Gemstone Shape Evaluation via Digital Image Overlay
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Solution Overview
Problem
Current gemstone grading methods do not effectively evaluate the similarity of a gemstone's shape to its purported shape, as standard reports are silent on how closely the gemstone resembles its reference shape, leading to a need for improved methods to assess and identify gemstone shapes.
Innovation Solution
The methods involve obtaining a test gem image, comparing it to one or more reference shapes, determining differences, and assigning a shape grade based on similarity or difference, with computer-implemented embodiments allowing for the identification of gemstone shapes by overlaying and calculating non-overlapping areas between the test gem and reference shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If standard grading reports are used to evaluate gemstone shape, then basic shape classification is provided, but the similarity of the gemstone to its purported shape cannot be determined
Solution Approach 1:
The patent creates digital copies (images) of the gemstone from multiple angles and compares these digital representations to reference shape images. This allows precise shape similarity evaluation without requiring complex physical measurement devices, as the digital images serve as sufficient copies for comparison analysis
Solution Approach 2:
The patent replaces traditional mechanical visual inspection methods with computer-based image processing and automated comparison algorithms. The system uses software to overlay test gem images with reference shape images and automatically calculate similarity metrics, eliminating the need for manual expert assessment
2Measurement precision
If multiple reference shapes are compared to identify gemstone shape, then accurate shape identification is achieved, but the evaluation process becomes more complex
Solution Approach 1:
The patent pre-establishes a library of reference shape images representing various gemstone shapes before the actual evaluation. This preliminary preparation allows the system to quickly compare the test gem against multiple predefined shapes simultaneously, rather than sequentially analyzing each possibility, thus reducing evaluation time while maintaining high identification accuracy
Solution Approach 2:
The patent divides the shape evaluation process into separate angular views (e.g., top view, side views from different angles). Each view is independently compared to reference shapes, and the results are integrated to provide comprehensive shape identification. This segmentation allows parallel processing of multiple comparison tasks, improving efficiency
Data Source
AI summary
This disclosure relates to methods of evaluating the shape of a gemstone, such as a diamond, ruby, emerald, or sapphire. Also provided are methods of identifying gemstone shape.