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    • 4. 发明授权
    • System and method for video detection of smoke and flame
    • 烟雾和火焰的视频检测系统和方法
    • US08416297B2
    • 2013-04-09
    • US12448950
    • 2007-01-16
    • Alan Matthew FinnPei-Yuan PengZiyou Xiong
    • Alan Matthew FinnPei-Yuan PengZiyou Xiong
    • H04N7/18G06K9/00G08B23/00
    • G08B17/125G06K9/0063
    • A method for detecting flame and smoke using spatial analysis of video input (40) provided by a video detector. The video input (40) consists of a number of individual frames, wherein analysis is performed on each individual frame to detect and outline regions that may contain smoke or flame (42). Based on the defined outline or boundary of each detected region, spatial features associated with the region are extracted (52), such as perimeter/area and surface area/volume. The extracted spatial features are related to one another (54) to determine the likelihood that the region contains smoke or flame. Extracted spatial features may be related to one another using a power law relationship that provides an indication of the turbulence associated with a bounded region, wherein turbulence is a characteristic of both flame and smoke.
    • 一种使用视频检测器提供的视频输入(40)的空间分析来检测火焰和烟雾的方法。 视频输入(40)由多个单独的帧组成,其中对每个单独的帧执行分析以检测和轮廓可能包含烟雾或火焰的区域(42)。 基于每个检测区域的定义的轮廓或边界,提取与区域相关联的空间特征(52),例如周长/面积和表面积/体积。 所提取的空间特征彼此相关(54)以确定该区域包含烟雾或火焰的可能性。 提取的空间特征可以使用提供与有界区域相关联的湍流的指示的幂律关系彼此相关,其中湍流是火焰和烟雾的特征。