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Real-time soft tissue deformation method and system for simulating biomechanical properties

A technology of biomechanical properties and soft tissue, applied in 3D modeling, special data processing applications, instruments, etc., can solve problems such as ignorance of material properties, and achieve the effect of fast speed and simple algorithm

Active Publication Date: 2017-11-07
EZHOU INST OF IND TECH HUAZHONG UNIV OF SCI & TECH +1
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Problems solved by technology

In these cases, physical accuracy is sacrificed for computational efficiency, and the system has no knowledge of the object's material properties

Method used

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  • Real-time soft tissue deformation method and system for simulating biomechanical properties
  • Real-time soft tissue deformation method and system for simulating biomechanical properties
  • Real-time soft tissue deformation method and system for simulating biomechanical properties

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Embodiment Construction

[0057] Such as figure 1As shown, the embodiment of the present invention provides a real-time soft tissue deformation method for simulating biomechanical properties, comprising the steps of:

[0058] S1. Generating soft tissue physical model data based on the three-dimensional visualization data of soft tissue organs;

[0059] S2. Generate collision detection model data based on soft tissue physical model data;

[0060] S3. Loading physical model data and collision detection model data through the game engine for collision detection;

[0061] S4. Calculating the deformed state of the soft tissue through a constrained optimization solution method.

[0062] In an embodiment of the present invention, the specific implementation of the step S1 is as follows: firstly analyze the topological structure of the soft tissue, because the deformation of the organ has an important relationship with the characteristics of the tissue structure. Characterization of these topology-related e...

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Abstract

A real-time soft tissue deformation method for simulating biomechanical properties is disclosed. The method comprises the steps of S1, generating soft tissue physical model data based on soft tissue organ three-dimensional visualization data; S2, generating collision detection model data based on the soft tissue physical model data; S3, loading the physical model data and the collision detection model data by a game engine for collision detection; and S4, calculating the state after soft tissue deformation through a constrained optimization method.

Description

technical field [0001] The invention relates to the technical field of computer graphics, in particular to a real-time soft tissue deformation method and system for simulating biomechanical characteristics. Background technique [0002] Surgical simulators can help trainers become familiar with real surgical procedures and operations without loss. It achieves scientific and repeatable training through visual rendering on software and interactive feedback on hardware manipulators. Compared with surgical training based on biological organs, its learning cost is low, and the training effectiveness is also guaranteed. The simulation of soft tissue deformation involves three key parts of the surgical simulator: the rendering of the surgical environment, the interaction of instruments and organs, and force feedback. Therefore it is the most important part in the development of a surgical simulator. Usually a good deformation algorithm makes the simulator closer to the clinical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06F19/00
CPCG06T17/00
Inventor 刘谦徐浪卢昱华李文成郭琛琛
Owner EZHOU INST OF IND TECH HUAZHONG UNIV OF SCI & TECH
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