In other words, our faces have become our identities, and there little hope of remaining anonymous in a world where billions of photographs are taken and posted online every month.
Biometric technologies that once needed significant financial or computational resources have become dramatically cheaper and faster. The use of fingerprint readers is now commonplace. For example, some laptops include a fingerprint reader for biometric access control. Advances in DNA analysis mean that results are now available within a few minutes. Some of the newly developed technologies such as vein pattern recognition or facial recognition are already developed to maturity. Their use in various places of our everyday life is just around the corner…. Every individual is likely to be enrolled in one or several biometric systems. (my italics)
With a reasonably sized dataset (36 subjects), we show preliminary results indicating that not only can smartphones be used to identify a person based on their normal gait but also that there is potential to match gait patterns across different speeds.
Haptics can be seen as a mechanism to extract behavioral features that characterize a biometric profile for an identity authentication process. Generally, the haptic data captured during an individual interaction are very large (measured every few milliseconds) and with a high number of attributes (position, velocity, force, angular orientation of the end-effector and torque data, among others). Therefore, the behavioral haptic data that describe users are defined in terms of a large number of features, which adds complexity to the analysis.
… the wealth of stimuli suitable for cognitive biometrics provides a wealth of authentication schemes – game playing, listening to music, short video clips, as well as more traditional behavioural biometric approaches provide virtually an infinite amount of input stimuli for use as an authentication scheme. This holds for both static and continuous authentication modes – though the later provides many more opportunities to validate the user under a wide variety of stimulus challenges. This is one of the major advantages of the cognitive approach compared to anatomical biometrics such as finger prints and retinal scans. Further, this approach may suit more closely future person–computer interaction schema that may attempt to minimise traditional input devices such as keyboards and mice. As Julia Thorpe and colleagues proposed in 2005 – authenticating with our minds might be a reality in the near future – and certainly emotion based interactive gaming is already here (Thorpe et al., 2005).
Researchers at Georgia Technology Research Institute (GTRI) used an active radar to note the changes (in)heart volume over time (Greneker, 1997; Geisheimer and Greneker III, 1999). The physical deformation provides extensive information about the individual and the relative health of the heart itself along with respiration and other body movements and muscle flexor noises. This work for human identification is impressive because the potential standoff ranges are in excess of 1 km. The GTRI work formed the basis for Mazlouman et al. (2009) to characterise cardiac performance using microwave Doppler radar. Instead of attempting to provide surrogate ECG information, these researchers looked in the infrasonic range, i.e. < 20 Hz through ultra-wide band radar > 2 MHz. The researchers continually were able to collect reliable data between 2 and 10 metres …… Another measure of standoff cardiac measure was provided by (Parra and Da Costa, 2001). Interferometric data were collected from the pulsing of the carotid artery over time. The measurements were collected with an eye-safe laser…
The telescreen received and transmitted simultaneously. Any sound that Winston made, above the level of a very low whisper, would be picked up by it; moreover, so long as he remained within the field of vision which the metal plate commanded, he could be seen as well as heard. There was of course no way of knowing whether you were being watched at any given moment. How often, or on what system, the Thought Police plugged in on any individual wire was guesswork. It was even conceivable that they watched everybody all the time. but at any rate they could plug in your wire whenever they wanted to. You have to live - did live, from habit that became instinct - in the assumption that every sound you made was overheard, and, except in darkness, every movement scrutinized.