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
Separated at birth physical similarities to humorous effect. There were several "Separated at Birth?" books issued around the same time, with whimsical comparisons such as Mick Jagger vs. Don Knotts as the fictional film character "The Incredible Mr. Limpet". Separated at birth Separated at birth, usually phrased as a question, is a light-hearted media device for pointing out people who are unrelated but bear a notable facial resemblance, implying that they are twins who were separated soon after being born and presumably adopted by separate families. The title "Separated at Birth?" was a trademark of Spy Publishing Partners, the publishers of the now