The invention discloses a forest fire
fire point detection method based on an MODIS. Firstly,
time sequence data is established for
multiple days of MOD02 and MOD03 data from the MODIS,
time sequence daily value data of
multiple days of NDVI and
brightness temperature is obtained, break points in the
time sequence daily value data of the NDVI and
brightness temperature are recognized through a time sequence
break point recognition algorithm, and the recognized break points serve as potential fire points; relative fire points are distinguished from the potential fire points through a space context
analysis method; real fire points are extracted from autonomous modular sensor data, the relative fire points are compared with the real fire points, and the
correctness and
leakage rate of the relative fire points are verified. The potential fire points are distinguished through the method that the time sequence data break points are detected through the BFAST
algorithm without determining the potential fire points through fixed threshold values, therefore the
algorithm has higher adaptability and flexibility for
fire point distinguishing, the defects that the regional difference cannot be met by distinguishing the potential fire points through the fixed threshold values is overcome, and the
fire point correctly discriminating rate is increased.