Adaptive Image Templates for Post-Processing Object Authentication
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Solution Overview
Problem
Existing tracking systems face challenges in identifying and authenticating individual objects that undergo changes in appearance due to treatment or processing, leading to difficulties in matching images from different stages and increasing storage requirements for incidental patterns.
Innovation Solution
An authentication system using different templates for registration and authentication images, accounting for changes in object appearance, and employing image resizing and feature extraction to match partial images across stages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same template is used for both registration and authentication images, then the authentication process is simpler, but accurate authentication becomes impossible when object appearance changes due to treatment or processing
Solution Approach 1:
The patent applies dynamics by making the authentication template adaptable and deformable to match changes in object appearance. Instead of using a static template, the system dynamically adjusts the authentication template based on the registered template and the expected transformations, enabling accurate matching even when objects undergo processing that changes their appearance.
2Measurement precision
If incidental patterns are stored for tracking, then individual objects can be identified, but storage requirements increase significantly
Solution Approach 1:
The patent extracts only the essential features and characteristics needed for identification from the incidental patterns, rather than storing complete pattern data. By extracting key identifying features and using template-based matching, the system maintains object identification capability while significantly reducing the storage space required compared to storing full incidental pattern information.
3Loss of time
If images from different stages are compared directly, then the process is faster, but matching accuracy decreases when appearance changes occur
Solution Approach 1:
The patent applies preliminary action by pre-processing the authentication image through resizing and transformation adjustments before comparison with the registered template. This preliminary adjustment aligns the authentication image with the expected appearance changes, enabling both fast processing and accurate matching without requiring extensive post-processing or iterative adjustments.
Data Source
AI summary
An authentication system includes: a first imaging device that images an individual object in a first stage to generate a registration image; a second imaging device that images an individual object to be authenticated in the second stage to generate an authentication image; and a registration device configured to authenticate the individual object to be authenticated, by extracting a registration partial image from the registration image with use of a registration template to acquire registration image information, extracting an authentication partial image from the authentication image with use of an authentication template to acquire authentication image information, and determining whether the authentication image information and the registration image information represent a same individual object, the authentication template corresponding to the registration template, and having, with respect to the registration template, a difference in accordance with a treatment/processing.