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Real-Time Video Capture Card for Standard Cameras
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Picolo Tetra is a cost-effective PCI capture card dedicated to demanding multiple cameras video surveillance applications.
Picolo Tetra has a superior ability to manage streaming and switching. Thanks to its four color video digitizers,
Picolo Tetra acquires four real-time image sequences in parallel. With the three video expansion brackets, this Picolo
also manages efficiently quick switching from up to sixteen cameras.
TTL I/O lines are provided for system integration.
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Streaming with Four Simultaneous Video Digitizers
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Picolo Tetra is able to simultaneously digitize four video signals and to send the resulting digital data in real time
into the PC memory through the PCI bus. The video streams issued from four cameras are displayed and/or recorded
in parallel.
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Quick Switching
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Adding three Video Expansion Brackets, Picolo Tetra provides
the four digitizers with sixteen inputs. This maximum
configuration leads to a 16-camera system. The four
digitizers of the Picolo Tetra card are switched
between these inputs at a very high frame rate.
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| NTSC configuration |
4 camera |
8 cameras |
12 cameras |
16 cameras |
| Fields / Frames per second (per camera) |
60 / 30 |
8.6 / 6.7 |
6 / 4.6 |
4.6 / 3.5 |
| Fields / Frames per second (all cameras) |
240 / 120 |
69 / 54 |
72 / 55 |
74 / 56 |
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| PAL configuration |
4 camera |
8 cameras |
12 cameras |
16 cameras |
| Fields / Frames per second (per camera) |
50 / 25 |
7.1 / 5.6 |
5 / 3.8 |
3.8 / 2.9 |
| Fields / Frames per second (all cameras) |
200 / 100 |
57 / 45 |
60 / 46 |
61 / 47 |
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Expandable Architecture
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VEB™ -Video Expansion Bracket- compatibility
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Up to three VEB can be connected on the Picolo Tetra to increase the number of video inputs connected to the card.
Four buffered video outputs are offered on an additional four-BNC module as an alternative to loop-through connecting
the video sources. These video signals represent the image applied to each internal video color digitizer.
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64-bit, 66 MHz PCI Bus
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The Picolo Tetra bus capability is 64 bits at 66 MHz. This PCI bus supports a peak data transfer rate of 528 Mbytes/s.
Picolo Tetra is compatible with conventional PCI architectures, including 32 bits and 33 MHz. Signaling voltage
compliance is 3.3 V and 5 V for maximum versatility.
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Maximizing Performance
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With a top performance 64-bit 66 MHz PCI bus, Picolo Tetra is able to simultaneously acquire full size video images
in real time. System consideration may lead to functional trade-off. In order to reach the targeted performance, the user
will consider downsizing images (SIF or CIF), operating in parallel with less than four digitizers or tailoring the bitmap
image format. In particular, YCrCb 4:2:2 and RGB16 formats are highly recommended.
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On-board TTL I/O Lines and a Configurable Hardware Watchdog
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TTL I/O lines are provided for easy system integration. An internal 16-pin header connector provides 13 general
purpose input / output TTL lines usable for triggering image capture and interfacing to alarm system. This connector
is pin to pin compatible with the Picolo Pro 2 solution. A hardware watchdog is available on Picolo Tetra. Its purpose
is to monitor the software application and to restart the PC after an anomalous inactivity time-out. This ensures a
reliable operation of unattended systems.
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Video Image Formats
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Picolo Tetra supports the acquisition of full resolution images or any smaller-size format, such as CIF. Acquisition
of full frame (two fields) or single field images is selectable. Individual fields or frames as well as video sequences are
captured directly to the PC memory. Picolo Tetra ensures an excellent fidelity of the grabbed bitmap in respect of the
original video signal.
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Piano-switch
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Picolo Tetra and the Video Extension Brackets are equipped with a piano-switch to conveniently enable or disable the 75
ohms termination resistors from outside the PC.
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