Model 817 combines the functions of a frame grabber, hardware JPEG
encoder, and 16 X 4 video crosspoint switch, into a PCI-express (x1)
card. It is capable of capturing full resolution color JPEG-compressed
images and / or monochrome uncompressed bitmaps, from 16 channels at
full NTSC or PAL frame rates.
video capture and processing units (VCPU) work together to compress
JPEG images at 30fps on all 16 channels simultaneously for a total
board throughput of 480 fps for 640 X 480 interlaced frames.
Model 817 executes hardware JPEG compression to reduce the amount of
disk space required to store images. Hardware compression greatly
reduces the load on the CPU.
Sensoray's driver supports multiple 817's in the same computer.
A 16x4 analog crosspoint video switch is used to route any combination
of four input channels to external video monitors. Each of the four
video outputs can be individually turned on or off, which allows
connecting the outputs of multiple 817’s to the same monitor.
An optional single line text caption (up to 80 characters) can be
overlaid on the captured images (before compression).
Model 817 performs optional deinterlacing of interlaced video to reduce motion
artifacts on captured images. The lines of one of the fields of video are recreated
from those of another field by using interpolation. This method provides better
visual quality compared to simple line doubling. Since the deinterlacing is
performed by the firmware running on the DSPs, it slows the capture rate down
Model 817TA Distribution Amplifier
is an indispensable tool for application development and
troubleshooting with Sensoray’s 16-channel frame grabbers (models 615,
617 and 817). Model 817TA takes one standard composite TV video signal
(BNC connector) and splits it into 16 buffered outputs of standard
amplitude and impedance. The outputs are connected to a 34-pin ribbon
cable connector standard for above mentioned frame grabbers. A
combination of models 817TA and 609TC, TE or TG yields a splitter with
16 BNC outputs.
A termination box is recommended for interfacing the video signal to the Model 817.
Sensoray offers the following termination boxes. A flat cable, Model 609C1 (video in) is needed.
provides sixteen BNC’s for inputs and eight BNC’s for video output.
Also requires cable 609C2 (video out) and 7409C1 (digital I/O) .
Model 609TC provides 16 BNC's for camera connections and is 2U height.
Model 609TE provides 16 BNC’s for camera connections and fits in the space of a CD player.
Model 609TG supports 32 camera connections and is 2U height for 19” enclosure.