Paper Info
Title
Towards Interactive Progressive Cutting of Deformable Bodies via Phyxel-Associated Surface Mesh Approach for Virtual Surgery.
Abstract
Interactive progressive cutting of deformable body is vital for surgical training/planning systems with resection operations. Unfortunately, it is challenging to robustly simulate this phenomenon with faithful reflection of user's motion. The underlying reason is that sophisticated boundary conditions should be considered for the consistency between scalpel motion trajectory and incision during progressive cutting. Meanwhile, both geometrical and physical primitives along cutting trajectory need to be updated for each step induced by topological modifications, which is time-consuming for interactive environment. To tackle the above-mentioned issues, we present a phyxel-associated surface mesh approach for interactive progressive cutting of deformable bodies. Our method is based on a hybrid geometry, including a triangular surface mesh and an internal physical point cloud (phyxels), and we employ the moving least squares shape function to achieve the fast bijective mapping. This structure can well decouple the mechanical modeling from the geometry processing, thus allowing efficient handling of topological modifications, mechanical response, and rendering issues. Furthermore, we propose tailored continuous collision detection and constrained bilateral triangulation methods for fast geometrical modification. Besides, a dynamic adaptation scheme is proposed to avoid material slivers along splitting trajectories and guarantee numerical stability of simulation. Experimental results demonstrate that our method can provide effective progressive cutting simulation with realistic mechanical response, and it has a great potential to be an efficient and versatile computational framework for interactive surgical cutting simulation with high fidelity.
Year
DOI
Venue
2018
10.1109/ACCESS.2018.2845901
IEEE ACCESS
Keywords
Field
DocType
Interactive progressive cutting of deformable bodies,phyxel-associated surface mesh,motion-incision consistency
Computer vision,Collision detection,Computer science,Geometry processing,Moving least squares,Triangulation (social science),Artificial intelligence,Solid modeling,Point cloud,Rendering (computer graphics),Trajectory,Distributed computing
Journal
Volume
ISSN
Citations 
6
2169-3536
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Weixin Si1479.93
Lu Jing26817.05
Xiangyun Liao34411.14
Qiong Wang43015.18