Automatic Creation of Image-Based QR Codes (13323N)
IDA Technology Roadmap 2012
This technology falls in the following categories of Singapore's IDA Infocomm Technology Roadmap 2012:
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This invention is a method to automatically embed images in QR codes. The resulting QR code is better looking as it can convey a unique visual identity. The functionality expected of a QR code is also preserved.
The invention’s basic mechanism consists of two steps: 1) Global intensity determination, and 2) Sub-image minimization. The first step is subject to the condition that an estimated bit-error for decoding is below threshold. Both steps together minimize the difference between the barcode and the image.
This invention could be used to provide QR codes that while more clearly conveying the originator of the message can still provide additional information as standard QR codes. The invention could be used by companies needing to advertise their products and services; by companies or individuals who want to customize their logo, signage or any information that requires visual appeal; and by companies that wish to distribute different information, such as promotional codes or document IDs in a visual format.
Technology Readiness Level 7 on the scale by the Ministry of Defence Singapore.
About the Research Group
Dr. Ee-Chien Chang is an associate professor with research interests in multimedia and information security. Specific interests include protection of biometric information, multimedia forensic, privacy preserving computation and cloud security. This research is supported by SeSaMe (Sensor-enhanced Social Media) Centre.