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Designing a Vibrotactile Head-Mounted Display for Spatial Awareness in 3D Spaces
This paper designs and assess a haptic guidance technique for 3D environments and assessed a vibrotactile HMD made to render the position of objects in a 3D space around the subject by varying both stimulus loci and vibration frequency. Expand
Using the PhysX engine for physics‐based virtual surgery with force feedback
Higher latencies in physics engines, compared to what is necessary for real‐time graphics and haptics, offer significant barriers to their use in interactive simulation environments. Expand
Deformable Tissue Parameterized by Properties of Real Biological Tissue
This work presents several experiments towards the parameterization of the computerized soft tissues model for bio-tissues based on a mass-spring-like approach from the elastic properties of real materials. Expand
Anatomy-based joint models for virtual human skeletons
A new joint model for articulated human skeletons based in human anatomy and conceived for use in medical applications is described, which tries to overcome some limitations of other models used in computer graphics. Expand
Spatial discrimination of vibrotactile stimuli around the head
The assessment of the spatial resolution on the head is performed systematically varying the distance between pairs of stimuli in a standard-comparison approach and shows that the region around the forehead is not only the most sensitive, with thresholds under 5mm, but it is also the region wherein the spatial discrimination was felt to be easier to perform. Expand
Localized Magnification in Vibrotactile HMDs for Accurate Spatial Awareness
After performing a within-subject naive search task using a head-mounted vibrotactile display, it is found that increasing the density of the array locally provides higher performance in detecting directional cues. Expand
Design and Assessment of a Collaborative 3D Interaction Technique for Handheld Augmented Reality
A handheld-based interface for collaborative manipulations of 3D objects in mobile augmented reality that combines touch gestures and device movements for fast and precise control of 7-DOF transformations and investigates the effectiveness of simultaneous manipulations compared with the individual approach. Expand
Development of the VBLaST™: a virtual basic laparoscopic skill trainer
The FLS training tool box has now been adopted by the Society of Gastrointestinal Endoscopic Surgeons (SAGES) as an official training tool for minimally invasive procedures.
Efficient Surgical Cutting with Position-Based Dynamics
A novel method that uses position-based dynamics (PBD) for mesh-free cutting simulation and proposed solutions include a method to efficiently render force feedback while cutting, an efficient heat diffusion model to simulate electrocautery, and a novel adaptive skinning scheme based on oriented particles. Expand