Matrox Matrox Radient eV-CXP, Installation And Hardware Reference, Page: 46 / 70

46 Appendix A: Glossary
• Dynamic range.
The range of values present in a buffer. An unsigned 8-bit buffer, for example, has
an allowable range of 0 to 255; its dynamic range can be any range within these
values.
• Exposure signal.
The signal generated by one of the programmable timers of the frame grabber.
The exposure signal can be used to control external hardware. For example, it can
be fed to the video source to control its exposure time or can be used to fire a
strobe light.
• Exposure time.
Refers to the period during which the image sensor of a video source is exposed
to light. As the length of this period increases, so does the image brightness.
• Frame.
A single image grabbed from a video source.
• Grab.
To acquire an image from a video source.
• GPIO.
General purpose input and output. These signals represent control bits of a register
on the frame grabber, which can be shared and updated by both the frame grabber
and the video source. They are updated over the CoaXPress links via packet
transfers.
• Latency.
The time from when a command is sent to when its operation is started.