Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 62 for “"VICON"”.
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A comparison of 3D gait models based on the Helen Hayes Hospital marker set
… three commercial gait analysis packages, Vicon Clinical Manager (VCM), GaitLab 2.0 (GL) and Peak Motus 2000 (PM) with a standard model developed using the Vicon BodyBuilder (BB) software package. All these packages use the same modified Helen Hayes Hospital marker set for external marker …
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Validation of a novel 2D motion analysis system to the gold standard in 3D motion analysis for calculation of sagittal plane kinematics
… video (Basler Ace series) and a 12 camera Vicon T-series 3D motion capture system were used to synchronously capture participants gait (100Hz). Parameters under investigation were shank to vertical angle, thigh to vertical angle, and knee joint centre flexion angle. Data processing was …
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Design and Development of a High-Performance Quadrotor Control Architecture Based on Feedback Linearization
… using direct motor speed control within a Vicon motion capture system environment. A Ground Control Station (GCS) acts as a user interface for selecting flight patterns and displaying sensor values. An on-board Intel Edison embedded Linux computer acts as the quadrotor's controller. The …
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An artificially-intelligent biomeasurement system for total hip arthroplasty patient rehabilitation.
… device output was compared to the output of a Vicon motion analysis system which is considered the gold standard in clinical gait analysis. The Vicon system was used to show that the device developed did not itself affect the patients hip, knee or ankle gait cycle parameters when in use, and …
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Developmental limb apraxia in deaf children : an objective assessment
… child who presents with oral apraxia. The VICON 370 Motion Analysis System was adapted to objecitvely assess the presence of this disorder and to illustrate differences in patterns of movement between the experimental and control subjects.The execution of motor performance of praxic …
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In-Flight Testing & Verification of an Adaptive Distributed Fault-Tolerant Control Architecture
… system of four Crazyflie 2.1 quadcopters, a VICON motion capture system for tracking the drones, and the Crazyswarm software architecture to send commands to the Crazyflie and receive data from the VICON system. In this thesis, a simulation environment incorporating the distributed control …
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Using an empirical model of human turning motion to aid heading estimation in a personal navigation system
… subjects captured in a gait laboratory using a Vicon motion tracking unit is used for validation. The analysis of experimental data shows the heading computed by turn prediction augmented integration is more accurate than open loop gyro integration alone.
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Structural efficiency study of composite wing rib structures
… iterative process using the computer program VICON is used. The loadings considered include combinations of axial compression, shear, and lateral pressure. The loading ranges considered are broad enough such that the designs presented may be applied to other stiffened panel applications. An …
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Impairment in Dynamic Postural Control Following an Acute Lateral Ankle Sprain
… initiation, which will be assessed using the Vicon system and then compared to matched healthy control values. MANOVA revealed no significant difference in dynamic postural control following a lateral ankle sprain when compared to control group. Significant differences were found in range of …
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Design and Implementation of a Control System for a Quadrotor MAV
… and for an off-board PC autopilot that uses the Vicon computer vision system for position feedback. Through the combined effort of the on-board and off-board controllers, the quadrotor successfully demonstrates stable hover in both nominal and disturbed conditions.
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Coordinated part delivery using distributed planning
… a hardware system of 4 robots, connected to a VICON motion capture system for localization. We discuss the results of successful hardware and software testing of the system as a method of delivering parts around a construction site, and we discuss future plans to use the platform to assemble …
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INERTIAL MOTION CAPTURE SYSTEM FOR BIOMECHANICAL ANALYSIS IN PRESSURE SUITS
… rigid body angles measured through an external VICON optical motion capture system. This type of system is the industry standard, and is used here for independent measurement of body pose angles. By comparing the two sets of data, performance metrics such as BPMS system operational conditions, …
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Gelsight robotic fingertip
… a mapping between image points and ground truth vicon values, producing an 75% accuracy rate within a distance threshold, a value that can be improved with increased measurements and better image processing techniques. Further work focuses on image processing for shear, compliance, and contact …
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Biomechanical Investigation of Head Kinematics and Skull Stiffness
… exist for collecting kinematic data, such as Vicon motion analysis, video analysis, and sensors. Head trajectories from motion data and accelerometer data were plotted up to maximum forward excursion of the head for eight frontal sled tests, four conducted at Virginia Tech and four at the …
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Computational Modeling of the Helical Axis in the Human Knee--Detecting Changes in the Transverse Plane
… Innovative Sports Training, Chicago, IL) and Vicon Nexus 1.3 software system (Oxford Metrics Group, Oxford, UK). To test the algorithm under more controlled conditions and eliminate kinematic collection errors, a mathematical model was used. The cylinder model was used to obtain constrained …
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Nonlinear attitude control of spacecraft with strain-actuated solar arrays
… in beam are estimated using measurements from a Vicon motion capture system. The closed-loop system is tested in real-time to achieve controlled rotation of the cylinder.
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The Development of a Novel Pitching Assessment Tool
… attached to body segments using a 10-camera Vicon Motion Capture system along with two high-speed video cameras (rear and side view) to record each pitch during the experimental trials. The kinematic data was analyzed, after which the highest velocity fastball of each of the 11 pitchers was …
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The application of clinical gait analysis to running injuries
… of Cape Town with its three-dimensional Vicon 370 motion analysis system and Advanced Medical Technology industry® strain gauge force platform is appropriate for collecting data to study running style. These data include the movement patterns and estimated mechanical power and work …
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THE BIOMECHANICAL ASSESSMENT OF GAIT FOR STROKE PATIENTS AND THE IMPLICATIONS IN DIAGNOSIS AND REHABILITATION
… All subjects’ gait data were collected using Vicon Nexus® to obtain the gait parameters, kinetic, and kinematic parameters of the hip, knee, and ankle joints in three planes of both limbs. Participants were asked to walk along a 10 m walkway at a comfortable speed. There were ten trials of …
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Identification of the biomechanical performance determining factors of the 5 iron golf swing when hitting for maximum distance
… a twelve camera (250 Hz) motion analysis system (Vicon, Oxford Metrics, UK), Pro V Swing Analyser (Golftek, USA) and a pressure plate (100 Hz) (RSscan Lab Ltd., UK). Participants were divided into two groups, based on their ball launch speed (high vs. low). Those in the high ball speed group were …
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