Research on the Control Strategy of Eye-to-Hand Target Track Real-Time Tracking System

2014 ◽  
Vol 1055 ◽  
pp. 334-337
Author(s):  
Jia Xin Zhang ◽  
Xiao La Yao ◽  
Jiang Tao Miao

This paper presents an Eye-to-hand system, designed for hand-eye system presents a automatically real-time tracking of moving targets control strategy. The first strategy uses a color mark on the target, the use of binocular stereo vision system for color measurement and then in the visual system of the target three-dimensional reconstruction to give the three-dimensional coordinates in the visual coordinate system when the target position and orientation when changes according to the amount of change in the three-dimensional coordinates of the direct control of the robot arm motion of each joint, enabling the tracking of moving targets.

2018 ◽  
Vol 30 (3) ◽  
pp. 453-466 ◽  
Author(s):  
Shaopeng Hu ◽  
◽  
Mingjun Jiang ◽  
Takeshi Takaki ◽  
Idaku Ishii

In this study, we developed a monocular stereo tracking system to be used as a marker-based, three-dimensional (3-D) motion capture system. This system aims to localize dozens of markers on multiple moving objects in real time by switching five hundred different views in 1 s. The ultrafast mirror-drive active vision used in our catadioptric stereo tracking system can accelerate a series of operations for multithread gaze control with video shooting, computation, and actuation within 2 ms. By switching between five hundred different views in 1 s, with real-time video processing for marker extraction, our system can function asJvirtual left and right pan-tilt tracking cameras, operating at 250/Jfps to simultaneously capture and processJpairs of 512 × 512 stereo images with different views via the catadioptric mirror system. We conducted several real-time 3-D motion experiments to capture multiple fast-moving objects with markers. The results demonstrated the effectiveness of our monocular 3-D motion tracking system.


Sensors ◽  
2021 ◽  
Vol 21 (23) ◽  
pp. 7780
Author(s):  
Johannes Link ◽  
Sébastien Guillaume ◽  
Bjoern M. Eskofier

For sports scientists and coaches, its crucial to have reliable tracking systems to improve athletes. Therefore, this study aimed to examine the validity of a wearable real-time tracking system (WRRTS) for the quantification of ski jumping. The tracking system consists of wearable trackers attached to the ski bindings of the athletes and fixed antennas next to the jumping hill. To determine the accuracy and precision of the WRRTS, four athletes of the German A or B National Team performed 35 measured ski jumps. The WRRTS was used to measure the 3D positions and ski angles during the jump. The measurements are compared with camera measurements for the in-flight parameters and the official video distance for the jumping distance to assess their accuracy. We statistically evaluated the different methods using Bland–Altman plots. We thereby find a mean absolute error of 0.46 m for the jumping distance, 0.12 m for the in-flight positions, and 0.8°, and 3.4° for the camera projected pitch and V-style opening angle, respectively. We show the validity of the presented WRRTS to measure the investigated parameters. Thus, the system can be used as a tracking system during training and competitions for coaches and sports scientists. The real-time feature of the tracking system enables usage during live TV broadcasting.


2020 ◽  
Vol 2 (Oktober) ◽  
pp. 29-36
Author(s):  
Agus Faesol ◽  
Imam Ashar ◽  
Gatut Yulisusianto

Abstract: In the world of technology that is increasing, then as humans we will not be separated from the process improvement that occurs. From year to year, it is certain that this increase will certainly. Increasingly rapidly occurring in communication technology. Communication technology has also penetrated the military world, especially in MQTT-based communications. In this research, MQTT-based technology is applied to implement real time tracking system on android. This system is used to send the longitude and latitude coordinates of the personnel so that these points can be known directly via android. From this pure experimental research method, the coordinate point data will continue to be monitored and the existence can be known continuously. This system is designed on a VPS server or Virtual Private Server, so that all devices even though none of the networks can communicate with  each  other  as  long  as  they  have  access  rights  for application user.


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