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Glossary of Terms
Composite Video
A single signal that includes both color video and timing information. NTSC and PAL
are composite video standards, while RGB is not.
DLL
Dynamic Link Library. The supplied DLLs form the software interface between a
Windows application and the DALSA Coreco hardware device.
Element
A data unit within the buffer, which may or may not be a pixel.
Interlaced
The standard television method of raster scanning, in which the image is the product of
two fields, each of which is made up of the image's alternate lines (that is, one field is
comprised of lines 1, 3, 5, etc., and the other is comprised of lines 2, 4, 6, etc.)
Monochrome
A video source with only one component, usually meant to refer to a black-and-white
composite signal. A monochrome composite video source has no chroma information.
Pixel
A single picture element, the smallest individual digital video component The number of
pixels describes the number of digital samples taken of the analog video signal. The
number of pixels per video line by the number of active video lines describes the
acquisition image resolution. The binary size of each pixel (that is, 8 bits, 15 bits, 24 bits)
defines the number of gray levels or colors possible for each pixel.
RGB
Red, Green, Blue. Commonly used to refer to a non-composite video standard which uses
these three colors in combination to generate a color video image.
Sapera++ Programmer's Manual
Glossary of Terms • 413