One of the four basic face recognition technologies is Eigenface, which means "one's own face." It employs 2-D grayscale images that represent distinctive features. Eigenface technology is patented by MIT (Massachusetts Institute of Technology). Image courtesy of Baback Moghaddam. Face recognition is the biometric technique of identifying individuals by facial features. Face recognition is a type of biometric analysis, which aims to identify people by using biological or anatomical human characteristics, such as fingerprints and handprints, iris patterns, voice patterns, and facial structure. More specifically, face recognition employs digital video cameras and software to capture an image, isolate a human face, and extract specific features of the face that do not change. Such features may be upper sections of the eye sockets, the area around the cheekbones, and the sides of the mouth. The individual's features are then compared to other feature-sets in a database of photographs. Face-recognition technology works with off-the-shelf PCs and video cameras, making this identification technology relatively inexpensive to install and operate. High-resolution images provide even better matches. There are four basic methods employed in face-recognition software: eigenface, feature analysis, neural network, and automatic face processing. Eigenface, which means "one's own face," employs 2-D grayscale images that represent distinctive features. MIT (Massachusetts Institute of Technology) patented this technology. Feature analysis is similar to Eigenface, but can better accommodate changes in facial movements, such as smiles and frowns. Neural network technology uses both the newly scanned face and the stored face to determine if there is a match. An algorithm looks at the similarity of unique features. Lastly, automatic face processing uses distances and distance ratios between obvious features such as eyes, the end of the nose, and corners of the mouth. Although it is an ideal application for security, the use of face recognition for public security
Products & Services
Biometrics software is used to confirm or determine a person’s identify based upon physiological or behavioral characteristics such as fingerprints, retinas or irises, voice and facial patterns, and hand measurements.
Access Control Systems
Access control systems are used to identify people before granting access to secure facilities.
Image Analysis Software
Image analysis software is used to enhance, identify or quantify features in an image by breaking down or applying digital image filters.
Vision sensors are industrial products that automate decisions and processes by the use of video cameras linked to application-specific software on a user interface. These are also known as machine vision systems, and are useful for measurement, pass/fail decisions, and inspection.
Welding Helmets and Goggles
Welding helmets and goggles provide personal and facial protection against intense light, weld spatter, and hot debris. They consist of a filtering light medium and a protective head and/or eye covering.
Topics of Interest
3 Recent Advances in Automatic Facial Expression Analysis
For automatic facial expression analysis, Suwa et al.  presented an early attempt in 1978 to analyze facial expressions by tracking the...
Robotics Institute, Carnegie Mellon University, Pittsburgh, PA 15213, USA. firstname.lastname@example.org
Because of its nonrigidity and complex three-dimensional (3D) structure, the appearance of...
Biometric technology is gaining popularity as an effective method of personal identification. eTrue Inc. combines face and fingerprint recognition to verify identity. The company's TrueFace software...
Four recent trends in automatic facial expression analysis are (1) diversity of facial features in an effort to increase the number of expressions that may be recognized; (2)...
Biometric technology is gaining popularity as an effective method of personal identification. As mentioned in the preceding article, law-enforcement officials used biometric technology as a...