Search results
Results from the WOW.Com Content Network
Iris scanner in action to identify people. 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.
Highly reliable because no two people have the same retinal pattern; Speedy results: Identity of the subject is verified very quickly; Disadvantages [12] Measurement accuracy can be affected by a disease such as cataracts; Measurement accuracy can also be affected by severe astigmatism; Scanning procedure is perceived by some as invasive
Laser types with distinct laser lines are shown above the wavelength bar, while below are shown lasers that can emit in a wavelength range. The height of the lines and bars gives an indication of the maximal power/pulse energy commercially available, while the color codifies the type of laser material (see the figure description for details).
Lasers are usually labeled with a safety class number, which identifies how dangerous the laser is: Class 1 is inherently safe, usually because the light is contained in an enclosure, for example in CD players; Class 2 is safe during normal use; the blink reflex of the eye will prevent damage. Usually up to 1 mW power, for example, laser pointers.
The laser has in most firearms applications been used as a tool to enhance the targeting of other weapon systems. For example, a laser sight is a small, usually visible-light laser placed on a handgun or a rifle and aligned to emit
For premium support please call: 800-290-4726 more ways to reach us
Police in Spain said on November 21 they had used open-source investigative techniques to geolocate footage posted on social media showing a driver shining a laser beam at a trucker and that the ...
Iris recognition biometric systems apply mathematical pattern-recognition techniques to images of the irises of an individual's eyes.. Iris recognition is an automated method of biometric identification that uses mathematical pattern-recognition techniques on video images of one or both of the irises of an individual's eyes, whose complex patterns are unique, stable, and can be seen from some ...