Curved Line Codes for ID Document Authentication
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Solution Overview
Problem
Physical and digital identification documents are susceptible to fraud and counterfeiting due to pre-configured security features that cannot be adjusted post-issuance, and existing security features like watermarks have limited payload capacity and are easily compromised.
Innovation Solution
Implementing perceptible curved line codes that can be seamlessly integrated into identification documents, providing robust alignment, rotation, and scaling resistance, and encoding customer data, which can be easily detectable by verification systems even when not perfectly aligned, and can be rendered as line drawings or screens to blend with the background.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pre-configured security features are used during issuance, then identification documents can be quickly issued, but the security features become susceptible to fraud and counterfeiting when compromised
Solution Approach 1:
The patent implements security features that can be dynamically changed after issuance. The identification documents include machine-readable codes and graphical user interfaces that allow authorized entities to update security features remotely, transforming static pre-configured features into dynamic adjustable features that can respond to security threats.
Solution Approach 2:
The patent changes the parameter of security feature adjustability from fixed to variable. By incorporating updateable machine-readable codes and backend systems, the security features can be modified in response to compromise events, allowing the same identification document to have different security states over time.
2Ease of manufacture
If general security features are used for a population of users, then the issuance process is simplified, but the identification becomes more vulnerable to widespread fraud
Solution Approach 1:
The patent applies local quality by making each identification document have unique, user-specific security features. Instead of uniform general security features, each document contains customized machine-readable codes and biometric data that are specific to individual users, allowing verification systems to distinguish between different users while maintaining streamlined issuance processes.
3Adaptability or versatility
If traditional watermarks are used for security, then the background blending is achieved, but the payload capacity is limited and detection is difficult
Solution Approach 1:
The patent transitions from traditional 2D watermarks to multi-dimensional machine-readable codes that can encode significantly more information. The machine-readable codes incorporate spatial arrangements, error correction codes, and layered information structures that increase payload capacity while maintaining visual integration with document backgrounds through careful design of the code patterns.
Data Source
AI summary
Some implementations provide a computer-assisted method for embedding information in an identification document. The method includes: modulating information by varying lengths of line segments; generating a line code that includes the line segments with corresponding lengths; and applying the line code on an identification document such that the information is used to authenticate the identification document as genuine when a person presents the identification document to verify an identify of the person.