We have developed a 3D modelling system that can provide a stereo visualization in a back-projection screen environment. It takes a wireless interaction with user’s head and hand supported by a Vision Tracking System. Our model representation is based on the MeshLibrary, which is optimized for real-time rendering and can accommodate for changes of both vertex positions and mesh connectivity. Th...

Most of all interaction tasks relevant for a general three-dimensional virtual environment can be supported by 6DOF control and grab/select input. Obviously a very efficient method is direct manipulation with bare hands, like in real environment. This paper shows the possibility to perform non-trivial tasks using only a few wellknown hand gestures, so that almost no training is necessary to int...

There has been considerable interest in sketch based mesh modeling and editing, from the simple, intuitive interface of Teddy [1], to the more recent techniques to preserve detail in an existing mesh while modifying it with sketched strokes [2]. These approaches apply to editing a single mesh that is consistent in all views, but it is often the case in 2D animation that a character will have a ...

In this paper, we propose a stochastic approach for tracking articulated 3D human motion in the high-dimensional configuration spaces using synchronized multiple cameras. We seek for the globally optimal solutions of the likelihood with local memorization about the “fitness” of each body segment for a volume sequence directly in the 3D space instead of projecting a rough simplified body model t...

This paper presents an immersive 3D modeling system that realizes a new method for creating and manipulating 3D objects using non-instrumented hand gestures. Our model representation is based on a mesh library, which is optimized not only for real-time rendering, but also accommodates for changes of both vertex positions and mesh connectivity in real time. For performing the gesture interaction...

Rigid Body Simulation deals with trying to model real world physical situations computationally by applying Newton’s laws of motion to perfectly rigid bodies. Work done in this area is used in the animation industry, haptic displays in robotics, and 3D games, so there is a real need for algorithms that work in realtime. The two main areas of research in rigid body simulation are collision detec...

In this study, the challenges associated with conducting high-strain rate uniaxial compression testing experiments are highlighted. To address these challenges, DEFORM-3D simulation was explored as an alternative approach to experimental testing. Previously established constitutive constants obtained from low strain of three titanium (α + β) alloys were used input codes. From results, peak flow...

An adequate computer model of the process rolling flange details with inclined rolls has been built in software package DEFORM-3D. The analysis stress-strain state a detail was performed. rheological properties alloy L63 (62-65% Cu, 34.5-38% Zn) were experimentally studied. Value limits Cockcroft-Latham fracture criterion for are determined.