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Description
Model 617-4 combines the
functions of a frame grabber, hardware JPEG compression and digital
I/O into one PCI board.
The 617-4 accepts four composite video inputs and
routes to separate video decoders for digitizing.
The use of four
decoders eliminates losing frames during channel switching.
Frame rates
As long as there is just one
JPEG compression engine on the 617-4
The capture rate is 30 fps at
640x480 resolution (25 for PAL) or 7.5 fps per channel, if all
channels are used.
At 320x240 resolution, the capture rate is 120
fps (100 for PAL) or 30 fps per channel.
Hardware compression
Model 617-4
executes hardware JPEG compression to greatly reduce the amount of
memory needed to store images.
Hardware compression reduces the CPU
and PCI bus loading.
Multiple boards
Sensoray’s software
supports multiple 617-4’s in the same PCI bus.
For example, two
617-4’s may be used to expand the number of video inputs to eight.
Real-time outputs
Four video inputs are
routed to four output channels for display on video monitors.
A
software-selectable switch after each buffer amplifier allows
multiple 617-4’s to share the same video monitor.
Text overlay
The 617-4’s caption buffer
allows overlaying text on each frame.
The text is within a
transparent box that may be positioned in one of 4 possible
locations of the frame. The text size and color are
programmable.
Special output
The 617-4 also supplies
small-size uncompressed frames suitable for motion detection by the
host computer.
These are 128 x 96 pixels or 256 x 192.
Software and Manuals
The 617-4 is
supplied with a software developer’s kit, SDK17. It includes drivers
for Windows 98/NT/2000/XP.
A Linux driver for kernel 2.4.10 is
available. Each kit includes sample application programs.
617-4 Hardware
Manual >> Released 7/3/03
617-4
Software Manual >> Released 7/3/03
617-4 SDK
Version 2.2 >> Released 10/29/03 |
