fingerprint scanning
41photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
42facial technology — n. The technology required to identify and track a person using face recognition techniques. Example Citation: Zelazny of Visionics said face recognition is less intrusive than iris scanning, another biometric identification technology. Aside… …
43Hash function — A hash function is any well defined procedure or mathematical function for turning some kind of data into a relatively small integer, that may serve as an index into an array. The values returned by a hash function are called hash values, hash… …
44Kilogram — Kg redirects here. For other uses, see Kg (disambiguation). Kilogram A computer generated image of the international prototype kilogram (IPK). The IPK is the kilogram. The IPK, which is roughly the size of a golf ball, sits here alongside a ruler …
45Osmium — This article is about the chemical element. For other uses, see Osmium (disambiguation). rhenium ← osmium → iridium Ru ↑ Os ↓ Hs …
46Electron energy loss spectroscopy — In electron energy loss spectroscopy (EELS) a material is exposed to a beam of electrons with a known, narrow range of kinetic energies. Some of the electrons will undergo inelastic scattering, which means that they lose energy and have their… …
47Presolar grains — are isotopically distinct clusters of material found in the fine grained matrix of primitive meteorites, whose differences from the surrounding meteorite suggest that they are older than the solar system [Maria Lugaro (2005) Stardust from… …
48Secure Digital card — Infobox media name = Secure Digital logo = caption = Pair of SD cards type = Memory card encoding = capacity = Standard SD: 8 MB to 4 GB SDHC: 1 GB to 32 GB [pricerunner.com 2008 08 27] (theoretical max for SDHC is 2 TB.) read = write = standard …
49Facial recognition system — A facial recognition system is a computer application for automatically identifying or verifying a person from a digital image or a video frame from a video source. One of the ways to do this is by comparing selected facial features from the… …
50Electronic signature — The term electronic signature has several meanings. Among the more expansive is that given by US law, influenced by ABA committee white papers and the uniform law promulgated by the National Conference of Commissioners on Uniform State Laws… …
