Flame Detecting Method And Device

• US 20080136934A1
• Filed: 06/08/2007
• Published: 06/12/2008
• Est. Priority Date: 12/12/2006
• Status: Abandoned Application

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Lu, Chung-Hsien, Chen, Yi Chih, Chang, Shen-Kuen, Hsu, Yu-Ren, Zhao, Hao-Ting
• Application Number:
  US11/760,661
• Publication Number:
  US 20080136934A1
• Time in Patent Office: Days
• US Class Current: 348/226.1
• CPC Class Codes: G06T 2207/10016 Video; Image sequence
• CPC Class Codes: G06T 2207/20064 Wavelet transform [DWT]
• CPC Class Codes: G06T 2207/30232 Surveillance
• CPC Class Codes: G06T 7/262 using transform domain methods, e.g. Fourier domain methods
• CPC Class Codes: G06T 7/90 Determination of colour characteristics
• CPC Class Codes: G06V 20/52 Surveillance or monitoring of activities, e.g. for recognising suspicious objects recognising microscopic objects G06V20/69
• CPC Class Codes: G08B 17/125 by using a video camera to detect fire or smoke

Abstract

A flame detecting method is provided. The method comprises steps of capturing a video segment for a object; analyzing if an image of the object is moving; analyzing at least one of a color model and a flickering frequency of the moving object; comparing analyzed results obtained from the analyzing steps to a flame feature; and determining if the object is a flame.

Claims

1. A flame detecting method, comprising steps of:

capturing a video segment for a object;

analyzing if an image of the object is moving;

analyzing at least one of a color model and a flickering frequency of the moving object;

comparing analyzed results obtained from the analyzing steps to a flame feature; and

determining if the moving object is a flame.

2. A flame detecting method as claimed in claim 1, further comprising:

sending out an alarm when the moving object is determined as the flame.

3. A flame detecting device, comprising:

an image capturing device capturing a video segment having an image for a object;

a first analyzing device coupled to the image capturing device and analyzing if the object is moving;

a second analyzing device coupled to the image capturing device and analyzing at least one of a color model and a flickering frequency of the moving object; and

a comparing device coupled to the analyzing devices and comparing analyzed results obtained from the analyzing devices to a flame feature.

4. A flame detecting device according to claim 3 further comprising:

a storage device coupled to the comparing device and storing the flame feature.

5. A flame detecting device according to claim 4, wherein the storage device further stores the analyzed results when the moving object is the flame for updating the flame feature.

6. A flame detecting device according to claim 3 further comprising:

an alarming device coupled to the comparing device for generating an alarm when the moving object is the flame.

7. A flame detecting device according to claim 3, wherein the image capturing device is one of a web camera and a cable camera.

8. A flame detecting device according to claim 3, wherein the color model is a Gaussian mixture model resulting from a statistics for a color of the moving object.

9. A flame detecting device, comprising:

an image capturing device capturing an image of a object; and

a first analyzing device coupled to the image capturing device for analyzing at least one of a flickering frequency and a color model of the image for determining if the substrate is a flame.

10. A flame detecting device according to claim 9 further comprising:

a second analyzing device coupled to the image capturing device and analyzing if the object is moving; and

a comparing device coupled to the analyzing devices and comparing analyzed results obtained from the analyzing devices to the flame feature.

11. A flame detecting device according to claim 10 further comprising:

a storage device coupled to the comparing device and storing the flame feature.

12. A flame detecting device according to claim 11, wherein the storage device further stores the analyzed results when the object is the flame for updating the flame feature.

13. A flame detecting device according to claim 9 further comprising an alarming device coupled to the flame detecting device for generating an alarm when the object is the flame.

14. A flame detecting device according to claim 9, wherein the image capturing device is one of a web camera and a cable camera.

15. A flame detecting device according to claim 9, wherein the flickering frequency is a color variation of the image varying with time.

16. A flame detecting device according to claim 9, wherein the color model is a Gaussian mixture model resulting from a statistics for a color of the object.