Motion Capture Camera Configuration via Visibility Cost Analysis
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Solution Overview
Problem
Conventional optical motion capture technologies lack an effective method for properly configuring the number of cameras, leading to high costs without ensuring optimal capture effectiveness.
Innovation Solution
A method and apparatus for camera configuration that determines the optimal number of cameras and their positions within a preset view region by calculating the number of visible cameras for each test point and calculating a configuration cost value, allowing for the selection of the most desirable camera configuration mode based on these factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of motion capture cameras is increased, then the capture effectiveness is improved, but the system cost increases
Solution Approach 1:
The patent applies parameter changes by systematically varying the number of cameras, their positions, and their angular ranges to generate multiple configuration modes. Each configuration mode represents a different set of parameters (camera count, locations, fields of view), allowing the system to evaluate which parameter combination achieves optimal capture effectiveness at lowest cost.
Solution Approach 2:
The patent implements preliminary action by pre-calculating and pre-evaluating multiple camera configuration modes before actual motion capture operations. The system computes coverage metrics and cost values for each configuration mode in advance, enabling the user to select the optimal pre-configured方案 without needing to adjust cameras during runtime.
2Quantity of substance
If the number of motion capture cameras is reduced, then the system cost is reduced, but the capture effectiveness deteriorates
Solution Approach 1:
The patent uses parameter changes to explore different camera configuration scenarios, including reduced numbers of cameras. By systematically adjusting parameters such as camera positions and angular ranges, the system identifies configuration modes that achieve adequate capture effectiveness with fewer cameras, thus reducing cost while maintaining performance.
Solution Approach 2:
The patent applies partial action by selecting configuration modes that use fewer than the maximum possible number of cameras, depending on the specific motion capture requirements. The system determines the minimum sufficient number of cameras needed to achieve the required coverage and effectiveness, avoiding unnecessary cameras and associated costs.
3Reliability
If camera positions and angular ranges are optimized, then the capture effectiveness is improved, but the configuration complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-computing optimal camera positions and angular ranges for multiple configuration modes. The system performs the complex optimization calculations in advance, storing the results as ready-to-use configuration modes. This eliminates the need for users to perform complex manual configuration while still achieving optimized capture effectiveness.
Solution Approach 2:
The patent uses copying by creating multiple pre-configured camera arrangement templates that can be copied and applied to different motion capture scenarios. Each template represents an optimized configuration that can be quickly deployed without reperforming complex optimization calculations, thus reducing configuration complexity while maintaining effectiveness.
Data Source
AI summary
A camera configuration method solving the problem of lacking effective way to properly configure motion capture cameras in the conventional technologies, comprising: in a preset view region, determining a preset number of camera configuration modes according to camera parameters set by a user; setting a preset number of test points in the preset view region; calculating a number of visible cameras for each test point in each camera configuration mode; based on the number of visible cameras and a total number of cameras used for each camera configuration mode, calculating a configuration cost value for each camera configuration mode; and determining a final camera configuration mode based on the configuration cost value for each camera configuration mode. An effective way to properly configure the appropriate number of motion capture cameras is provided. The cost can be effectively saved while ensuring the effect of motion capture.