Patent Document ID: 20120195462
Application ID: 13229153
Patent Status: 0

Claim One:
1. A flame identification method of identifying any flame image in a plurality of image frames captured consecutively from a monitored area, each of image frames including a plurality of pixels each having pixel data converted into a hue value, a saturation value and an intensity value in hue-saturation-intensity (HSI) color space, said flame identification method comprising the steps of: a) for each of the image frames, filtering the pixels based on the intensity values corresponding to the pixels, and intensity reference information to divide the pixels into intensity foreground pixels associated with fire-like intensity performance and intensity background pixels so as to obtain an intensity foreground area corresponding to the intensity foreground pixels, and so as to define within a corresponding one of the image frames a fire-like image region that contains the intensity foreground pixels when the intensity foreground area is greater than a predetermined intensity foreground area threshold, filtering all pixels in the fire-like image region based on the saturation values corresponding to all the pixels in the fire-like image region, and saturation reference information to divide all the pixels in the fire-like image region into first saturation foreground pixels associated with weak-fire saturation performance and saturation background pixels so as to obtain a first saturation foreground area corresponding to the first saturation foreground pixels, and combining the intensity foreground area and the first saturation foreground area associated with the corresponding one of image frames to form a first two-dimensional (2-D) coordinate; b) when a number (N) of the first 2-D coordinates corresponding to a sequence of the image frames are formed consecutively in step a), performing linear regression analyses on the first 2-D coordinates to generate a first determination coefficient; and c) determining whether a flame image exists in the image frames based on the first determination coefficients generated in step b) and a predetermined identification threshold.