Portable Terminal Image Verification for Fraudulent Visit Confirmation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems for confirming user visits to predetermined places, such as shops, face challenges in preventing illegitimate privilege acquisition through image copying or tampering, especially when the same posted material is used across multiple locations, and are costly due to the need for expensive BLE beacons or NFC devices.
Innovation Solution
A system that uses portable terminal devices to capture images of posted materials, generate normalization information by comparing the images with reference images, and send this information to a server for validation, which then determines the legitimacy of the viewing by computing similarities with authenticated images stored in association with location information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two-dimensional codes are attached to posted materials for identifying places, then it becomes possible to identify the place where the captured image is posted, but this results in considerably increasing the unit price and requires changing the manufacturing and distribution routes of existing posted materials
Solution Approach 1:
The patent uses image copying and processing techniques to extract posted material images from captured scenes. Instead of modifying the original posted materials with two-dimensional codes, the system captures images of the posters, extracts the posted material images through image processing, and uses these extracted images for identification and verification. This approach maintains the original posted materials unchanged while achieving place identification.
Solution Approach 2:
The patent replaces the mechanical approach of attaching physical two-dimensional codes to posted materials with an image processing-based system. The system uses computer vision and image recognition algorithms to detect, extract, and verify posted material images from captured scenes, substituting the need for physical code attachment with digital image analysis.
2Reliability
If BLE beacons or NFC devices are used to detect visits to predetermined places, then it becomes possible to confirm viewing accurately, but these devices are expensive and the costs would be high in the case where thousands of devices are installed nationwide
Solution Approach 1:
The patent replaces expensive physical BLE beacons and NFC devices with digital image copies. The system captures images of posted materials, extracts the posted material images, and uses these image copies for verification. This digital image-based approach eliminates the need for costly physical tracking devices while maintaining viewing confirmation accuracy.
Solution Approach 2:
The patent uses inexpensive printed posted materials with unique images as the basis for the verification system. These printed materials serve as the equivalent of expensive electronic devices, providing a low-cost, disposable solution that can be widely distributed without requiring complex electronic infrastructure.
3Adaptability or versatility
If the same posted material is posted in a plurality of places, then it becomes possible to increase service coverage, but with just an image in which the posted material is captured, it is not possible to identify in which place the posted material captured by the user is posted
Solution Approach 1:
The patent applies local quality by capturing and analyzing the peripheral region surrounding the posted material in addition to the posted material image itself. The peripheral region contains location-specific features (such as building facades, street signs, or distinctive background elements) that differentiate the same posted material when posted at different locations. This local contextual information enables place identification even when the posted material images are identical.
Data Source
AI summary
The system is for confirming that a user of a portable terminal device has viewed posted material in a plurality of places by visiting one of the posted places, the system including the portable terminal device and a server, the device including a portable-terminal control unit, a portable-terminal communication unit, an image capturing unit, a portable-terminal storage unit, and a position-information obtaining unit, the server including a server control unit, a server communication unit, and a server storage unit that stores authenticated images about the posted material in the individual posted places in association with position information of the posted places, wherein the portable-terminal control unit sends a viewing confirmation request including a viewed image, the normalization information, and the portable-terminal position information to the server by using the portable-terminal communication unit, and the server control unit determines whether the viewed image is valid on the basis of the request.