火焰相对面积估算方法的研究及实现

Research and implementation of flame relative area estimation method

为配合自动灭火装置的喷水定位,研究并实现了一种基于双目相机的火焰相对面积估算方法。通过YOLOv5s检测火焰并利用双目摄像头获得火焰区域的深度,根据火焰深度与火焰像素占比估算得到火焰相对面积。基于该方法得到的火焰深度误差小于10%,估算的火焰相对面积平均误差为12.2%。所提方法在准确提取图像中火焰区域的同时可以较为准确地估算火焰面积,能够为室内火灾实时检测及灭火技术的发展提供一定参考。

In order to cooperate with the sprinkler positioning of automatic fire extinguishing device,amethod for estimating the flame relative area based on binocular camera was studied and implemented.YOLOv5s was used to detect the flame and binocular camera was used to obtain the depth of the flame area.The relative area of the flame was estimated according to the proportion of the flame depth and the flame pixels.The error of the flame depth based on this method is less than 10%,and the average error of the estimated flame relative area is 12.2%.The proposed method can accurately extract the flame area in the image,and can estimate the flame area at the same time.It can provide a certain reference for the development of indoor fire real⁃time detection and fire extinguishing technology.