Controlled fires were burned and lot of video material collected.
Several algorithms were tested but in parallel we have worked on the whole system for automatic surveillance with automatic forest fire detection development. Finally, in the year of 2005. the prototype version was finished and implemented on two experimental sites on Marjan hill in Split and Vidova gora on island Brac. After two seasons of intensive testing the system is now in its final form. Few alarm images with fire and smoke detection collected during 2004, 2005 and 2006 are shown bellow.
For smoke detection during day and fire flame detection during night we use specially developed four different algorithms working in parallel.
Advanced image analysis and image underspending procedures are used, but also a powerful post-processing algorithms based on meteorological and video data fusion are applied. Detection algorithm has a certain number of interactive parameters so it could be easily tuned for different locations and various landscapes.
The system is interactive. After the suspicious behavior is detected the alarm window and audio signal is generated and the operator decide is it a real fire or not. Picture below shows the alarm window.
The operator has three possibilities:
- to reject the alarm
- to accept the alarm, or
- to click on the third button which deactivate the automatic mode and turn camera to the preset position where the suspicious behavior is detected.
Using powerfully zoom and user friendly camera cintrol the operator can easily understand what is going on.
At the end few real life detections are shown below (click on image).
Examples of smoke detection
Vrboska, island Hvar 2004.
Monitoring station Marjan Split 2005.
Monitoring station Marjan Split 2006.
Monitoring station Buzet, istra 2007.