title: Contrast enhancement amplifier for television microscopy.
abstract: A video amplifier is described for the purpose of enhancing the contrast of televised scene features. The system operates by amplifying the video signals bracketed by selectable gray levels, in such a fashion that the features of interest take up the whole dynamic range of the video display. The system operates and can be used directly in conjunction with on line video processors such as automated microvessel diameter measuring systems and video blood cell velocimeters.
authors.affiliation: AMES-Bioengineering, University of California, San Diego, La Jolla 92093.
authors.forename: M
authors.initials: M
authors.lastname: Intaglietta
authors.forename: W R
authors.initials: WR
authors.lastname: Tompkins
mesh_terms: D000669:Amplifiers, Electronic; D000818:Animals; D006224:Cricetinae; D008853:Microscopy / Q000295:instrumentation* / Q000379:methods; D012867:Skin / Q000166:cytology; D014741:Video Recording / Q000295:instrumentation* / Q000379:methods