METHOD AND SYSTEM FOR DETECTING FLAME
First Claim
Patent Images
1. A method for detecting a flame, comprising steps of:
- (a) capturing a plurality of images;
(b) determining whether a bright object exists in the plurality of images, wherein the step (b) comprises sub-steps ofclassifying at least a specific pixel having components of Y, U and V as a bright pixel if the components of Y, U and V respectively meet predefined intervals; and
grouping and labeling the bright pixel(s) to form a bright object;
(c) analyzing whether the bright object is in a spatially flickering state, wherein the spatially flickering state comprises a state being one selected from a group consisting of;
the bright object having an upper edge in a flickering state;
the bright object simultaneously having an upper edge in the flickering state and a lower edge in a non-flickering state; and
the bright object having an upper edge and a lower edge both in a flickering state, and the upper edge having a moving direction different from that of the lower edge; and
(d) determining the bright object as the flame if the bright object is in the spatially flickering state.
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Abstract
A method and system for detecting flames are provided. The flame detection method based on image processing techniques performs the following steps to detecting flames. It first finds one or more bright objects in the images that are captured from videos. A flickering state of a bright object is then determined. To verify the existence of a flame, additionally subsequent images from the instant that a bright object first appears are utilized and the similar steps are applied to them. Finally a flame could be detected if the analyzed results are positive after the aforementioned steps have been performed.
3 Citations
10 Claims
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1. A method for detecting a flame, comprising steps of:
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(a) capturing a plurality of images; (b) determining whether a bright object exists in the plurality of images, wherein the step (b) comprises sub-steps of classifying at least a specific pixel having components of Y, U and V as a bright pixel if the components of Y, U and V respectively meet predefined intervals; and grouping and labeling the bright pixel(s) to form a bright object; (c) analyzing whether the bright object is in a spatially flickering state, wherein the spatially flickering state comprises a state being one selected from a group consisting of; the bright object having an upper edge in a flickering state; the bright object simultaneously having an upper edge in the flickering state and a lower edge in a non-flickering state; and the bright object having an upper edge and a lower edge both in a flickering state, and the upper edge having a moving direction different from that of the lower edge; and (d) determining the bright object as the flame if the bright object is in the spatially flickering state. - View Dependent Claims (2, 3, 4, 5)
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6. A system for detecting a flame, comprising:
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an image capturing device capturing a plurality of images; an analyzing device coupled to the image capturing device, and analyzing whether a bright object exists in the plurality of images and whether the bright object is in a spatially flickering state; and a determining device coupled to the analyzing device, and determining the bright object as the flame if the bright object is in the spatially flickering state. - View Dependent Claims (7, 8, 9, 10)
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Specification