Authentication Hologram with Latent Information and Polarizing Filter
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Solution Overview
Problem
Current methods for authenticating secure documents are inadequate due to advancements in reproduction technologies, as they can accurately replicate complex and intricate features, making it difficult to distinguish originals from copies.
Innovation Solution
The use of authentication holograms with latent information, integrated with various visual elements and a processing system that captures and decodes this information, reduces the impact of reflected light to detect and verify the authenticity of objects, employing image segmentation and proprietary decoding algorithms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication holograms with reflective material are used to prevent counterfeiting, then security and authenticity verification are improved, but reflected light obscures the hologram in captured images making detection difficult
Solution Approach 1:
The patent applies polarizing filters that change the optical properties of reflected light, allowing the authentication system to selectively block or transmit light based on polarization state. This enables the latent information to be detected by transforming the optical characteristics of the reflected light from the hologram.
Solution Approach 2:
The patent introduces polarizing filters as an intermediary element between the light source and the image capture device. These filters mediate the interaction between the reflected light from the hologram and the detector, enabling the system to distinguish authentic holograms from counterfeits by controlling the polarization state of the captured light.
2Reliability
If complex visual elements are added to hide authentication holograms from easy detection, then security is improved, but the system complexity increases
Solution Approach 1:
The patent makes the image capture device multi-functional by equipping it with both standard imaging capabilities and specialized authentication capabilities using polarizing filters. The same device can capture regular images and perform security verification, eliminating the need for separate specialized equipment and reducing overall system complexity.
Solution Approach 2:
The authentication hologram itself contains the verification mechanism through its reflective properties and latent information encoding. The system uses the hologram's own optical characteristics, verified through polarized light filtering, to authenticate itself without requiring external complex verification infrastructure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively differentiates original secure documents from copies by accurately detecting and verifying latent authentication information, enhancing security and preventing unauthorized reproduction.
Implementation Method 1
The authentication hologram is defined by a pattern of reflective material and includes latent authentication information. The program instructions are executable by the one or more processors to: (i) receive, from an image capture device, a digital image of the authentication hologram, wherein light reflected by the reflective material is captured in the digital image of the authentication hologram
Data Source
AI summary
An authentication system includes an object including an authentication hologram disposed over an area of a surface of the object. The authentication hologram is defined by a pattern of reflective material and includes latent authentication information. The system includes a computer-readable medium including program instructions for execution by one or more processors. The program instructions are executable by the one or more processors to: (i) receive, from an image capture device, a digital image of the authentication hologram, wherein light reflected by the reflective material is captured in the digital image of the authentication hologram, and (ii) detect the latent authentication information in the digital image of the authentication hologram, wherein an effect of the reflected light is reduced to detect the latent authentication information.