Glossary
© National Instruments Corporation G-9 IMAQ PCI/PXI-1411 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).
ROI Re gio n o f in te res t. 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.
RSE Referenced single-ended. All measurements are made with respect to a
common reference measurement system or a ground. Also called a
grounded measurement system.
S
s Seconds.
S-Video A type of color video transmission where timing and luma information are
transmitted on one analog signal and chroma is transmitted on a separate
analog signal.
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-gathe r 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.