Document Authenticity Verification via Vector Encoding

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Solution Overview

Problem

The manual review of millions of travel documents for authenticity is slow, inefficient, not scalable, and expensive, leading to inconvenient delays for travelers.

Innovation Solution

A method using an electronic device to receive an image of a document, assign a label based on the document's text, and encode it into a low dimensionality vector for comparison against a database, determining authenticity based on calculated distances and thresholds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual review of documents is performed, then authenticity can be determined with high accuracy, but the process becomes slow and inefficient

Engineering Contradiction:
Improveauthenticity determination accuracyVSAvoiddocument review speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent introduces an intermediary system consisting of image encoding, vector representation, and similarity calculation mechanisms that bridge manual review accuracy with automated processing speed. The system encodes document images into vectors and calculates similarity metrics against authentic document templates, serving as a mediator that provides both speed and accuracy without requiring full manual review of each document.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If manual review of each document is performed, then fraudulent documents can be detected, but the cost and time consumption increase significantly

Engineering Contradiction:
Improvefraud detection capabilityVSAvoidprocessing time per document
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies partial action by performing automated similarity comparison on all documents and reserving manual review only for cases where the automated system detects potential fraud or low confidence matches. This selective approach maintains high fraud detection capability while significantly reducing the time loss associated with reviewing every single document manually.

Inventive Principle:
Principle #16Partial or excessive action

3Quantity of substance

If the volume of document reviews increases to handle millions of travelers, then travel demand can be met, but manual review becomes non-scalable and expensive

Engineering Contradiction:
Improvenumber of documents reviewedVSAvoidreview system complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical manual review system with an automated computational system that uses image encoding, vector mathematics, and similarity algorithms. This substitution enables the system to handle millions of documents efficiently, as the automated system can process documents in parallel without the complexity and cost constraints of scaling human reviewers.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Productivity

If automated image processing is used, then processing speed increases, but the ability to detect subtle fraudulent modifications decreases

Engineering Contradiction:
Improvedocument processing speedVSAvoiddetection of subtle fraud
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The patent performs preliminary automated filtering and similarity comparison to quickly identify obviously authentic or fraudulent documents. For documents that pass the initial automated screening or show ambiguous results, the system prepares them for more detailed examination, ensuring that subtle fraudulent modifications are not missed while maintaining high overall processing speed.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12293599B2Methods and systems for determining authenticity of a document
Publication Date: 2025.05.06 DAON TECH
  • US12293599B2 patent drawing
  • US12293599B2 patent drawing
  • US12293599B2 patent drawing

AI summary

A method for determining authenticity of a document is provided that includes receiving, by an electronic device, an image of a document, assigning a label to the image, and obtaining vectors for each image in a subset of images. Each image is of a document and is assigned the same label as the received image. Moreover, the method includes encoding the received image into a vector, calculating a distance between the vector of the received image and each obtained vector, comparing each of the calculated distances against a threshold distance, and calculating a number of the calculated distances that are less than or equal to the threshold distance. In response to determining the calculated number is at least equal to a required number, the document in the received image is determined to be authentic. Otherwise, the received image requires manual review.