ANSI INCITS 385-2004 pdf download Face Recognition Format for Data Interchange
4 Terms and definitions
For the purposes of this document, the following terms and definitions apply:
4.1 CBEFF (Common Biometric Exchange Formats Framework)
A data format specifically for exchanging biometric data. It provides for the encompassing of any biometric type into a standard format.
4.2 Color
A continuous tone image that has more than one channel, each of which is coded, e.g., with 8 bit.
4.3 Color Space
The number of bits used to define a pixel; defines the number of color or grey scales able to be assigned to each pixel.
4.4 Continuous Tone Image
An image whose components have more than one bit per sample.
4.5 DPI (Dots per Inch)
A measurement of scanner and printer resolution.
4.6 Grayscale
A continuous tone image that has only one luminance channel coded, e.g., with 8 bit. Also referred to as a monochrome or black-and-white image.
4.7 Facial Image
An electronic image based representation of the portrait of a person
4.8 Human Examination
The process of careful human comparison of a face image with a person or another face image to ascertain the identity of the respective person by a detailed examination of facial features and structures.
4.9 Human Verification
The process of human comparison of a face image with a person or another face image to ascertain the identity of the respective person in a short time period. One-to-one (1:1) matching.
4.10 Identification
The process of searching though a list of face images to match against an input image(s). One-to-many (1:N) searching.
4.11 ICAO (International Civil Aviation Organization)
Sets the standards for Machine Readable Travel Documents.
4.12 Image A two-dimensional representation that encodes the luminance and texture of an object in a given lighting environment.
4.13 JPEG JPEG is one of two proposed compression standards for continuous tone images, the other being JPEG2000. JPEG baseline standard was published in 1994 as ISO/IEC 10918-1 and ITU-T Rec. T.81. It was produced by the Joint Photographic Experts Group.
4.14 JPEG2000 JPEG2000 is one of two proposed compression standards for continuous tone images, the other being JPEG. It was published in 2000 as ISO/IEC 15444-1. 4.15 Feature Point Reference point(s) in a face image as used by face recognition algorithms, e.g., position of the eyes. Commonly referred to as a landmark.
4.15 Pixel A pixel is a picture element – one on an n by m matrix of picture elements, where n is across (horizontal) and m is down (vertical). In this document, n and m are measured from the top left corner of the image.
4.16 Portrait A photograph of a person. The portrait will include the full head with all hair in most cases, as well as neck and top of shoulders.
4.17 Verification The process of ascertaining that two images or image inputs represent the same person. One-to-one (1:1) matching.
5 The Face Record Format
5.1 Overview The face pattern record format is used to provide interoperability between uses of face recognition systems and digital face image storage systems.