Study on the method of flame image segmentation in fire detection

Abstract：Base on analyzing image segmentation methods now available, a method of flame image segmentation is put forward to solve gray-level histogram shape limit and unsteady segmentation effect of the Otsu method.It uses the Otsu method combined with the HSI color-space parameters.First, a color space model of flame image is built based on HSI color space parameter to preprocess the flame image by using Saturation (S-parameters) , hue (H parameters) of image features, then segment the flame image according to the threshold value with the Otsu.At last, a clear profile of segmented image can be obtained by simulation.The results show that this method can make up some shortcomings of the Otsu and widened its application range.

Keyword：image segmentation;HSI;Otsu method;