Glossary
© National Instruments Corporation G-7 IMAQ PCI-1428 User Manual
RGB Color encoding scheme using red, green, and blue (RGB) color information
where each pixel in the color image is encoded using 32 bits: 8 bits for red,
8 bits for green, 8 bits for blue, and 8 bits for the alpha value (unused).
ribbon cable A flat cable in which the conductors are side by side.
ROI Region of interest. A hardware-programmable rectangular portion of the
acquisition window.
ROM Read-only memory.
RTSI bus Real-Time System Integration Bus. The National Instruments timing bus
that connects IMAQ and DAQ boards directly, by means of connectors on
top of the boards, for precise synchronization of functions.
S
s Seconds.
saturation The amount of white added to a pure color. Saturation relates to the richness
of a color. A saturation of zero corresponds to a pure color with no white
added. Pink is a red with low saturation.
scaling down circuitry Circuitry that scales down the resolution of a video signal.
scatter-gather DMA A type of DMA that allows the DMA controller to reconfigure on-the-fly.
SDRAM Synchronous dynamic RAM.
SRAM Static RAM.
sync Tells the display where to put a video picture. The horizontal sync indicates
the picture’s left-to-right placement and the vertical sync indicates
top-to-bottom placement.
system RAM RAM installed on a personal computer and used by the operating system,
as contrasted with onboard RAM.
