Adaptive Structured Light Projection Groups for 3D Reconstruction
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Solution Overview
Problem
Existing structured light projection methods are limited by fixed projection image sets, which fail to optimize imaging quality for varying scenarios, leading to suboptimal three-dimensional reconstruction quality and robustness.
Innovation Solution
A method and system that switch different projection image groups periodically or randomly to adapt to varying scenarios, using a minimum set of images required for three-dimensional reconstruction, and decode corresponding relations between imaging and projection positions to enhance reconstruction quality and robustness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fixed projection image sets are used, then the system is simple to operate, but the imaging quality cannot be optimized for varying scenarios
Solution Approach 1:
The patent implements dynamic switching between different projection image groups based on real-time scenario detection. The system transitions from static fixed projection to dynamic adaptive projection by detecting object characteristics and automatically selecting appropriate projection groups, thereby achieving both ease of operation and scenario adaptability
Solution Approach 2:
The system changes projection parameters by switching between multiple pre-designed projection image groups with different characteristics. Each group contains projection images with varying fringe densities, patterns, and parameters, allowing the system to optimize imaging quality for different scenarios by selecting the most suitable group
2Device complexity
If fixed projection image sets are used, then the system structure is simple, but the three-dimensional reconstruction quality is suboptimal
Solution Approach 1:
The patent segments the projection images into multiple groups, where each group contains projection images with specific characteristics suitable for different scenarios. This segmentation allows the system to maintain simple overall structure while achieving high reconstruction quality through selective use of specialized projection groups
Solution Approach 2:
The system performs preliminary action by pre-designing multiple projection image groups with optimized characteristics before actual measurement. This preparation enables the system to quickly adapt to different scenarios without complex real-time processing, maintaining simple structure while ensuring high reconstruction quality
3Stability of the object's composition
If fixed projection image sets are used, then the projection method is stable, but the robustness under varying conditions is poor
Solution Approach 1:
The patent creates a universal projection system that can handle multiple scenarios through multi-functional projection image groups. Each group is designed to address specific measurement conditions, and the system universally applies the appropriate group based on detected scenarios, thereby achieving both stability and robustness
Data Source
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AI summary
A projection method based on the three-dimensional scanning projection line of the structured light relates to three-dimensional information reconstruction technology field and comprises: switching different projection image groups periodically or randomly in three-dimensional measurements, to collect a plurality of continuous projection image groups (S101); projecting several images of the projection image group onto a surface of an object to be measured (S 102); imaging projection images projected onto the surface of the object to be measured to obtain imaged images (S103); and decoding the imaged images and determining a corresponding relation between respective imaging positions and projection positions, to provide three-dimensional information for reconstructing the surface of the object to be measured (S104).