Convergence of an annealing algorithm
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Free-form deformation of solid geometric models
SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
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Simulated annealing: theory and applications
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A virtual environment and model of the eye for surgical simulation
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Haptic rendering: programming touch interaction with virtual objects
I3D '95 Proceedings of the 1995 symposium on Interactive 3D graphics
Large steps in cloth simulation
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
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A scalable force propagation approach for web-based deformable simulation of soft tissues
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Parametric Eyeball Model for Interactive Simulation of Ophthalmologic Surgery
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Craniofacial Surgery Simulation
VBC '96 Proceedings of the 4th International Conference on Visualization in Biomedical Computing
Haptics Issues in Virtual Environments
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A constraint-based god-object method for haptic display
IROS '95 Proceedings of the International Conference on Intelligent Robots and Systems-Volume 3 - Volume 3
Three-dimensional facial model reconstruction and plastic surgery simulation
IEEE Transactions on Information Technology in Biomedicine
Visualization and simulation techniques for surgical simulators using actual patient's data
Artificial Intelligence in Medicine
A new virtual reality approach for planning of cardiac interventions
Artificial Intelligence in Medicine
A multimodal virtual environment for interacting with 3d deformable models
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Soft tissue deformation with reaction-diffusion process for surgery simulation
Journal of Visual Languages and Computing
A point-based simulation framework for minimally invasive surgery
ISBMS'10 Proceedings of the 5th international conference on Biomedical Simulation
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Modeling of tissue deformation is of great importance to virtual reality (VR)-based medical simulations. Considerable effort has been dedicated to the development of interactively deformable virtual tissues. In this paper, an efficient and scalable deformable model is presented for virtual-reality-based medical applications. It considers deformation as a localized force transmittal process which is governed by algorithms based on breadth-first search (BFS). The computational speed is scalable to facilitate real-time interaction by adjusting the penetration depth. Simulated annealing (SA) algorithms are developed to optimize the model parameters by using the reference data generated with the linear static finite element method (FEM). The mechanical behavior and timing performance of the model have been evaluated. The model has been applied to simulate the typical behavior of living tissues and anisotropic materials. Integration with a haptic device has also been achieved on a generic personal computer (PC) platform. The proposed technique provides a feasible solution for VR-based medical simulations and has the potential for multi-user collaborative work in virtual environment.