anti counterfeit system using qr codes and various other applications
DESCRIPTION
A seminar on QR code presented by KS on August 26th 2011 as part of his 7th semester B.Tech courseTRANSCRIPT
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WINTERTemplate
ANTI01
COUNTERFIET SYSTEMUSINGQR CODES
A Seminar by
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02
What this talk is all about?
Introduction to QR code.
Biometrics for enhancing authenticity.
QR code encoding and decoding.
QR code preprocessing.
System Implementation.
Other cool applications of QR codes.
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03What is QR code ?
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04Tracking the ancestors
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05QR code Up close
Finding pattern
Timing Pattern
Alignment Pattern
Cell
Quiet Zone
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06What makes QR codes unique ?
Confidentiality of code.
All direction High speed reading.
Resistant to distorted images.
Data restoration functionality.
Linking functionality of Symbols.
Masking process
Direct marking
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07The rise and rise of Biometrics
“Your security is only as strong as its weakest link” -Anonymous
= Unique, permanent and universal
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08How Fingerprint matching works?
MATCHING WITHRECORDS
AND COMPLETING VERIFICATION
EXTRACTION
Key terms : Minutiae ? Arithmetic coding ? CCD?
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09Bird’s Eye View Of QR code Encoding
Finger print
acquisition
Feature Extracted Encryption QR Code
Encoding
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10Bird’s Eye View Of QR code Decoding and Verification
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11QR code preprocessing scheme
a) IMAGE LOCALISATION
Edge ExtractionObtaining
rotation angle
Convolution of obtained
image using sobel operator
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12QR code preprocessing scheme
b) ROTATION
QR code ROTATED
Applying rotation
Equation
Finding axis of center
Detecting image
edge
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13QR code preprocessing scheme
b) Other Tweaks
Perspective Transformation
Ie When we acquire QR code image, the plane in which camera lies may not be parallel to QR image which result in foreshortening effect. Then perspective transformation can be adopted.
Interpolatation
In the mathematical field of numerical analysis, interpolation is a method of constructing new data points within the range of a discrete set of known data points.
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14System Implementation
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15Screen Shots of the system implemented
Encoding Fingerprint as QR code Real Time verification
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16Other Applications of QR code
Stationary order
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Bus commuters pass issuing system
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Passenger management system
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Patient Identification System
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Jewellery Certification
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Payment using QR codes
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23Creativity unleashed. Why QR codes stand out ?
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“The” Closing Remarks
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Questions?