An overview of the function of biometric devices

It goes on to say that this is a classic feature of intelligence and military operations. One especially important lesson is that testing methods and results should be sufficiently open to allow independent assessment. This can be very difficult to replicate collectively. System requirements can range widely depending on the user context, the application context, and the technology context.

Finally, in case of decision level fusion the final results of multiple classifiers are combined via techniques such as majority voting. M Fahmy, Maged 5 November A study conducted among Yahoo users found that at least 1. If a token or a password is lost or stolen, it can be cancelled and replaced by a newer version.

The overall system then uses the matching results to accept or reject this hypothesis. Decision analysis and threat modeling are other critical areas requiring research advances.

Analyses the segments of the DNA to grant access to the users. The technology will analyze physiological features such as eye movement, body temperature, breathing etc. According to these characteristics, the sub-divided groups are: Fusion of the biometrics information can occur at different stages of a recognition system.

This reduces their real world application and hence makes biometrics insecure until these methods are commercially viable. This system also has the ability to learn from users as signature styles vary for the same user. Combinations of personal attributes like gender, race, eye color, height and other visible identification marks can be used to improve the performance of traditional biometric systems.

The potential for disenfranchisement means that some could be excluded from the benefits of positive claim systems, including access to buildings and information or qualification for jobs or insurance.

They are used to complement the identity information provided by the primary biometric identifiers.

Biometric device

One needs to specify the problem to be solved by a particular biometric system in order to adequately assess its effectiveness and deal with the consequences of deployment. It remains to be seen if fully automatic biometric systems can meet performance requirements as the number and scale of deployments increase.

Accuracy The goal of biometrics is to provide fast, accurate readingspreventing unauthorized access. According to Agamben, biometrics turn the human persona into a bare body. Circumvention relates to the ease with which a trait might be imitated using an artifact or substitute.

It was first proposed by Ratha et al. Selection of a biometric based on user requirements considers sensor and device availability, computational time and reliability, cost, sensor size and power consumption.


Additional areas meriting attention include representation and storage improvements and match-algorithm improvements. Therefore, fusion at the feature level is expected to provide better recognition results.

Although this increases the restrictions on the protection system, it makes the cancellable templates more accessible for available biometric technologies Soft biometrics[ edit ] Soft biometrics traits are physical, behavioral or adhered human characteristics that have been derived from the way human beings normally distinguish their peers e.

As biometric recognition is deployed in systems of national importance, additional research is needed at virtually all levels of the system including sensors, data management, human factors, and testing.

Basic research should be done on the stability and distinctiveness of biometric traits; the control of environmental noise when acquiring samples; the correlation of biometric traits with private information, including medical conditions; and the demographic variability of biometric traits.A biometric device is a security identification and authentication device.

Such devices use automated methods of verifying or recognising the identity of a living person based on a physiological or behavioral characteristic.

These characteristics include fingerprints, facial images, iris and voice recognition. An Overview of Biometric Image Processing. CHAPTER 2 Depending on the context of application, a biometric system function either in could sensor devices, computational time, reliability, sensor area, cost and power consumption.

Phases of Biometric System. A biometric device can be applied in virtually any application in which one might otherwise use keys, identification cards, security cards, personal identification numbers (PINs), or passwords to gain access to a physical facility, a virtual domain (information system), or a process, or to.

Overview of the Last Article Our last article reviewed what is deemed to be the "most stable Biometric of all"-Iris Recognition.

This modality actually has its originations back in the late s. There was only one vendor at the time, known as Iridian Technologies. Biometric devices have many functions. Biometric devices are a relatively modern technologyin use during the latter half of the 20th century; however, massive development and common use of biometric identification systems really began in.

What Are the Functions of Biometric Devices?

Biometric Recognition: Challenges and Opportunities addresses the issues surrounding broader implementation of this technology, making two main points: first, biometric recognition systems are incredibly complex, and need to be addressed as such.

Second, biometric recognition is an inherently probabilistic endeavor.

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An overview of the function of biometric devices
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