B. Frame Grabber Cards
directly supports four frame grabber cards for acquiring images from video sources,
such as TV cameras and VCR's: the Data Translation QuickCapture, the Scion LG-3,
Scion AG-5, and the Scion VG-5. All allow brightness, contrast and pseudocolor to
be adjusted during "live" capture. All allow continuous histogram display and "live" paste,
which can be useful for image alignment.
The fastest screen refresh rate (about eight frames per second) is achieved on 68040
and Power PC Macs using built-in video. A 16 inch, or larger, monitor is required
to see the entire 640x480 frame without panning. Image
supports the 768 x 512 resolution available with 50Hz (PAL/CCIR) versions of the cards.
It also supports external triggering.
All of the Scion cards support software control of analog gain and offset and on-chip
integration. The LG-3 features a frame buffer that can be expanded to 64MB using
standard Mac SIMMS. The AG-5 supports video rate averaging and integration. The VG 5
is a short NuBus card that will fit in the Quadra 610 and PowerMac 6100.
Data Translation QuickCapture
Part Number: DT2255
Requires EP205 Cable Assembly: $125
Data Translation, Inc.
100 Locke Drive
Marlboro, MA 01752
Scion Frame Grabber Cards
Optional cables are required for color capture and on-chip integration
152 West Patrick Street
Frederick, Maryland 21701