Motion Capture VR System for Collaborative CAD Evaluation
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Solution Overview
Problem
Current technologies do not provide a collaborative immersive environment for evaluating designs, virtual training, and validating simulations with real-world interactions and feedback, lacking integration of motion capture and virtual reality with kinematics and CAD for effective design evaluation and training.
Innovation Solution
A collaborative visualization system integrating motion capture, virtual reality, and CAD, enabling users to interact with real and artificial environments through head-mounted displays and CAVEs, with real-time tracking and scaling of users and objects, and collision detection for immersive evaluation and training.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If motion capture and virtual reality technologies are used separately for their respective functions, then each technology can perform its basic function, but they cannot provide an integrated collaborative immersive environment for design evaluation and training
Solution Approach 1:
The patent combines motion capture technology, virtual reality technology, and telepresence technology into a single integrated collaborative visualization system. The motion capture system tracks user movements and interactions, the virtual reality simulator creates immersive 3D environments from CAD designs, and the telepresence system allows remote observation and interaction. These previously separate technologies are merged to provide a unified platform for design evaluation and training that enables collaborative immersive environments with multiple users and external observers simultaneously.
2Measurement precision
If detailed CAD designs are simulated in virtual reality with full-scale stereoscopic images, then design evaluation accuracy is improved, but the system complexity and computational requirements increase
Solution Approach 1:
The patent creates virtual copies of CAD designs in a three-dimensional virtual reality environment. The virtual reality simulator receives data from CAD designs and generates full-scale stereoscopic images that accurately replicate the design features, allowing users to interact with and evaluate the design as if it were physical. This copying approach enables detailed design evaluation without requiring physical prototypes, maintaining measurement precision while avoiding the complexity of building and testing actual prototypes.
3Measurement precision
If motion capture tracking is implemented for multiple users and objects in real-time, then interaction accuracy in the virtual environment is improved, but processing requirements and system complexity increase
Solution Approach 1:
The patent implements motion capture technology that continuously and automatically tracks user movements, interactions, and object positions in real-time before the users even interact with the virtual environment. The system preliminarily captures all motion data, then processes this data to generate corresponding avatar movements and interactions in the virtual reality simulation. This preliminary action approach ensures measurement precision for all movements while improving productivity by automating the tracking and translation process, eliminating the need for manual motion recording and processing.
4Adaptability or versatility
If a CAVE environment is used for immersive observation with multiple external observers, then collaborative evaluation capability is improved, but the hardware requirements and system complexity increase
Solution Approach 1:
The patent implements a CAVE (Cave Automatic Virtual Environment) system that serves multiple functions simultaneously: it provides immersive 3D visualization for design evaluation, enables telepresence for remote observers, supports multiple users interacting in the virtual environment, and allows external observers to view and interact with the simulation in real-time. This multi-functional approach improves collaborative observation capability while managing system complexity by consolidating multiple capabilities into a single integrated platform rather than requiring separate systems for each function.
Data Source
AI summary
A collaborative visualization system integrates motion capture and virtual reality, along with kinematics and computer-aided design (CAD), for the purpose, for example, of evaluating an engineering design. A virtual reality simulator creates a full-scale, three-dimensional virtual reality simulation responsive to computer-aided design (CAD) data. Motion capture data is obtained from users simultaneously interacting with the virtual reality simulation. The virtual reality simulator animates in real time avatars responsive to motion capture data from the users. The virtual reality simulation, including the interactions of the one or more avatars and also objects, is displayed as a three-dimensional image in a common immersive environment using one or more head mounted displays so that the users can evaluate the CAD design to thereby verify that tasks associated with a product built according to the CAD design can be performed by a predetermined range of user sizes.