Proceedings Article | 25 March 2008
Proc. SPIE. 6978, Visual Information Processing XVII
KEYWORDS: Digital signal processing, Clocks, Imaging systems, Cameras, Image processing, Field programmable gate arrays, Light sources and illumination, Signal detection, Binary data, Information security
In this paper, there is an investigation into the possibility of executing a Morphological Scene Change Detection
(MSCD) system on a Field Programmable Gate Array (FPGA), which would allow its set up in virtually any
location, with its purpose to detect intruders and raise an alarm to call security personal, and a signal to initial
a lockdown of the local area. This paper will include how the system was scaled down from the full building
multi-computer system, to an FPGA without losing any functionality using Altera's DSP Builder development
tool. Also included is the analysis of the different situations which the system would encounter in the field,
and their respective alarm triggering levels, these include indoors, outdoors, close-up, distance, high-brightness,
low-light, bad weather, etc. The triggering mechanism is a pixel counter and threshold system, and its adaptive
design will be included. All the results shown in this paper, will also be verified by MATLAB m-files running on
a full desktop PC, to show that the results obtained from the FPGA based system are accurate.
