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Real-time deformation and cutting simulation of cornea using point based method

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Abstract

This paper proposed an improved point based method to simulate the deformation and cutting of cornea, realized the real-time interaction between the force feedback device and the model in virtual surgery. We construct a hybrid deformable model, the model consists of two parts: the interior of the cornea consists of some particles, and the boundary consists of some meshes which are formed by surfaces nodes, calculate the stress tensor of particle can simulate corneal deformation. In this process, in order to ensure the stability of the deformation, a volume constraint is added to our model. By sampling on the surface of the model to form some meshes, the model could support the changes of topology. Using a node replication method for surface cutting and subdivide the cutting triangles in the cutting process, so that it can generate relatively smooth incision. Experiments show that the model provides a real and efficient deformation simulation, with good stability and scalability.

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Acknowledgments

This work is supported by the National key research and development project of China under Grant No.2016YFC0801406, the Natural Science Foundation of Shandong Province under Grant No. ZR2015FM013, the National Natural Science Foundation of China under Grant No. 61502279, the National key research and development project of the Shandong Province under Grant No. 2016GSF120012, and by Special Project Fund of Taishan Scholars of Shandong Province, Leading Talent Project of Shandong University of Science and Technology.

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Authors and Affiliations

  1. College of Computer Science and Engineering, Shandong University of Science and Technology, Qingdao, China

    Yanjun Peng, Qiaoling Li & Yingying Yan

  2. Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China

    Qiong Wang

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  1. Yanjun Peng
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  2. Qiaoling Li
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  3. Yingying Yan
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Correspondence to Yanjun Peng.

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Peng, Y., Li, Q., Yan, Y. et al. Real-time deformation and cutting simulation of cornea using point based method. Multimed Tools Appl 78, 2251–2268 (2019). https://doi.org/10.1007/s11042-018-6343-4

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  • DOI: https://doi.org/10.1007/s11042-018-6343-4

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