Real Time Face Detection and Segmentation

摘要

Face detection is a computer technology used in a diversity of applications that identifies human faces in digital images. Face detection also refers to the psychological process by which humans locate and attend to faces in a visual scene. Face detection can be regarded as a specific case of object-class detection. In object-class detection, the task is to find the locations and sizes of all objects in an image that belong to a given class. Face-detection algorithms focus on the detection of frontal human faces. It is analogous to image detection in which the image of a person is matched bit by bit. Image matches with the image stores in database. Any facial feature changes in the database will invalidate the matching process. There are many algorithms busied for this topic each of which has its own characteristics and level of accuracy. In this paper, some of those algorithms will be discussed in addition to Viola-Jones Algorithm after getting in to the details of Face Detection's notion and applications.