Glossary
©
National Instruments Corporation
G-7
NI-IMAQ for IEEE-1394 Cameras User Manual
resolution
(1) The number of rows and columns of pixels. An image composed of
m
rows and
n
columns has a resolution of
. This image has
n
pixels
along its horizontal axis and
m
pixels along its vertical axis. (2) The
smallest signal increment that can be detected by a measurement system.
Resolution can be expressed in bits, proportions, or a percentage 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
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
Region of interest. (1) An area of the image that is graphically selected
from a window displaying the image. This area can be used focus further
processing. (2) A hardware-programmable rectangular portion of the
acquisition window.
ROM
Read-only memory.
S
s
Seconds.
syntax
Set of rules to which statements must conform in a particular programming
language.
T
transfer rate
The rate, measured in bytes/s, at which data is moved from source to
destination after software initialization and set up operations. The
maximum rate at which the hardware can operate.
trigger
Any event that causes or starts some form of data capture.
U
UV plane
See
.
m
n
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