Most of the current haptic rendering techniques model either force-interaction through a pen-like tool or vibrationinteraction on the finger tip. Such techniques are not able, nowadays, to provide force-feedback of the interaction through the human hand. In this paper, we address some of the computational challenges in computing haptic feedback forces for hand-based interaction. We describe a h...

In this report a new approach for haptic volume interaction with rigid bodies is described. The main goal of our system is to build a bone fragment assembly system. 3D object manipulation is made possible using two haptic devices. The interaction points represent the fingertips of the user. The system includes several components; such as 3D Voronoi diagram calculation for distance field computa...

Modeling cuts, bleeding and the insertion of surgical instruments are essential in surgical simulation. Both visual and haptic cues are important. Current methods to simulate cuts change the topology of the model, invalidating pre-processing schemes or increasing the model's complexity. Bleeding is frequently modeled by particle systems or computational fluid dynamics. Both can be computational...

Virtual reality technologies are increasingly being applied to various fields. Recently, from the importance of the sense of touch for human-computer interaction, the force feedback devices have been developed and put into practical use. For high fidelity simulation of phenomena in real-world, the haptic information such as weight, friction, and elasticity etc., are important. In this paper we ...

Haptic interaction is an increasingly common form of interaction in virtual environment (VE) simulations. This medium introduces some new challenges. In this paper we study the problem arising from the difference between the sampling rate requirements of haptic interfaces and the signi cantly lower update rates of the physical models being manipulated. We propose a multirate simulation approach...

OBJECTIVE The Development of a Novel Mixed Reality (MR) Simulation. An evolving training environment emphasizes the importance of simulation. Current haptic temporal bone simulators have difficulty representing realistic contact forces and while 3D printed models convincingly represent vibrational properties of bone, they cannot reproduce soft tissue. This paper introduces a mixed reality model...

An important application of haptic technology to digital product development is in virtual prototyping (VP), part of which deals with interactive planning, simulation, and verification of assemblyrelated activities, collectively called virtual assembly (VA). In spite of numerous research and development efforts over the last two decades, the industrial adoption of haptic-assisted VP/VA has been...

This paper presents a simulation system which integrates a realtime hand sensing and force-feedback interface (the Rutgers Master II) with a full body modeling software (JACK ). The RM– II system and the Polhemus Fastrak 3D magnetic tracker were initially integrated with “JACK" full-body simulation software. The system performance (graphics update rates, sensor reading updates) is evaluated on ...

This paper addresses the implementation of complex multiple degree of freedom virtual environments for haptic display. We suggest that a physics-based approach to rigid body simulation is appropriate for hand tool simulation, but that currently available simulation techniques are not sufficient to guarantee successful implementation. We discuss the desirable features of a VE simulation, specifi...

In this thesis, we are interested in the treatment of interactions between 3Dobjects in the specific context of haptic assemblies. The aim of the thesis isto study the different dynamic modes that are applicable to the simulation ofCAD assemblies. This field of research involves several scientific and technologicissues on the coupling of haptic interfaces with dynamic simulation...