3D Anatomical Model Material Property Determination via Video Displacement
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Solution Overview
Problem
Current methods for determining material property values for 3D virtual models of anatomical objects are complex and time-consuming, often failing to accurately simulate the physical deformation of real anatomical objects due to variations in material properties and external factors.
Innovation Solution
A system that identifies surface points on an anatomical object from video images, determines displacement values caused by physical forces, and defines material property values for a 3D virtual model based on these displacements, allowing for more accurate simulation of anatomical deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional methods are used to determine material property values, then the process is simpler, but the accuracy and realism of the 3D virtual model deformation simulation deteriorates
Solution Approach 1:
The system performs preliminary capture of video images showing the anatomical object under various physical forces before the actual simulation. This preliminary action allows the system to pre-determine displacement values and calculate material property values in advance, ensuring high accuracy during the simulation without adding complexity to the real-time process
Solution Approach 2:
The system introduces video image analysis and displacement tracking as intermediary steps between physical force application and material property determination. By using video images as an intermediary to capture and measure displacements, the system achieves high measurement precision while maintaining a manageable process complexity through automated image analysis
2Adaptability or versatility
If traditional methods are used to determine material property values, then the process is faster, but the ability to account for individual variations and external factors deteriorates
Solution Approach 1:
The system enables the anatomical object to serve itself by capturing its own deformation response through video images when subjected to physical forces. The displacement values are automatically extracted from the video images without requiring external measurement devices or manual intervention, allowing the system to adapt to individual variations efficiently
Solution Approach 2:
The system implements feedback by using the captured video images and measured displacements to iteratively refine and determine accurate material property values. This feedback loop allows the system to account for individual variations and external factors by continuously adjusting the material properties based on observed deformation behavior
3Reliability
If detailed measurement of displacements is performed, then the realism of deformation simulation is improved, but the time and computational resources required increase
Solution Approach 1:
The system replaces complex mechanical measurement devices with video image analysis to capture displacement data. By substituting physical measurement instrumentation with optical recording and digital image processing, the system achieves high measurement precision for realistic deformation simulation while significantly improving efficiency and reducing computational overhead
Data Source
AI summary
An illustrative virtual model simulation system may be configured to identify surface points on an anatomical object as depicted in one or more video images, determine a set of displacement values representative of a displacement of one or more of the surface points of the anatomical object caused by a physical force being applied by a physical tool to the anatomical object, and define, based on the set of displacement values and data representative of the physical force, one or more material property values for a three-dimensional (3D) virtual model of the anatomical object.