Image Analysis Apparatus for Authenticity Verification via Feature Point Extraction
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Solution Overview
Problem
Existing image comparison methods are inefficient and time-consuming, particularly in distinguishing genuine from counterfeit products and performing safety inspections, due to limitations in quickly analyzing captured images against original images.
Innovation Solution
An image analysis method and apparatus that measures the distance between an object and the image analysis device, selects and compares feature points in captured and original images using a smart camera and customhouse server, enabling rapid and reliable image comparison and determination of authenticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing image comparison methods divide and compare images, then comprehensive comparison is achieved, but comparison speed decreases
Solution Approach 1:
The patent extracts and compares only key feature points from images rather than dividing and comparing entire images. This extraction approach maintains comprehensive comparison accuracy while significantly reducing processing time, directly resolving the contradiction between measurement precision and productivity
Solution Approach 2:
The patent segments the image comparison task into feature point extraction and feature point comparison stages. By focusing only on critical feature points rather than processing all image data, it achieves both accurate comparison and fast processing speed
2Measurement precision
If manual inspection of objects is performed, then detailed examination is possible, but time consumption increases
Solution Approach 1:
The patent replaces manual mechanical inspection with automated image capture and feature point comparison systems. This substitution maintains high inspection accuracy through systematic feature point analysis while eliminating time-consuming manual processes
Solution Approach 2:
The patent creates digital copies of objects through image capture and compares feature points from these copies against reference data. This copying approach enables detailed examination accuracy without requiring physical handling or prolonged inspection time
3Device complexity
If feature point comparison is performed without distance measurement, then processing is simpler, but image size matching accuracy decreases
Solution Approach 1:
The patent performs distance measurement between camera and object as a preliminary action before feature point comparison. This pre-measurement enables accurate image size matching and scaling, ensuring precise comparison while keeping the overall process systematic and manageable
Data Source
AI summary
The image analysis method may comprise the steps of: measuring a distance between a subject and an image analysis apparatus; outputting an image obtained by photographing the subject; selecting at least two feature points in the image of the photographed subject on the basis of information on the output feature points; calculating the relative size of the pre-stored original image of the subject on the basis of the measured distance; extracting feature points in the pre-stored original image of the subject, which correspond to the at least two selected feature points, on the basis of the calculated relative size; and comparing the image of the photographed subject with the original image on the basis of the selected feature points and the extracted feature points.