Patent ID: 8416297

Claim:
A method of detecting smoke or flame using video analysis, the method comprising: acquiring video data comprised of individual frames; detecting a boundary of region within an individual frame identified as potentially containing smoke or flame; measuring spatial values associated with the identified region based on the detected boundary of the region, including measuring a perimeter of the identified region and an area of the identified region; and determining whether smoke or flame is present in the identified region based, at least in part, on the measured spatial values associated with the identified region, including relating the perimeter of the identified region and the area of the identified region by the following equation: P=c(A 1/2 ) q , wherein P is the perimeter of the identified region, A is the area of the identified region, c is a constant, and q is a turbulence value associated with the identified region, wherein determining whether smoke or flame is present in the identified region is based on the calculated turbulence value.