06-04-2012, 10:48 AM
Biometrics
haha.pptx (Size: 321.67 KB / Downloads: 63)
INTRODUCTION
Biometrics is a rapidly evolving technology
Facilitates the automatic identification based on physical or behavioral characteristics
Eliminates the need to memorize a password or carry some form of token
Biometrics : A definition
Science and technology of measuring and statistically analyzing biological data that is represented in human by patterns unique to
every individual
DETAIL ANALYSIS OF IRIS SCANNING
Iris scan takes about 30sec & 2sec for verification
A camera located at about 3 feet focuses on & scans iris from one side
This scan is converted into a template
Only phase information is used for recognizing iris as amplitude information is depends on extraneous factors
Iris-code Generation
Gabor Filtering : Complex planar wave restricted to a 2-D Gaussian envelope
Aside from scale and orientation, the only thing that can make two
Gabor wavelets differ is the ratio between wavelength and the width of the Gaussian envelope.
Every Gabor wavelet has a certain wavelength and orientation, and can be convolved with an image to estimate the magnitude of local frequencies of that approximate wavelength and orientation in the image.
A jet of Gabor wavelets consists of numerous wavelets of different wavelengths and orientations. By convolving an image with a full jet of filters it is possible to quantify the magnitude and phase of the local frequency information within the bandwidths of the jet.
Gabor wavelets are formed through 2 components - a complex sinusoidal carrier and a Gaussian envelope.
ADVANTAGES OF IRIS SCANNING
Iris pattern posses high degree of randomness, variability & uniqueness
Patterns are apparently stable throughout life
Encoding & decision making are tractable
Image analysis & encoding time : 1sec
Search period : 100000 iris codes/sec
BIOMETRICS APPLICATIONS
Indian Initiatives
Bioenable Technology, Pune
Siemens Information System Ltd., Banglore
Axis Software, Pune
Jaypeetex ,Mumbai
Global Developments
Internet Security : Litronix, Usa
Windows Biometrics : Microsoft
Net Nanny Software International
Biometric Smart Cards : Polarid & Atmel
CONCLUSION
Your fingerprints, iris pattern, and voice will verify your identity
You can unlock your house or withdraw money from your bank with just a blink of eye, a tap of your finger, or by just showing your face
haha.pptx (Size: 321.67 KB / Downloads: 63)
INTRODUCTION
Biometrics is a rapidly evolving technology
Facilitates the automatic identification based on physical or behavioral characteristics
Eliminates the need to memorize a password or carry some form of token
Biometrics : A definition
Science and technology of measuring and statistically analyzing biological data that is represented in human by patterns unique to
every individual
DETAIL ANALYSIS OF IRIS SCANNING
Iris scan takes about 30sec & 2sec for verification
A camera located at about 3 feet focuses on & scans iris from one side
This scan is converted into a template
Only phase information is used for recognizing iris as amplitude information is depends on extraneous factors
Iris-code Generation
Gabor Filtering : Complex planar wave restricted to a 2-D Gaussian envelope
Aside from scale and orientation, the only thing that can make two
Gabor wavelets differ is the ratio between wavelength and the width of the Gaussian envelope.
Every Gabor wavelet has a certain wavelength and orientation, and can be convolved with an image to estimate the magnitude of local frequencies of that approximate wavelength and orientation in the image.
A jet of Gabor wavelets consists of numerous wavelets of different wavelengths and orientations. By convolving an image with a full jet of filters it is possible to quantify the magnitude and phase of the local frequency information within the bandwidths of the jet.
Gabor wavelets are formed through 2 components - a complex sinusoidal carrier and a Gaussian envelope.
ADVANTAGES OF IRIS SCANNING
Iris pattern posses high degree of randomness, variability & uniqueness
Patterns are apparently stable throughout life
Encoding & decision making are tractable
Image analysis & encoding time : 1sec
Search period : 100000 iris codes/sec
BIOMETRICS APPLICATIONS
Indian Initiatives
Bioenable Technology, Pune
Siemens Information System Ltd., Banglore
Axis Software, Pune
Jaypeetex ,Mumbai
Global Developments
Internet Security : Litronix, Usa
Windows Biometrics : Microsoft
Net Nanny Software International
Biometric Smart Cards : Polarid & Atmel
CONCLUSION
Your fingerprints, iris pattern, and voice will verify your identity
You can unlock your house or withdraw money from your bank with just a blink of eye, a tap of your finger, or by just showing your face