Fire Detection Algorithms Using Multimodal ... - Bilkent University
Fire Detection Algorithms Using Multimodal ... - Bilkent University
Fire Detection Algorithms Using Multimodal ... - Bilkent University
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CHAPTER 3. FLAME DETECTION IN INFRA-RED (IR) VIDEO 4080a) Man Contour60distance (px)402000 π /2 π3 π /2 2πAngle − θ (rad)80b) <strong>Fire</strong> Contour60distance (px)402000 π /2 π3 π /2 2πAngle − θ (rad)Figure 3.2: Equally spaced 64 contour points of the a) walking man, and b) thefire regions shown in Fig. 3.1.Figure 3.3: Single-stage wavelet filter bank. The high-pass and the low-pass filtercoefficients are {− 1, 1, − 1} and { 1, 1, 1 }, respectively.4 2 4 4 2 4
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