METHOD FOR VIDEO SURVEILLANCE OF OPEN SPACE WITH FIRE HAZARD MONITORING Russian patent published in 2014 - IPC G08B13/196 

FIELD: physics, video.

SUBSTANCE: invention relates to video surveillance, primarily of open spaces, with fire hazard monitoring and can be used to monitor forest areas in regions with underdeveloped infrastructure. The method comprises video monitoring of a protected area; selecting mobile regions on the obtained image; comparing said regions with reference images from a library of images and making a decision on burning based on the similarity of the obtained images and the available images; wherein mobile objects are selected on the image by breaking down the whole image into rectangular blocks; the shifting of blocks over time is diagnosed from the shift of the centre of a block; separate mobile blocks are merged by spatial clusterisation; time clusterisation of mobile objects is carried out based on a criterion of the intersection of trajectories of separate blocks with each other, wherein the shape of a mobile object is reconstructed by cutting off short edges, joining adjacent boundary points and smoothing the obtained boundaries, wherein the internal region of the object is reconstructed on the obtained boundary, and clusterisation of the selected mobile object is carried out on the normal component of optical flux.

EFFECT: high probability of recognising signs of fire on an open area owing to early detection of fire from smoke traces and air currents.

3 cl, 1 dwg