Abstract
About 60, 000 fires have occurred every year in Japan. To be most important to the fires is an early period fire fighting. At present, the automatic devices of detectiong fires is needed. The alarms which can detect smoke and heat are utilized to house fires. However, such the alarms is not useful for the outside of house such as the incendiary or woodland fire. Therefore, in this paper, we propose the method that detecting the fire in the wide area by using camera images This method is able to detect such a flame that becomes a fire is the early period. First, the region of the flame in the images obtained from the observation camera is detected. Next, the characteristic quantity that expresses the flame is extracted. This characteristic is not influenced to the light such as the flashlight and street lamp. In other words, the only flame can be detected, from the range which looks like the flame in the image.
