Forest and Grassland Fire Detection Algorithm Based on Dynamic Threshold

Focusing on the problem of missing and false fire detection caused by environmental changes when using traditional forest and grassland fixed threshold fire detection algorithm,we propose a space-time dynamic threshold fire detection algorithm considering the spatial and temporal factors,such as season,location and type of land cover.Based on the HJ-1A/B data of the native environment and disaster monitoring and forecasting of small satellite constellation,we selecte the fire case in Heilongjiang Province.Experimental results show that the space-time dynamic threshold fire detection algorithm with the space-time adaptive feature can improve the results of fire detection.