Trinocular vision for automatic and robust 3D determination of the trajectories of moving objects

1990 ◽  
Author(s):  
Emmanuel P. Baltsavias ◽  
Dirk Stallmann
Keyword(s):  
Moving Objects

Determination of the Minimum Distance Between Moving Objects Including Velocity Information

1993 ◽  
Author(s):  
Meyer Nahon
Keyword(s):  
Minimum Distance ◽  
Moving Objects ◽  
Rapid Determination ◽  
Computation Time ◽  
Optimization Techniques ◽  
Real Time Control ◽  
Time Step ◽  
Time Control ◽  
Velocity Information

Abstract The rapid determination of the minimum distance between objects is of importance in collision avoidance for a robot maneuvering among obstacles. Currently, the fastest algorithms for the solution of this problem are based on the use of optimization techniques to minimize a distance function. Furthermore, to date this problem has been approached purely through the position kinematics of the two objects. However, although the minimum distance between two objects can be found quickly on state-of-the-art hardware, the modelling of realistic scenes entails the determination of the minimum distances between large numbers of pairs of objects, and the computation time to calculate the overall minimum distance between any two objects is significant, and introduces a delay which has serious repercussions on the real-time control of the robot. This paper presents a technique to modify the original optimization problem in order to include velocity information. In effect, the minimum distance calculation is performed at a future time step by projecting the effect of present velocity. This method has proven to give good results on a 6-dof robot maneuvering among obstacles, and has allowed a complete compensation of the lags incurred due to computational delays.

scholarly journals Pertimbangan Hakim dalam Penilaian Alat Bukti Surat pada Perkara Penetapan Ahli Waris

2021 ◽  
Vol 2 (1) ◽  
pp. 99-103
Author(s):  
Ni Made Sinthya Kusuma Arisanthi ◽  
I Nyoman Putu Budiartha ◽  
I Nyoman Gede Sugiartha
Keyword(s):  
Moving Objects ◽  
Legal Reasoning ◽  
Civil Liability ◽  
The Law

In Heritance is everything in the form of treasure relics left by the heir to the beneficiary, which is that this inheritance can be moving objects and the objects do not move or be rights and obligations. Lately very many disputes arising in consequence in the dividing of the inheritance, which, between the rights and obligations of the unbalanced or in the dividing of the inheritance that is not in accordance with the wishes of the heirs. The dividing of inheritance should be using wills avoiding disputes among the heirs, the absence of a will the heir must prove with evidence of tools that have been specified in the law. One tool evidence supports a very authentic and has the power of proof most perfect IE tool written evidence or mail. From the background of the above, the authors take the title Considerations in the Assessment of the Evidence the Judge a Letter in the Case of Determination of Heirs. In this study, used normative research, so that it can be formulated as follows: the issue of whether the evidence of a letter submitted by the applicant was the beneficiary designation in accordance with the law of civil liability, as well as how the Tribunal judges considering the evidence a letter to grant the petition for dermination of the heirs, from the formulation of the problem can be explored regarding the evidence of tools able to convince at the same time as the consideration of judges in disconnected things of the expert determination the heir. The goals of this research are: to know the strength of the evidence of a letter in the system of succession in Indonesia, as well as to know the legal reasoning used by the judge as the consideration.

Determination of strain in moving objects by X-ray diffraction using synchrotron radiation

1988 ◽  
Vol 21 (6) ◽  
pp. 972-974 ◽  
Author(s):  
J. Ihringer ◽  
T. Wroblewski ◽  
A. Küster ◽  
J. K. Maichle
Keyword(s):  
Synchrotron Radiation ◽  
Moving Objects ◽  
X Ray Diffraction ◽  
X Ray

Real-time cooperative interaction between structured-light and reflectance ranging for robot guidance

Robotica ◽  
1985 ◽  
Vol 3 (1) ◽  
pp. 7-11 ◽  
Author(s):  
Ernest W. Kent ◽  
Thomas Wheatley ◽  
Marilyn Nashman
Keyword(s):  
Real Time ◽  
Moving Objects ◽  
Structured Light ◽  
Video Camera ◽  
The Other ◽  
Cooperative Interaction ◽  
Complex Objects ◽  
Improved Performance ◽  
Log Linear

SUMMARYWhen applied to rapidly moving objects with complex trajectories, the information-rate limitation imposed by video-camera frame rates impairs the effectiveness of structured-light techniques in real-time robot servoing. To improve the performance of such systems, the use of fast infra-red proximity detectors to augment visual guidance in the final phase of target acquisition was explored. It was found that this approach was limited by the necessity of employing a different range/intensity calibration curve for the proximity detectors for every object and for every angle of approach to complex objects. Consideration of the physics of the detector process suggested that a single log-linear parametric family could describe all such calibration curves, and this was confirmed by experiment. From this result, a technique was devised for cooperative interaction between modalities, in which the vision sense provided on-the-fly determination of calibration parameters for the proximity detectors, for every approach to a target, before passing control of the system to the other modality. This technique provided a three hundred percent increase in useful manipulator velocity, and improved performance during the transition of control from one modality to the other.

scholarly journals A Gyro-Free System for Measuring the Parameters of Moving Objects

2014 ◽  
Vol 14 (5) ◽  
pp. 263-269 ◽  
Author(s):  
Dimitar Dichev ◽  
Hristofor Koev ◽  
Totka Bakalova ◽  
Petr Louda
Keyword(s):  
Degrees Of Freedom ◽  
Moving Objects ◽  
Measuring System ◽  
Measurement Channel ◽  
Measuring Instruments ◽  
Additional Measurement ◽  
Free System ◽  
Six Degrees Of Freedom ◽  
Measurement Concept

Abstract The present paper considers a new measurement concept of modeling measuring instruments for gyro-free determination of the parameters of moving objects. The proposed approach eliminates the disadvantages of the existing measuring instruments since it is based, on one hand, on a considerably simplified mechanical module, and on the other hand, on the advanced achievements in the area of nanotechnologies, microprocessor and computer equipment. A specific measuring system intended for measuring the trim, heel, roll, and pitch of a ship has been developed in compliance with the basic principles of this concept. The high dynamic accuracy of this measuring system is ensured by an additional measurement channel operating in parallel with the main channel. The operating principle of the additional measurement channel is based on an appropriate correction algorithm using signals from linear MEMS accelerometers. The presented results from the tests carried out by means of stand equipment in the form of a hexapod of six degrees of freedom prove the effectiveness of the proposed measurement concept

scholarly journals А Меаsuring Method for Gyro-Free Determination of the Parameters of Moving Objects

2016 ◽  
Vol 23 (1) ◽  
pp. 107-118 ◽  
Author(s):  
Dimitar Dichev ◽  
Hristofor Koev ◽  
Totka Bakalova ◽  
Petr Louda
Keyword(s):  
Moving Objects ◽  
Low Cost ◽  
Dynamic Error ◽  
Measurement Channel ◽  
Measuring Instruments ◽  
Main Concept ◽  
Measuring Systems ◽  
Spectrum Change ◽  
Wide Range

Abstract The paper presents a new method for building measuring instruments and systems for gyro-free determination of the parameters of moving objects. To illustrate the qualities of this method, a system for measuring the roll, pitch, heel and trim of a ship has been developed on its basis. The main concept of the method is based, on one hand, on a simplified design of the base coordinate system in the main measurement channel so as to reduce the instrumental errors, and, on the other hand, on an additional measurement channel operating in parallel with the main one and whose hardware and software platform makes possible performing algorithms intended to eliminate the dynamic error in real time. In this way, as well as by using suitable adaptive algorithms in the measurement procedures, low-cost measuring systems operating with high accuracy under conditions of inertial effects and whose parameters (intensity and frequency of the maximum in the spectrum) change within a wide range can be implemented.

Determination of the parameters of moving objects

1986 ◽  
Vol 29 (12) ◽  
pp. 1112-1115
Author(s):  
V. I. Astrakhan ◽  
E. V. Komkov
Keyword(s):  
Moving Objects

A cellular automaton for the determination of the mean velocity of moving objects and its VLSI implementation

1996 ◽  
Vol 29 (4) ◽  
pp. 689-699 ◽  
Author(s):  
I. Karafyllidis ◽  
I. Andreadis ◽  
P. Tzionas ◽  
Ph. Tsalides ◽  
A. Thanailakis
Keyword(s):  
Cellular Automaton ◽  
Moving Objects ◽  
Vlsi Implementation ◽  
Mean Velocity ◽  
The Mean

Videogrammetry and one of its applications

2015 ◽  
Author(s):  
Daniela Velichova
Keyword(s):  
Moving Objects ◽  
Moving Object ◽  
Moving Targets ◽  
3 Dimensional ◽  
Video Cameras ◽  
Basic Concepts ◽  
Point Positioning

Videogrammetry is presented in the paper as a new branch of photogrammetry that offers some effective algorithms for direct reconstruction of moving objects from video records. Videogrammetry can solve two major problems: reconstruction of surfaces (body, face, etc.) and determination of trajectories of moving targets. Videogrammetry can inspect permanently provided and stored records taken by video cameras, so it can be used for additional measurements and re-measurements, and verification at any time. Basic concepts and algorithms for reconstruction of real dimensions of a 3 dimensional moving object from its video records are introduced. Basic formulas for algorithms of point positioning and calibration calculation are explained.

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