National Instruments Image Acquisition Software - Manual (Page 62)

Glossary
© National Instruments Corporation G-11 NI-IMAQ User Manual
resolution the smallest signal increment that can be detected by a measurement
system; resolution can be expressed in bits, in proportions, or in percent of
full scale. For example, a system has 12-bit resolution, one part in 4,096
resolution, and 0.0244 percent of full scale.
RGB red, green, and blue—the three primary colors used to represent a color
picture. An RGB camera is a camera that deliver three signals, one for each
primary.
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
RS-170 the U.S. standard used for black-and-white television
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 richness of a color. A saturation of zero corresponds to no color, that is,
a gray pixel. 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
SRAM static RAM
StillColor a post-processing algorithm that allows the acquisition of high-quality
color images generated either by an RGB or composite (NTSC or PAL)
camera using a monochrome video acquisition board.
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
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