DCSG
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SER
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M
ANUAL
©
2007
V
IDERE
D
ESIGN
3
1 Introduction
The DCSG is a compact, low-power digital camera with an IEEE 1394
digital interface. It consists of a 640x480l, progressive scan CMOS imager
and associated IEEE 1394 electronics, mounted in a rigid, milled aluminum
alloy frame.
The CMOS imagers are MT9V032 sensors from Micron Semiconductor..
They are 1/3” format, with a resolution of 640 H by 480 V pixels, and come
in either monochrome (DCSG) or colorized (DCSG-C) versions. They
feature a
global shutter
, which means that all pixels are exposed at the
same instant. These imagers have excellent dynamic range, sensitivity,
anti-blooming, and noise characteristics. They are fully controllable via the
1394 interface: the user can set exposure, gain, decimation, etc. They have
better noise, sensitivity, and crosstalk characteristics than the previous
sensors.
The DCSG/C uses standard C/CS-mount lenses for user-changeable optics.
Wide-angle to telephoto options are available, depending on the
application.
There are software drivers for the DCSG for MS Windows 2000/XP, and
for Linux 2.4 and 2.6 kernels. These drivers are included in a Software
Developer’s Kit, which is bundled with the devices. Using the libraries in
the kit, you can quickly integrate DCSG video acquisition into your own
applications, written in C or C++.
1.1 Characteristics
•
Micron MT9V032 Sensor
640 x 480 maximum image size
High sensitivity, low noise
Low pixel cross-talk
Global shutter
•
Fully synchronized – video stream is synchronized to the
IEEE 1394 bus clock. Any other DCSG on the bus will
capture images at exactly the same time.
•
Monochrome or Bayer Color
•
High frame rates – 60 Hz for 640x480
•
Electronic zoom mode – center 640x480 subwindow
•
Extensive control of video parameters
Automatic or manual control of exposure and gain
Automatic control of black level
Manual control of color balance
•
50 Hz mode – reduces indoor light interference in
countries with 50 Hz electrical line frequency
•
IEEE 1394 interface to standard PC hardware – carries
power and commands to device, data to PC
•
Standard C/CS mount lenses, interchangeable – focal
lengths from 3.5 mm to 50 mm
•
Anodized aluminum alloy chassis, high rigidity
