Method and system for wildfire detection using a visible range camera

摘要

Wildfires are detected by controlling image scanning within the viewing range of a video camera to generate digital images that are analyzed to detect gray colored regions, and then to determine whether a detected gray colored region is smooth. Further analysis to determine movement in a gray colored smooth region uses a past image which is within a slow moving time range, as determined by a strategy for controlling the image scanning. Additional analysis connects a candidate region to a land portion of the image, and a support vector machine is applied to a covariance matrix of the candidate region to determine whether the region shows smoke from a wildfire.

主权项

1. A computer implemented method for wildfire detection using a visible range video camera, the computer performing steps comprising:
generating sequential video images of a subject area; detecting gray colored regions in one of the video images; determining if a gray colored region is smooth; determining if a gray colored smooth region is slow moving by a frame difference comparison between a video image containing the gray colored smooth region and a past video image that is within a slow moving time range of the video image; determining if a slow moving gray colored smooth region is connected to a land portion of the subject area; constructing a covariance matrix of a land connected slow moving gray colored smooth region; and applying a trained support vector machine to the covariance matrix to determine if the land connected slow moving gray colored smooth region is smoke from a wildfire.