A Surface Mass-Spring Model With New Flexion Springs and Collision Detection Algorithms Based on Volume Structure for Real-Time Soft-Tissue Deformation Interaction
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TL;DR: Experimental results show that the proposed MSM with the DCDVS or the HCDVS can achieve accurate and stable shape restoration and show the real-time interactive capability in the virtual artery vessel and heart compared with the canonical surface MSM and new volume MSM.
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Abstract: A critical problem associated with surgical simulation is balancing deformation accuracy with a real-time performance. Although the canonical surface mass-spring model (MSM) can provide an excellent real-time performance, it fails to provide effective shape restoration behavior when generating large deformations. This significantly influences its deformation accuracy. To address this problem, this paper proposes a modified surface MSM. In the proposed MSM, a new flexion spring is first developed to oppose bending based on the included angle between the initial position vector and the deformational position vector, improving the shape restoration performance, and enhance the deformational accuracy of MSM; then, a new type of surface triangular topological unit is developed for enhancing the computational efficiency and better adapting to the different topological soft tissue deformational models. In addition, to further improve the accuracy of deformational interactions between the soft tissue and surgical instruments, we also propose two new collision detection algorithms. One is the discrete collision detection with the volumetric structure (DCDVS), applying a volumetric structure to extend the effective range of collision detection and the other is the hybrid collision detection with the volumetric structure (HCDVS), introducing the interpolation techniques of the continuous collision detection to DCDVS. Experimental results show that the proposed MSM with the DCDVS or the HCDVS can achieve accurate and stable shape restoration and show the real-time interactive capability in the virtual artery vessel and heart compared with the canonical surface MSM and new volume MSM.
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Citations
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Ma Tian,Li Yun,Jiaojiao Li,Yuancheng Li +3 more
- 01 Oct 2019
TL;DR: A simulation method in a wrapping manner for virtual gingiva based on the traditional Mass-spring model can effectively alleviate the problem of boundary wrinkles after gingival deformation in the case of large correction range, and improve the authenticity of the virtual orthodontic system.
3
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Dynamic Propagation Area to Simulate Soft Tissue Deformations Using Mass Spring Method
Mohd Nadzeri Omar,Muhammad Hilmi Jalil +1 more
- 01 Jan 2022
TL;DR: In this paper, the area of propagation is determined by identifying a distance from contact point where minimum displacement occurs using the Bossiness equation, which considers the material properties and the magnitude of the subject load.
Throat Modeling Based on Mass-Spring Method and Unity 3D for Surgery Traning
Liang Li,Yanfeng Pu,Ting Wang,Zhenxing Sun,Dekun Zheng,Yichen Zhong +5 more
- 26 May 2022
TL;DR: A virtual spring is constructed using Hooke’ s law, updating the velocity and position of the masses using Euler’s integral method and a spring mass model for a throat is constructed by generating the masses according to the model volume.
References
OBBTree: a hierarchical structure for rapid interference detection
Stefan Gottschalk,Ming C. Lin,Dinesh Manocha +2 more
- 01 Aug 1996
TL;DR: A data structure and an algorithm for efficient and exact interference detection amongst complex models undergoing rigid motion that can robustly and accurately detect all the contacts between large complex geometries composed of hundreds of thousands of polygons at interactive rates are presented.
Efficient collision detection using bounding volume hierarchies of k-DOPs
TL;DR: This work develops and analyzes a method, based on bounding-volume hierarchies, for efficient collision detection for objects moving within highly complex environments, and provides experimental evidence showing that this approach yields substantially faster collision detection than previous methods.
Efficient collision detection of complex deformable models using AABB trees
TL;DR: A way to speed up overlap tests between AABBs, such that for collision detection of rigid models, the difference in performance between the two representations is greatly reduced.
927
I-COLLIDE: an interactive and exact collision detection system for large-scale environments
Jonathan D. Cohen,Ming C. Lin,Dinesh Manocha,Madhav K. Ponamgi +3 more
- 15 Apr 1995
TL;DR: An exact and interactive collision detection system for large-scale environments, I-COLLIDE, based on pruning multiple-object pairs using bounding boxes and performing exact collision detection between selected pairs of polyhedral models.
780
Physically Based Deformable Models in Computer Graphics
TL;DR: This paper presents the most significant contributions of the past decade, which produce such impressive and perceivably realistic animations and simulations: finite element/difference/volume methods, mass‐spring systems, mesh‐free methods, coupled particle systems and reduced deformable models‐based on modal analysis.