Browsing Link Foundation Modeling, Simulation and Training Fellowship Reports by Issue Date
Now showing items 21-40 of 52
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Enhancing Training and Presence in Virtual Environments Using Passive Haptics
(2001)One of the worst virtual environment experiences is to virtually contact something and feel nothing. Visual-haptic sensory conflicts are normally dominated by visual perception. Therefore, augmenting a high-fidelity ... -
COMPUTER GRAPHICS OPTIQUE: Optical Superposition of Projected Computer Graphics
(2001)We present some ideas and demonstrations for a hybrid projector-based rendering and display technique we call Computer Graphics Optique. Instead of partially overlapping projected images to achieve a wide-area display, ... -
Haptic-based Dental Procedure Training Simulator
(2005)Since the beginning of the last century, simulators have been widely used in military and aviation. Recently, the use of simulation in medicine and dentistry has brought the attention of the research community, looking ... -
Investigation of Egocentric and Exocentric Distance Perception in Virtual Environments: Application to Enhance Transfer of Training in Multi-model Ves
(2005)In this report we summarize the results for three experiments completed during the Link Fellowship period. The aim of the first and second experiments were to test the efficacy of a novel assessment procedure for determining ... -
Pre-computation Approach to Nonlinear Simulations of Deformable Objects
(2005)My research area involves building real-time interactive simulations of solid deformable objects. For example, liver tissue should defo1m realistically during a vi1tual surgery simulation. A virtual assembly simulation ... -
Creating Geo-Specific Road Databases for a Real-Time Interactive Driving Simulator
(2005)Geo-specific road database development is important to a driving simulation system and a very labor intensive process. Road databases for driving simulation need high resolution and accuracy. Even though commercial ... -
Automatic Detection and Segmentation of Robot-Assisted Surgical Motions
(2007)Robotic surgical systems such as Intuitive Surgical's da Vinci system provide a rich source of motion and video data from surgical procedures. In principle, this data can be used to evaluate surgical skill, provide ... -
Real-Time Regularized Ultrasound Elastography
(2009)This paper introduces two real-time elastography techniques based on analytic minimization (AM) of regularized cost functions. The first method (1D AM) produces axial strain and integer lateral displacement, while the ... -
Redirected Free Exploration with Distractors
(2009)Users in virtual environments often find navigation n1ore difficult than in the real world, Our new locomotion interface, Redirected Free Exploration with Distractors (RFED), enables users to walk in larger-than-tracked ... -
A Physics-based Modeling and Real-time Simulation of Biomechanical Diffusion Process through Optical Imaged Alveolar Tissues on Graphical Processing Units
(2009)Tissue engineering has broad applications fro1n creating the much needed engineered tissue and organ structures for regenerative medicine to providing in vitro testbeds for drug testing. In the later, application domain, ... -
Evaluating and Training Intraoperative Analysis of the Mitral Valve
(2013)Mitral valve repair is the recommended method of treating valve incompetency. However, the procedure is quite difficult and, as a result, underperformed due to surgeon’s need to predict the closed valve shape of the ... -
The Rapidly Reconfigurable Research Cockpit
(2015-09-01)The goal of the Rapidly Reconfigurable Research Cockpit (R3C) project is to create and evaluate a novel approach for aviation simulators. Our concept combines a virtual reality visual environment with the tactile feedback ... -
Haptics-based Cataract Surgery Simulator
(2015-09-01)Surgical training using computer-based simulators are being adopted by many medical specialties, mainly because they offer several advantages to traditional training methods involving animals or cadavers. This article ... -
Directed Feedback for Simulation-based Training in Robot-assisted Minimally Invasive Surgery
(2016)Surgical educators have recommended the need for objective and automated teaching tools for technical skills training. Current training platforms provide automated or manual global assessments that are based on ... -
Interactive Training of Teleoperated Robotic System for Real-time MRIGuided Steerable Needle Intervention
(2016-09-01)Needle-based interventions, also known as percutaneous interventions, are common approaches for diagnostic and therapeutic procedures including tissue biopsy, delivery of therapeutic agents and tumor ablation. Needle ... -
Effects of Visual-Vestibular Interactions on Navigation Tasks in Virtual Environments
(2016-09-01)Virtual environments (VEs) are increasingly used as a safe, cost-effective way to train first responders and military units to search buildings and urban environments. Trainees typically view the VE on a computer screen ... -
Eikonal+ training and simulation platform: enabling a new generation of optical systems
(2017)The year of 2016 was proclaimed by many to be the year of virtual/augmented reality [Forbes]. The public attention was captured by the idea of wearable and immersive devices that can be used for communication, training, ... -
Physical-Virtual Patient Bed
(2017-08-28)Currently healthcare practitioners use patient simulators such as actors, mannequins, and computer based simulations for learning and training.I am exploring effects of co-locating sensory cues (i.e. visual and haptic) vs ... -
Skin Deformation Feedback for Force Sensory Substitution in Teleoperation and Virtual Reality Training
(2017-08-28)For this work, we developed a wearable skin deformation device that is worn on the tip of the finger. The devices have two separate components, the first of which is a finger grounding interface that straps to the medial ... -
Mobile in-situ visualization
(2017-09-01)In this work we present a new distributed technique to geometrically calibrate multiple projectors on a fiducial free arbitrary surface using multiple casually aligned cameras where every point of the surface is seen by ...