中国科学院机构知识库网格系统: 检索

Detecting and Tracking 6-DoF Motion of Unknown Dynamic Objects in Industrial Environments Using Stereo Visual Sensing 期刊论文 OAI收割
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS, 2024, 页码: 13
作者: Cao, Hao

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收藏 | 浏览/下载：22/0 | 提交时间：2024/09/09

Dynamics Motion estimation Cameras Robots Vehicle dynamics Object detection Accuracy Mapping motion estimation stereo tracking

MOC: Wi-Fi FTM With Motion Observation Chain for Pervasive Indoor Positioning 期刊论文 OAI收割
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS, 2024, 页码: 16
作者: Shao, Wenhua; Luo, Haiyong; Zhao, Fang; Hong, Yunhan; Li, Yaqi

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收藏 | 浏览/下载：8/0 | 提交时间：2024/12/06

Distance measurement Accuracy Position measurement Wireless fidelity Motion measurement Protocols Indoor environment Factor graph indoor localization motion model ranging model time-of-flight

An Adaptive Stacking-OF Method for Extracting Glacier Velocity Field Using Optical Remote Sensing Datasets 期刊论文 OAI收割
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2024, 卷号: 21, 页码: 5
作者: Fu, Yin; Zhang, Bo; Liu, Qiao; Shi, Yue; Wang, Jiao

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收藏 | 浏览/下载：6/0 | 提交时间：2024/12/04

Glaciers Remote sensing Optical filters Filters Accuracy Stacking Image motion analysis Adaptive Stacking-optical flow (OF) glacier flow velocity field Gongba Glacier OF optical remote sensing images

Hierarchical Motion Learning for Goal-Oriented Movements With Speed-Accuracy Tradeoff of a Musculoskeletal System 期刊论文 OAI收割
IEEE TRANSACTIONS ON CYBERNETICS, 2021, 页码: 14
作者: Zhou, Junjie; Zhong, Shanlin; Wu, Wei

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收藏 | 浏览/下载：29/0 | 提交时间：2022/01/27

Muscles Adaptation models Task analysis Arms Mathematical model Integrated circuit modeling Basal ganglia Brain-inspired decision making Fitts' law motion generation musculoskeletal system speed-accuracy tradeoff (SAT)

Optimal synthesis of pose repeatability for collaborative robots based on the ISO 9283 standard 期刊论文 OAI收割
Industrial Robot, 2019, 页码: 1-7
作者: Hu MW(胡明伟); Wang HG(王洪光); Pan XA(潘新安); Tian Y(田勇)

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收藏 | 浏览/下载：35/0 | 提交时间：2019/09/15

Collaborative robots Motion accuracy Optimal synthesis Pose repeatability

Motion error based robust topology optimization for compliant mechanisms under material dispersion and uncertain forces 期刊论文 OAI收割
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION, 2018, 卷号: 57, 期号: 6, 页码: 2161-2175
作者: Wang XJ

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收藏 | 浏览/下载：41/0 | 提交时间：2018/07/17

Compliant Mechanisms Uncertainties Motion Accuracy Robust Design Topology Optimization

The application of digital signal processing (DSP) for the real time solving of artillery fire control exterior trajectory (EI CONFERENCE) 会议论文 OAI收割
2012 IEEE 3rd International Conference on Software Engineering and Service Science, ICSESS 2012, June 22, 2012 - June 24, 2012, Beijing, China
作者: Li D.

收藏 | 浏览/下载：141/0 | 提交时间：2013/03/25

Method of gain firing data by calculate the group of differential equation has the advantages of high repeatability and high accuracy But much of the CPU time is occupied by the task of re-iteration in computational processing. Therefore it is not the real time processing. This paper introduces a method to quickly determine angle of firing by iteration method which realizes Runge-Kutta method for the equations of exterior ballistic according to the model of mass center motion of projectile. Moreover it also provides the flow of real-time integral solution and be proved by the simulation of MATLAB. Its accuracy satisfies the requirements. This work can be as reference for the design of opt-electrical fire control system and the demonstration work. 2012 IEEE.

Efficient human action recognition using accumulated motion image and support vector machines (EI CONFERENCE) 会议论文 OAI收割
International Workshop on Advanced Computational Intelligence and Intelligent Informatics, IWACIII 2011, November 19, 2011 - November 23, 2011, Suzhou, China
作者: Zhang X.; Zhang J.; Zhang J.; Zhang X.; Zhang X.

收藏 | 浏览/下载：68/0 | 提交时间：2013/03/25

Vision-based human action recognition provides an advanced interface and research in this field of human action recognition has been actively carried out. This paper describes a scheme for recognizing human actions from a video sequences. The proposed method is an extension of the Motion History Image(MHI) method based on the ordinal measure of accumulated motion which is robust to variations of appearances. We define the accumulated motion image(AMI) using image differences firstly. Then the AMI of the video sequencesis resized to a MN regulation following the standard of training phases. Finally we employ Support Vector Machine(SVM) as a classifier to distinguish the current activity in target video sequences. In a word our proposed algorithm not only outperforms the state of art on public available KTH data set and Weizmann data set but also proves practical to some real world applications in addition this method is computationally simple and able to achieve a satisfactory accuracy.

Design and analysis of auto-focus assembly for spaceborne remote sensing camera (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China
作者: Chen W.; Gao X.

收藏 | 浏览/下载：30/0 | 提交时间：2013/03/25

Spaceborne remote sensing camera may be out of focus when the environment and photographic distance changes. In order to get higher ground sampled distance for the camera based on the experience gained from the development of a remote sensing camera working principle of auto-focus assembly control system was discussed. Time of waveform extraction was reduced. It sets force an auto-focus assembly that uses cam and line guide rail in order to move the lens group. The motion error of the auto-focus assembly was difficult to be eliminated and would affect on the focusing accuracy of the spaceborne remote sensing camera directly. So it was analyzed at both ends of the focusing structure. The CCD detector can keep stable when the remote sensing camera is imaging. The motion error was tested to verify the validity of the simulation result and it is less than 0.01mm. Its accuracy meets using demand. The focusing method of moving focal plane is suitable for spaceborne remote sensing camera. 2011 IEEE.

Three-sample rotation vector algorithm with angular rate input (EI CONFERENCE) 会议论文 OAI收割
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China
作者: Zhang Y.

收藏 | 浏览/下载：22/0 | 提交时间：2013/03/25

In order to research the attitude algorithm with angular rate input under the conical motion a optimal threesample rotation vector algorithm based on single-step Newton backward interpolation is proposed. Using the principle of limited rigid body rotation and the characteristic of angular rate input three-sample rotation vector algorithm is derivated. To minimum attitude errors three-sample rotation vector algorithm is optimized. Three angular rate extraction methods of singlestep entire sample recursion multi-step entire sample and singlestep Newton backward interpolation are proposed. Under the condition of conical motion with semi-cone angle 3 and angular frequency 2rad/s simulation is done. The simulation results show that single-step Newton backward interpolation is superior to the other two methods and its maximum error peak is 0.01 error drift rate is 0.036/h. Experiments in three-axis flying turntable with the same parameters are carried out and the results show that error drift rates of three-channels are less than those of traditional quaternion which are 13.53% 12.08% and 23.68% lower respectively. It also verified that the new algorithm can perform a high accuracy under the conical motion. 2011 IEEE.