摘要： 射流轨迹识别通过图像处理方法识别消防炮射流的运行轨迹,是智能消防炮系统的重要环节。在使用过程中消防炮射流分叉、高亮度背景和背景晃动会对射流轨迹识别产生重大影响。为解决射流轨迹识别效率低的问题,提出一种新的射流轨迹识别方法。给出多轨迹矢量搜索法的搜索模式,设置多轨迹搜索起点和搜索方向,根据多轨迹矢量搜索原理,设定轨迹点搜索成功及搜索结束的条件,提出射流落水点位置的识别、抗干扰处理及后续处理步骤。实验结果表明,该方法在高亮度背景和图像背景晃动干扰的情况下,可实现对消防炮射流轨迹的高效识别与定位,结果优于背景减除法和单向搜索法。
关键词:
多轨迹矢量搜索法,
射流轨迹识别,
背景减除,
轨迹筛选
Abstract: The jet trajectory recognition is the identification of fire-fighting jet running track by image processing method.It is a key link of intelligent fire monitor system.But the fire-fighting monitor jet will grow bigger and branch,the jet trajectory recognition will be influenced by high lighting background and shaking background in use.To solve these problems,a new method based on the Multi-trajectory Vector Search Method(MTVSM)is proposed,together with the search mode of the MTVSM,the set method of search start and search direction,the Multi-trajectory Vector Search principle,the condition of the successful trajectory point search and the condition set for the end of search.The identification method of the trajectory ending,anti-interference processing and the following image processing methods are given.Experimental results show that the fire-fighting jet trajectory is an efficient identification under high lighting background and
shaking background.It is less affected on the trajectory recognition when background changes.The result is better than background subtraction and the one-way search method.
Key words:
Multi-trajectory Vector Search Method(MTVSM),
jet trajectory recognition,
background subtraction,
trajectory screening
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