3D Model Comparison Using Coarse-to-Fine Processing
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Solution Overview
Problem
Current systems for comparing three-dimensional models with real-world constructions face significant computational challenges, particularly with large constructions, leading to slow processing times that hinder real-time or near-real-time comparisons.
Innovation Solution
The implementation of a computing platform with specialized engines that perform a two-stage comparison process, first using low-resolution representations to identify significant differences and then high-resolution comparisons only on selected portions, significantly reducing computational burden and enabling real-time analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-resolution comparison is performed on entire large constructions, then measurement precision is improved, but processing time increases significantly
Solution Approach 1:
The patent divides the large construction into multiple zones or regions, processing each zone separately rather than performing a single comprehensive high-resolution comparison on the entire construction. This segmentation allows the system to manage computational load while maintaining accuracy in critical areas.
Solution Approach 2:
The system performs high-resolution comparison only on selected portions or zones of the construction that are most critical or show significant deviations, rather than uniformly applying high-resolution processing to the entire construction. This partial action approach maintains measurement precision where needed while reducing overall processing time.
2Manufacturing precision
If detailed geometric capture is performed on large constructions, then manufacturing precision is improved, but computational burden increases
Solution Approach 1:
The patent applies different levels of geometric detail and processing quality to different zones of the construction based on their importance and complexity. Critical areas receive detailed geometric capture and high-resolution processing, while less critical areas use coarser representations, thereby maintaining manufacturing precision where needed while reducing overall computational burden.
Solution Approach 2:
The system performs detailed geometric capture and processing only on selected portions of the construction that require high precision, rather than uniformly applying detailed processing to the entire construction. This approach maintains manufacturing precision for critical components while reducing computational burden overall.
3Productivity
If real-time comparison is achieved for large constructions, then productivity is improved, but measurement precision may deteriorate
Solution Approach 1:
The patent segments the construction into multiple zones that can be processed in parallel or sequentially with optimized resource allocation. This allows real-time comparison throughput while maintaining precision by distributing computational tasks across different processing units or time slices.
Solution Approach 2:
The system performs comprehensive high-precision comparison on selected critical zones rather than attempting uniform real-time processing of the entire construction. This partial action approach achieves real-time productivity for decision-making while maintaining measurement precision for the most important areas.
Data Source
AI summary
An actual subject and a computed three-dimensional (3D) model of the subject are compared by a computing platform. Captured geometry of the actual subject, and a 3D model of the subject are accessed. A first comparison result representing a difference between coarse representations of the captured geometry and of the 3D model is computed. Target portions of the first comparison result that exceed a threshold are determined. A second comparison result representing a difference between fine representations of the captured geometry and the 3D model is computed for only those portions of the captured geometry and the 3D model that correspond to the target portions.