Facial recognition system introduced varying technologies to the procedure. Some of the most notable include the following techniques: Some face recognition algorithms identify facial features by extracting landmarks, or features, from an image of the subject's face. For example, an algorithm may analyze the relative position, size, and/or shape of the eyes, nose, cheekbones, and jaw. These features are then used to search for other images with matching features. Other algorithms normalize a gallery of face images and then compress the face data, only saving the data in the image that is useful for face recognition. A probe image is then compared with
Emerging adulthood and early adulthood Coined by psychology professor Jeffrey Arnett, emerging adulthood has been known variously as "transition age youth", "delayed adulthood", "extended adolescence", "youthhood", "adultolescence", and "the twixter years". Of the various terms, "emerging adulthood" has become popular among sociologists, psychologists, and government agencies as a way to describe this period of life in between adolescence and young adulthood. Compared to other terms that have been used which give the impression that this stage is just a "last hurrah" of adolescence, "emerging adulthood" recognizes the uniqueness of this period of life. Currently, it is appropriate to define adolescence as the period spanning ages