We are looking for a highly motivated student to work on data assimilation and model parametrization for needle insertion applications.
The position will take place in Strasbourg within the MIMESIS team from Inria, the French National Institute for Computer Science and Applied Mathematics.
One of the main research interests of the MIMESIS team is to propose numerical methods and dedicated physics-based models (such as a model of flexible needle based on Euler-Bernoulli theory) to meet the real-time requirement necessary for intra-operative scenarios. Although the models are validated experimentally, they typically rely on parameters that are not known in a patient specific scenario. The MIMESIS team has been investigating numerical approaches to estimate and refine model parameters from image data acquired during the simulation. Similar approaches have been employed in augmented reality applications in order to provide visual assistance to surgeons but also in robotic systems to provide gesture assistance. Current solutions proposed by the team focus on the estimation of stiffness parameters that mainly impact the deformation of tissues. Nonetheless, there are other parameters significantly influencing the accuracy of the simulation of the needle insertion (e.g., friction and fracture threshold) that cannot be directly extracted from the image data.