Microscan Quadrus EZ, User Manual, Page: 345 / 366

Quadrus EZ Reader User’s Manual
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Appendices
Region—Area of an image. Also called a region of interest for image processing opera-
tions.
Resolution, Image—The number of rows and columns of pixels in an image. A “higher”
resolution means that more pixels are available per element or symbol being read. For a
image sensor the total number of pixels, e.g. 640 x 480.
RS-170—The Electronic Industries Association (EIA) standard governing monochrome
television studio electrical signals. The broadcast standard of 30 complete images per
second.
Saturation—The degree to which a color is free of white. One of the three properties of
color perception along with hue and intensity (HSI).
Scattering—Redirection of light reflecting off a surface or through an object. See diffuse.
Symbol Transitions—The transition of bars and spaces on a symbol, used to detect the
presence of a symbol on an object.
Symbology—A code type, such as Code 39 or Code 128, with special rules to define the
widths and positions of bars and spaces to represent specific numeric or alphanumeric
information.
Tilt—Symbol (or reader) rotation around the centerline of the scan beam.
Trigger—A signal, transition, or character string that initiates a read cycle.
Watchdog Timer—A security device that detects system crashes and attempts to reset
the reader.