CCD
Based Video System for Real Time Activity Monitoring
This research was part of a collaboration with
SafeGames, Inc., Las Vegas, US (www.sglv.com).
It was aimed at the development of an
integrated monitoring system that is able to capture an image in response to
the signal triggered by a sensor and to deliver an information extracted from
that image to an attached personal computer.
The system is a mixed analog-digital design.
The
analog part has to ensure the proper processing of the image signal delivered
by a CCD sensor with emphasis on image stability, electrical offsets
elimination and noise reduction.
The logic part has to perform
several functions:
· coordinating the sequence of
actions, from image acquisition to information delivery to the attached PC;
· managing the communication protocol
between the system and the PC;
· maintaining the CCD sensor in the
ready state during non active periods (in particular, taking care of the dark
noise reduction) as the video acquisition is not continual but is triggered by
a hardware signal.
The system makes use of a
microcontroller for realizing the above functions, while the low level and high
speed functions related to CCD driving signals and communication protocol are
provided by programmable logic of CPLD type.
Dr. Vuza's work on this topic is
testified by the document Certificate of
Achievement issued by SafeGames, Inc.