Research on Automation Trigger Method for High Speed Photographic Device Based on Image

Traditional manual-trigger control method of high speed camera was used to shoot flight process of cluster round to evaluate its destroy efficiency.This method suffered from the influence of the staff,weather and environment,and it could not realize unmanned mode.Aimed at this situation,a kind of auto-trigger method was put forward.The method made use of judging the status of cluster round and smokes to carry out high speed camera auto-trigger.The method also made use of adaptive mixture Gaussian model to update background image.Thus the background subtraction method and OTSU adaptive thresholding segmentation algorithm were used to realize target segmentation in background image,and the statistic task after target area segmentation was performed.Combined with straight line fitting statistic results in continuous frames,the system trigger condition was given.The results of experiment proved that this method can meet the requirements of real time capability and reliability in firing range tests.