Non-linear mass-spring system for large soft tissue deformations modeling

Modeling the feeding process in gill-box using non-linear mass-spring system

Stable Real-Time Deformations

The linear strain measures that are commonly used in real-time animations of deformable objects yield fast and stable simulations. However, they are not suitable for large deformations. Recently, more realistic results have been achieved in computer graphics by using Green’s non-linear strain tensor, but the non-linearity makes the simulation more costly and introduces numerical problems. In th...

Stable Deformations using Stiffness Warping

The linear strain measures that are commonly used in real-time animations of deformable objects yield fast and stable simulations. However, they are not suitable for large deformations. Recently, more realistic results have been achieved in computer graphics by using Green’s non-linear strain tensor, but the non-linearity makes the simulation more costly and introduces numerical problems. In th...

Simultaneous Topology and Stiffness Identification for Mass-Spring Models Based on FEM Reference Deformations

Mass-spring systems are of special interest for soft tissue modeling in surgical simulation due to their ease of implementation and real-time behavior. However, the parameter identification (masses, spring constants, mesh topology) still remains a challenge. In previous work, we proposed an approach based on the training of mass-spring systems according to known reference models. Our initial fo...

Physically Realistic Soft-Tissue Deformation in Real-Time

The use of haptics in virtual applications has become widespread in the last decade in several areas, especially in medical applications. After the integration of haptics, virtual medical simulations have been more popular than plastic tissue models or cadavers. Virtual environments are better for not only objective performance assesment but also creating desired scenarios in medical hands-on t...