Random Signature Extraction from Material Structural Characteristics
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Solution Overview
Problem
Existing signature extraction methods fail to guarantee unicity, leading to potential duplication of signatures for different material elements, regardless of sample size.
Innovation Solution
A method that extracts a random signature from structural characteristics of a subject material element using decomposition techniques, generating a random signature vector with stable and unstable components, which are near-independent and equiprobable, ensuring unicity and randomness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If signature extraction methods are used to identify material elements, then identification capability is improved, but signature unicity cannot be guaranteed leading to potential duplication
Solution Approach 1:
The invention extracts only the random components from the decomposition of acquisition vectors, separating them from deterministic components. This extraction of purely random elements ensures that signatures are unique to each material element's intrinsic structure, eliminating duplication while maintaining identification capability.
Solution Approach 2:
The invention transforms the signature representation by changing from deterministic feature extraction to random component extraction through decomposition. This parameter change in the extraction methodology ensures that signatures reflect inherent material randomness rather than processing artifacts, guaranteeing unicity.
2Reliability
If decomposition techniques are applied to extract random components, then signature randomness is improved, but processing complexity increases
Solution Approach 1:
The invention segments the signature extraction process into distinct phases: acquisition vector generation, decomposition into deterministic and random components, and extraction of random elements. This segmentation simplifies the overall complexity by breaking down the complex extraction task into manageable, well-defined steps.
Solution Approach 2:
The invention introduces decomposition vectors as an intermediary element that facilitates the separation of deterministic and random components. This intermediary structure enables systematic extraction of random elements without requiring complex direct analysis, reducing processing complexity while maintaining randomness.
3Loss of information
If algorithmic operations are performed after signature extraction, then signature processing is improved, but processing time increases
Solution Approach 1:
The invention performs preliminary decomposition and random component extraction during the signature generation phase, so that the resulting signature contains only random elements ready for use. This preliminary action eliminates the need for subsequent algorithmic processing to extract randomness, reducing processing time while maintaining signature quality.
Solution Approach 2:
The decomposition process inherently separates deterministic and random components, with the random components self-organizing into the signature vector. This self-service mechanism reduces the need for additional processing operations, as the extraction process itself produces the final random signature without requiring further algorithmic intervention.
Data Source
AI summary
The present invention concerns a method for extracting a random signature from a subject material element, comprising:a phase to generate at least one acquisition vector of structural characteristics of at least one region of the subject material element,a phase to generate at least one random signature vector from the acquisition vector, the random signature vector comprising:at least one random component having a stable nature so that its value may be found on each implementation of the method on one same region of the subject material element,and/or at least one random component having an unstable nature so that its value is likely to vary random fashion on each implementation of the method on one same region of the subject material element,use of the random signature vector as random signature.