in much loss of the amplitude of the transmitted signal for the FSS than UAE. It is significant for the designer for the multiplayer FSS to assign the fabricated error of the FSS dielectric layers. The UAE introduces the insertion phase variation badly.