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The camera on the iPhone 5 are protected by a sapphire lens cover, as are all subsequent models. [56] In 2014, Apple consumed "one-fourth of the world’s supply of sapphire to cover the iPhone’s camera lens and fingerprint reader." [57] The quality of the sapphire on the lens cover has since been disputed. [58]
Fingerprint sensors can be found on mobile devices. The fingerprint sensor is used to unlock the device and authorize actions, like money and file transfers, for example. It can be used to prevent a device from being used by an unauthorized person. It is also used in attendance in number of colleges and universities.
The measure of the fingerprint image quality is in dots per inch (DPI). [8] Optical scanners take a visual image of the fingerprint using a digital camera. Capacitive or CMOS scanners use capacitors and thus electric current to form an image of the fingerprint. This type of scanner tends to excel in terms of precision.
The back houses a capacitive fingerprint sensor centered below the camera lens, which was decently reliable at the time of release. Both have stereo loudspeakers, one located on the bottom edge and the other doubling as the earpiece, the main one being the bottom edge speaker, and a 3.5 mm headphone jack.
This makes the video fingerprinting robust against limited changes in color—or the transformation of color into gray scale of the original video. Others have tried to reduce the size of the fingerprint by only looking around shot changes. [5] Video fingerprinting does not rely on any addition to the video stream.
Different kinds of camera lenses, including wide angle, telephoto and speciality. A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses (compound lens) used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.
The Pixel 5a includes dual rear-facing cameras located within a raised square module. The wide 28 mm 77 °F/1.7 lens has the Sony Exmor IMX363 12.2-megapixel sensor, while the ultrawide 107 °F/2.2 lens has a 16-megapixel sensor; the front-facing camera uses an 8-megapixel sensor. It is capable of recording 4K video at 30 or 60 fps. [1]
Cancelable biometrics is a way in which to incorporate protection and the replacement features into biometrics to create a more secure system. It was first proposed by Ratha et al. [57] "Cancelable biometrics refers to the intentional and systematically repeatable distortion of biometric features in order to protect sensitive user-specific data.