A MATHEMATICAL MODEL OF THE TARGET TRACKING BY AN OCULOMETRY SYSTEM OPERATOR WITH VISUAL INFORMATION INTERRUPTION

2013 ◽  
Vol 72 (13) ◽  
pp. 1157-1165
Author(s):  
S. V. Utemov
Keyword(s):  
Mathematical Model ◽  
Target Tracking ◽  
Visual Information ◽  
System Operator

scholarly journals The Research on the Visual Obstacle-Avoidance Optimization in Robots Control

2013 ◽  
Vol 756-759 ◽  
pp. 372-375
Author(s):  
Hong Bin Tian
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Obstacle Avoidance ◽  
Visual Information ◽  
Structural Model ◽  
Three Dimension ◽  
Coordination Control ◽  
Dimension Space ◽  
The Mathematical Model ◽  
Very High

In order to increase the movement capability of the robotic visual system in three-dimension space, the paper designs an obstacle-avoidance algorithm based on robotic movement visual by effectively processing the visual information colleted by the robotics. This paper establishes a structural model of coordination control system. The obstacles can be effectively identified and avoided by the obstacle-avoidance theory in the robotics coordination operation. The mathematical model of the obstacle-avoidance algorithm can predict the locations of the obstacles. The experiment proves the proposed algorithm can avoid the obstacles in three-dimension space and the accuracy is very high.

An Improved Trace Method for Moving Target under Occlusion

2014 ◽  
Vol 672-674 ◽  
pp. 1931-1934
Author(s):  
Yu Bing Dong ◽  
Guang Liang Cheng ◽  
Ming Jing Li
Keyword(s):  
Mathematical Model ◽  
Target Tracking ◽  
Difficult Problem ◽  
Block Matching ◽  
Experimental Results ◽  
Polar Coordinates ◽  
Moving Target ◽  
Trajectory Prediction ◽  
Tracking Method

Occlusion is a difficult problem to be solved in the process of target tracking. In order to solve the problem of occlusion, a new tracking method combined with trajectory prediction and multi-block matching is presented and studied,and a mathematical model of trajectory prediction of moving target is established in polar coordinates and verified through some experiments. The experimental results show that the new tracking method can be better to trace and forecast the moving target under occlusion.

scholarly journals Vibrodiagnostic operator jaw skidder in the process of lifting (lowering) of the tree with an arrow.

2017 ◽  
Author(s):  
М.Р. Василевский ◽  
В.А. Александров
Keyword(s):  
Mathematical Model ◽  
Mathematical Description ◽  
Original Data ◽  
The Body ◽  
Model Operator ◽  
Lagrange’S Equations ◽  
Design Documentation ◽  
System Operator ◽  
Lagrange's Equations

Рассмотрена вибронагруженность оператора трелевочного трактора в режиме подъема дерева стрелой. Исследование проведено на математической модели биодинамической системы «оператор – трелевочный трактор – дерево». Математическое описание составлено в форме уравнения Лагранжа II рода. Модель оператора – двухмассовая. В процессе исследования варьировалось ускорение разгона стрелы манипулятора в диапазоне 0,1–0,6 м/с2. Расчеты выполнены с исходными данными применительно к трелевочному трактору ТБ-1М. Предложенная математическая модель позволяет определять вибрационное воздействие на организм оператора трелевочного трактора на стадии разработки конструкторской документации. The article describes vibrodiagnostic operator skidder in the mode of lifting the tree by an arrow. The study was conducted on a mathematical model of the biodynamic system "operator – skidder – wood". The mathematical description is in the form of Lagrange's equations of the 2nd kind. Model operator – dual-mass. During the study varied the acceleration of the acceleration arrows of the manipulator in the range of 0.1 to 0.6 m/s2. The calculations are performed with the original data in relation to the skidding tractor TB-1M. The proposed mathematical model allows to determine vibration effects on the body of the operator of the skidder at the stage of developing design documentation.

scholarly journals Real-time target tracking of soft tissues in 3D ultrasound images based on robust visual information and mechanical simulation

2017 ◽  
Vol 35 ◽  
pp. 582-598 ◽  
Author(s):  
Lucas Royer ◽  
Alexandre Krupa ◽  
Guillaume Dardenne ◽  
Anthony Le Bras ◽  
Eric Marchand ◽  
...  
Keyword(s):  
Target Tracking ◽  
Real Time ◽  
Visual Information ◽  
Soft Tissues ◽  
3D Ultrasound ◽  
Ultrasound Images ◽  
Mechanical Simulation

scholarly journals A simulation study on the effect of ionic currents on transmission from cones to retinal OFF type cone bipolar cells

2019 ◽  
Vol 2 (3) ◽  
pp. 14-20
Author(s):  
Akito Ishihara
Keyword(s):  
Mathematical Model ◽  
Visual Information ◽  
Neural Circuit ◽  
Ganglion Cells ◽  
Light Stimulus ◽  
Ionic Currents ◽  
Ionic Channels ◽  
Bipolar Cells ◽  
Glutamate Concentration ◽  
Cone Bipolar Cells

The retinal cone bipolar cells are interneurons which receive inputs from cone photoreceptors and send outputs to retinal ganglion cells. Several subtypes of bipolar cells have been identified by morphology and electrophysiology in the mammalian retina, which convey distinct visual information to higher order neurons in parallel. The neural circuit in the retina not only converts light information to neural . information, but also performs visual information preprocessing that has not yet been fully understood. Recently, it has been revealed that the neural circuits in retinas of higher vertebrates, such as mammals and primates, have various biophysical properties arising from being composed of ionic channels, ionic pumps, and neurotransmitter receptors. Analysis using a mathematical model based on their ionic mechanisms is essential to understand the visual information processing in the retinal neural circuit of the higher vertebrates. The cones and the bipolar cells respond to continuous variation of light with a graded potential, in an analog manner. Especially, glutamate is continuously released from a cone synapse in the dark and is decreased by hyperpolarization of the cone that receives the light stimulus. The alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) and kainate type ionotropic glutamate receptors (iGluRs) of the OFF type bipolar cells (OFF-BCs) exhibit partial or nearly complete desensitization in the sustained presence of glutamate. In the dark, glutamate concentration in the synaptic cleft of the cone pedicle rises to 0.1–0.5 mM.5,6 The baseline glutamate concentration depends on a sustained hyperpolarization of the cone by light. Thus, for understanding the working of the OFF-BCs, it is important to elucidate the mechanisms of synaptic transmission from cones to OFF-BCs via iGluRs, which undergo desensitization in the various background light conditions. Furthermore, there are various kinds of ionic channels in OFF-BCs that mediate membrane potential responses. It is considered that information transmitted from cones to OFF-BCs is modulated by the intrinsic ionic currents. We analyzed how ionic currents of OFF-BCs contribute to the transmission of light responses by developing a mathematical model.

Vibroloading of the operator feller buncher mode lift the tree by an arrow

2016 ◽  
Author(s):  
В.А. Александров ◽  
А.В. Александров
Keyword(s):  
Mathematical Model ◽  
Mathematical Description ◽  
Development Stage ◽  
The Body ◽  
Source Data ◽  
Design Documentation ◽  
System Operator ◽  
Made In

Рассмотрена вибронагруженность оператора валочно-пакетирующей машины в режиме выведения дерева из древостоя стрелой. Исследование проведено на математической модели биодинамической системы «оператор - валочно-пакетирующая машина - дерево». Математическое описание составлено в форме уравнения Лагранжа 2-го рода. Модель оператора представлена в виде двухмассовой. В процессе исследований варьировалось ускорение разгона стрелы в диапазоне 0,2…0,8 рад/с2. Расчеты выполнены с исходными данными применительно к валочно-пакетирующей машине ЛП-19А. Предложенная математическая модель позволяет определять вибрационное воздействие на организм оператора ВПМ на стадии разработки конструкторской документации. The article discusses vibroloading of the operator feller buncher mode lift the tree by an arrow. The study was conducted on a mathematical model of biodynamic system «operator - Feller Buncher - tree». Mathematical description is made in the form of Lagranzhe equations of the second kind. Model of the operator is presented in the form of two-mass. During the study varied: acceleration arrows in the range of 0,2…0,8 rad/s2. Calculations are made to the source data in relation to the feller bunchers LP-19А.Proposed a mathematical model to determine the vibration effects on the body of the operator of the FB in the development stage of the design documentation.

Moving Target Tracking Based on Trajectory Prediction

2014 ◽  
Vol 1070-1072 ◽  
pp. 2062-2065
Author(s):  
Yu Bing Dong ◽  
Ying Sun ◽  
Ming Jing Li
Keyword(s):  
Mathematical Model ◽  
Target Tracking ◽  
Tracking System ◽  
Moving Target ◽  
Improved Method ◽  
Trajectory Prediction ◽  
Tracking Method ◽  
Moving Target Tracking

An improved tracking method based on trajectory prediction is proposed and studied. The moving target tracking system is given and described. In order to fast and efficient tracking, a mathematical model of trajectory prediction of moving target is established. A large of experiments are carried by MALTAB. The results show that the improved method is better, improves the tracking speed and tracking precision.

scholarly journals A Distributed Strategy for Target Tracking and Rendezvous Using UAVs Relying on Visual Information Only

Electronics ◽  
2018 ◽  
Vol 7 (10) ◽  
pp. 211 ◽  
Author(s):  
Marco Andreetto ◽  
Matteo Pacher ◽  
David Macii ◽  
Luigi Palopoli ◽  
Daniele Fontanelli
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Target Tracking ◽  
Kalman Filtering ◽  
Visual Information ◽  
Low Cost ◽  
Target Position ◽  
Simulation Data ◽  
Rendezvous Problem ◽  
Distributed Target ◽  
Distributed Kalman Filtering

This paper proposes a distributed target tracking solution using a team of Unmanned Aerial Vehicles (UAVs) equipped with low-cost visual sensors capable of measuring targets bearing information only. The team of UAVs moves along circular orbits and uses consensus–based distributed Kalman Filtering to identify the position of the target. We show that the centre of the orbit eventually converges to the target position using theoretical arguments and extensive simulation data. By using the same approach, we can solve the rendezvous problem: the team first scans an area in search of a target; as soon as one of the UAVs spots, the other components converge on the target position.

Target Tracking Based on QPSO Algorithm

2013 ◽  
Vol 328 ◽  
pp. 84-88
Author(s):  
Yao Ni ◽  
Wen Bo Xu
Keyword(s):  
Mathematical Model ◽  
Computer Simulation ◽  
Particle Swarm Optimization ◽  
Target Tracking ◽  
Nonlinear Problems ◽  
Swarm Optimization ◽  
Number Of Clusters ◽  
Model And Simulation ◽  
System Data ◽  
The Mathematical Model

This article paper proposes a FCM based QPSO algorithm to establish the mathematical model and simulation including the algorithm introduction, modeling and simulation. In the designed system , data is firstly clustered into classes by c-means algotithm so that each rule defines its own fuzzy sets, the number of fuzzy rules is also determined by the number of clusters..Then Quantum-behaved particle swarm optimization learning algotithm then used for optimising the parameters of the system. We illustrates the algorithm in details with computer simulation to solve nonlinear problems and compare the rusults between basic PSO and our algorithm.

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