Critical Energy Properties Study for Unsymmetrical Deformable Structures

The Critical Numbers for Unsymmetrical Approximation

Time-critical collision handling for deformable modeling

Collision handling is a comparatively timeconsuming task in dynamic simulations and the computational efficiency of collision handling techniques can vary significantly dependent on the spatial configuration of the environment. These issues have to be addressed in interactive simulations such as games or surgical simulators, where a pre-defined response time should be guaranteed for each simula...

Use of a Deformable Atlas to Identify Cryptic Critical Structures in the Treatment of Glioblastoma Multiforme

Dose constraints for traditional neural critical structures (e.g. optic chiasm, brain stem) are a standard component of planning radiation therapy to the central nervous system. Increasingly, investigators are becoming interested in accounting for the dose delivered to other non-target neural structures (e.g. hippocampi), which are not easily identified on axial imaging. In this pilot study, a ...

Time-critical animation of deformable solids

This article presents a model for handling multiresolution animation of complex deformable models. An octree-based animation method is described, along with the set of algorithmic tools, that allow for real-time interaction on complex objects. Some efficient collision detection scheme is also described for deformable objects. A method is presented for timeguaranteed mechanical simulation, that ...

Region-Based 2D Deformable Generalized Cylinder for Narrow Structures Segmentation

In this paper, we present a region-based deformable cylinder model, extending the work on classical region-based active contours and gradient-based ribbon snakes. Defined by a central curve playing the role of the medial axis and a variable thickness, the model is endowed with a region-dependent term.This energy follows the narrow band principle, in order to handle local region properties while...