14-08-2012, 03:02 PM
IRIS scanning system
[attachment=31508]
INTRODUCTION
Iris recognition is an automated method of biometric identification that uses mathematical pattern-recognition techniques on video images of the irides of an individual's eyes, whose complex random patterns are unique and can be seen from some distance.Not to be confused with another, less prevalent, ocular-based technology, retina scanning, iris recognition uses camera technology with subtle infrared illumination to acquire images of the detail-rich, intricate structures of the iris. Digital templates encoded from these patterns by mathematical and statistical algorithms allow unambiguous positive identification of an individual.
Many millions of persons in several countries around the world have been enrolled in iris recognition systems, for convenience purposes such as passport-free automated border-crossings, and some national ID systems based on this technology are being deployed. A key advantage of iris recognition, besides its speed of matching and its extreme resistance to False Matches, is the stability of the iris as an internal, protected, yet externally visible organ of the eye.
The core algorithms that underlie iris recognition were developed in the 1990's by Professor John Daugman, Ph.D, OBE (University of Cambridge Computer Laboratory). These were licensed to many developers of commercial iris cameras and systems including LG Electronics, Oki, Panasonic, Sagem, IrisGuard, and Sarnoff Labs. As of 2008, Daugman's algorithms are the basis of all commercially deployed iris recognition systems, although many alternative approaches have been studied and compared in the academic literature in hundreds of publications. Iris recognition remains a very active research topic in computing, engineering, statistics, and applied mathematics.
Like face recognition, voice biometrics provide a way to authenticate identity without the subject's knowledge. It is easier to fake (using a tape recording); it is not possible to fool an analyst by imitating another person's voice. Iris scanning is a method of biometric identification; pattern recognition is used to determine the identity of the subject.
Iris scans create high-resolution images of the irides of the eye; IR illumination is used to reduce specular reflection from the cornea. The iris itself is a "good subject" for biometric identification, because it is an internal organ that is well protected, it is mostly flat and it has a fine texture that is unique even for identical twins.
Iris scans can be done regardless of whether the subject is wearing contact lenses or glasses. However, it is necessary for the system to take eye lids and eye lashes into account; both can obscure the necessary parts of the eye and cause false information to be added into automated systems.
Iris scans are extremely accurate.
Iris recognition is a biometric identification technology that uses high-resolution images of the irides of the eye. The iris of the eye is well suited for authentication purposes. It is an internal organ protected from most damage and wear, it is practically flat and uniform under most conditions and it has a texture that is unique even to genetically identical twins.
Iris recognition is accomplished by applying proprietary algorithms for image acquisition and subsequent one-to-many matching that were developed initially by John G. Daugman, Ph.D., OBE.
Iris recognition algorithms produce remarkable results. Daugman's algorithms have produced accuracy rates in authentication that are better than those of any other method. IrisCode, a commercial system derived from Daugman's work, has been used in the United Arab Emirates as a part of their immigration process. After more than 200 billion comparisons, there has never been a false match.
Earlier today, we revealed the future of security and advertising -- and how it will all fall under the watchful beam of an iris scanner. The company behind the technology, Global Rainmakers Inc., has big plans for the system, which is launching in the city of Leon, Mexico. To help wrap our heads around the project, we spoke with Jeff Carter, chief business development officer of GRI, to find out how it will change our lives.
What is an iris?
The colored part of the eye is called the iris. It is an internal organ that is part of the eye; protected by the eyelids It is the only internal organ of the body that is externally visible. The iris is depicted in the below drawing.
The iris has distinctive patterns that allow for very accurate person identification, far more accurate than fingerprints or facial recognition.
[attachment=31508]
INTRODUCTION
Iris recognition is an automated method of biometric identification that uses mathematical pattern-recognition techniques on video images of the irides of an individual's eyes, whose complex random patterns are unique and can be seen from some distance.Not to be confused with another, less prevalent, ocular-based technology, retina scanning, iris recognition uses camera technology with subtle infrared illumination to acquire images of the detail-rich, intricate structures of the iris. Digital templates encoded from these patterns by mathematical and statistical algorithms allow unambiguous positive identification of an individual.
Many millions of persons in several countries around the world have been enrolled in iris recognition systems, for convenience purposes such as passport-free automated border-crossings, and some national ID systems based on this technology are being deployed. A key advantage of iris recognition, besides its speed of matching and its extreme resistance to False Matches, is the stability of the iris as an internal, protected, yet externally visible organ of the eye.
The core algorithms that underlie iris recognition were developed in the 1990's by Professor John Daugman, Ph.D, OBE (University of Cambridge Computer Laboratory). These were licensed to many developers of commercial iris cameras and systems including LG Electronics, Oki, Panasonic, Sagem, IrisGuard, and Sarnoff Labs. As of 2008, Daugman's algorithms are the basis of all commercially deployed iris recognition systems, although many alternative approaches have been studied and compared in the academic literature in hundreds of publications. Iris recognition remains a very active research topic in computing, engineering, statistics, and applied mathematics.
Like face recognition, voice biometrics provide a way to authenticate identity without the subject's knowledge. It is easier to fake (using a tape recording); it is not possible to fool an analyst by imitating another person's voice. Iris scanning is a method of biometric identification; pattern recognition is used to determine the identity of the subject.
Iris scans create high-resolution images of the irides of the eye; IR illumination is used to reduce specular reflection from the cornea. The iris itself is a "good subject" for biometric identification, because it is an internal organ that is well protected, it is mostly flat and it has a fine texture that is unique even for identical twins.
Iris scans can be done regardless of whether the subject is wearing contact lenses or glasses. However, it is necessary for the system to take eye lids and eye lashes into account; both can obscure the necessary parts of the eye and cause false information to be added into automated systems.
Iris scans are extremely accurate.
Iris recognition is a biometric identification technology that uses high-resolution images of the irides of the eye. The iris of the eye is well suited for authentication purposes. It is an internal organ protected from most damage and wear, it is practically flat and uniform under most conditions and it has a texture that is unique even to genetically identical twins.
Iris recognition is accomplished by applying proprietary algorithms for image acquisition and subsequent one-to-many matching that were developed initially by John G. Daugman, Ph.D., OBE.
Iris recognition algorithms produce remarkable results. Daugman's algorithms have produced accuracy rates in authentication that are better than those of any other method. IrisCode, a commercial system derived from Daugman's work, has been used in the United Arab Emirates as a part of their immigration process. After more than 200 billion comparisons, there has never been a false match.
Earlier today, we revealed the future of security and advertising -- and how it will all fall under the watchful beam of an iris scanner. The company behind the technology, Global Rainmakers Inc., has big plans for the system, which is launching in the city of Leon, Mexico. To help wrap our heads around the project, we spoke with Jeff Carter, chief business development officer of GRI, to find out how it will change our lives.
What is an iris?
The colored part of the eye is called the iris. It is an internal organ that is part of the eye; protected by the eyelids It is the only internal organ of the body that is externally visible. The iris is depicted in the below drawing.
The iris has distinctive patterns that allow for very accurate person identification, far more accurate than fingerprints or facial recognition.