Information Code Reader Cell Quantization for Secure Decoding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional information code reading systems face security concerns when transmitting image data to servers, leading to increased transmission time and reduced reading speed due to the large size of image data.
Innovation Solution
Quantifying information code cells based on tone, color density, or luminance levels and transmitting this quantified cell information to the server for decoding, which reduces the data volume and transmission time while maintaining security by not transmitting decoded results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If image data is transmitted to the server for decoding, then security is improved by preventing third-party access to decoded information, but transmission time increases and reading speed decreases due to the large size of image data
Solution Approach 1:
The patent extracts only the essential cell information (quantified data representing light/dark cell patterns) from the full image data and transmits this reduced data to the server for decoding. This extraction approach maintains security by not transmitting complete image data while significantly reducing transmission size and time.
Solution Approach 2:
The patent segments the image data into discrete cell information units, where each cell is quantified independently based on its light/dark characteristics. This segmentation allows the system to transmit only the necessary decoded cell patterns rather than the entire image, reducing data volume while preserving decoding capability.
2Measurement precision
If complete image data is transmitted to the server, then decoding accuracy is maintained, but the data volume becomes too large for efficient transmission
Solution Approach 1:
The patent extracts only the essential cell information (quantified data representing light/dark cell patterns) from the full image data and transmits this reduced data to the server for decoding. This extraction approach maintains security by not transmitting complete image data while significantly reducing transmission size and time.
Solution Approach 2:
The patent changes the data representation parameters by quantifying cell information into discrete values (e.g., 0 for dark cells, 1 for light cells) rather than transmitting continuous image pixel data. This parameter transformation reduces data volume while preserving the essential information needed for accurate decoding.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
In an information code reader (20), an image is imaged by an imager (22). An information code (C) contained in the image is quantified in accordance with light-dark levels thereof (tones, color densities, or luminance levels thereof), thereby providing cell information by this digitization. The obtained cell information is transmitted to from the information code reader (20) to a server (30). In the server (30), based on the cell information received from the reader (20), the information code (C) imaged by the imager (22) is decoded. Decoded information is transmitted to the information code reader (20) so that the reader is perform control based on the decoded results.