Constraint-Based Simulation for Non-Rigid Real-Time Registration

Abstract : In this paper we propose a method to address the problem of non-rigid registration in real-time. We use Lagrange multipliers and soft sliding constraints to combine data acquired from dynamic image sequence and a biomechanical model of the structure of interest. The biomechanical model plays a role of regulariza-tion to improve the robustness and the flexibility of the registration. We apply our method to a pre-operative 3D CT scan of a porcine liver that is registered to a sequence of 2D dynamic MRI slices during the respiratory motion. The finite element simulation provides a full 3D representation (including heterogeneities such as vessels, tumor,. . .) of the anatomical structure in real-time.
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https://hal.inria.fr/hal-01160739
Contributor : Hadrien Courtecuisse <>
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  • HAL Id : hal-01160739, version 1

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Hadrien Courtecuisse, Igor Peterlik, Raffaella Trivisonne, Christian Duriez, Stéphane Cotin. Constraint-Based Simulation for Non-Rigid Real-Time Registration. Medicine Meets Virtual Reality, Feb 2014, Manhattan Beach, California., United States. ⟨hal-01160739⟩

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