Fire Detection Algorithms Using Multimodal ... - Bilkent University

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CHAPTER 3. FLAME DETECTION IN INFRA-RED (IR) VIDEO 41ratio of the wavelet domain energy to the energy of the low-band signal is a goodindicator of a fire region. This ratio is defined as∑ρ = ∑ l |w[l]|l |c[l]| (3.3)The likelihood of the moving region to be a fire region is highly correlated with theparameter ρ. Higher the value of ρ, higher the probability of the region belongingto flame regions.15(a) <strong>Fire</strong> Contour Wavelet Coefs.10|w|50805 10 15 20 25 30index n(b) <strong>Fire</strong> Contour Low−band Coefs.60|c|402005 10 15 20 25 30index nFigure 3.4: The absolute values of a) high-band (wavelet) and b) low-band coefficientsfor the fire region.A threshold ρ T for ρ was experimentally estimated off-line. During real-timeanalysis, regions for which ρ > ρ T are first determined. Such regions are possiblefire regions. In order not to miss any fire region, a low threshold value for ρ Tis selected. Therefore, temporal flicker analysis should be carried out in these
CHAPTER 3. FLAME DETECTION IN INFRA-RED (IR) VIDEO 4215(a) Man Contour Wavelet Coefs.10|w|50805 10 15 20 25 30index n(b) Man Contour Low−band Coefs.60|c|402005 10 15 20 25 30index nFigure 3.5: The absolute a) high-band (wavelet) and b) low-band coefficients forthe walking man.
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I certify that I have read this the
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viiiçin de işaret işleme yöntem
Page 9: ixThis work was supported in part b
Page 14 and 15: LIST OF FIGURESxiv2.6 Three-state M
Page 16 and 17: LIST OF FIGURESxvi4.4 Two moving ob
Page 18 and 19: List of Tables1.1 Organization of t
Page 20 and 21: Chapter 1IntroductionDynamic textur
Page 22: CHAPTER 1. INTRODUCTION 3No fire de
Page 27 and 28: Chapter 2Flame Detection in Visible
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Page 75 and 76: CHAPTER 4. SHORT RANGE SMOKE DETECT
Page 87 and 88: Chapter 5Flame Detection Using PIRS
Page 89 and 90: CHAPTER 5. FLAME DETECTION USING PI
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Chapter 7Conclusion and Future Work
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CHAPTER 7. CONCLUSION AND FUTURE WO
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Bibliography[1] B. Albers and A. Ag
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BIBLIOGRAPHY 112[18] D. Chetverikov
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BIBLIOGRAPHY 114[38] G. Healey, D.
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BIBLIOGRAPHY 116[56] U. Niesen, D.
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BIBLIOGRAPHY 118[77] C. Stauffer an
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