Brain Displacements and Deformations

Pilot Findings of Brain Displacements and Deformations during Roller Coaster Rides.

With 300,000,000 riders annually, roller coasters are a popular recreational activity. Although the number of roller coaster injuries is relatively low, the precise effect of roller coaster rides on our brains remains unknown. Here we present the quantitative characterization of brain displacements and deformations during roller coaster rides. For two healthy adult male subjects, we recorded he...

Physically-Based Deformations Constrained in Displacements and Volume

This paper presents a method of constraining physically-based deformable objects. In this method, an object can be defined locally in terms of kinetic and dynamic (mass, position, speed), and physical parameters (compressibility, elasticity, motor functioning). Several problems are solved: constant volume deformation, displacement constraints (fixed or moving required positions), and real objec...

Eye-specific IOP-induced displacements and deformations of human lamina cribrosa.

PURPOSE To measure high-resolution eye-specific displacements and deformations induced within the human LC microstructure by an acute increase in IOP. METHODS Six eyes from donors aged 23 to 82 were scanned using second harmonic-generated (SHG) imaging at various levels of IOP from 10 to 50 mm Hg. An image registration technique was developed, tested, and used to find the deformation mapping ...

Recovering Displacements and Deformations from 3D Medical Images Using Biomechanical Models

GestAction3D: A Platform For Studying Displacements And Deformations Of 3D Objects Using Hands

We present a low-cost hand-based device coupled with a 3D motion recovery engine and 3D visualization. This platform aims at studying ergonomic 3D interactions in order to manipulate and deform 3D models by interacting with hands on 3D meshes. Deformations are done using different modes of interaction that we will detail in the paper. Finger extremities are attached to vertices, edges or facets...