Method and relevant device for revealing objects
AssigneeIntelligence Devices S.r.l.
InventorEnrico Pieragostini
Life of this patent
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Abstract
The invention concerns a method and device, for remote sensing of objects that emit variable thermal emissions having phases, which may include: A. acquisition of a map of the radiation coming from the surface of the portion of space within or behind the object to be sensed at least at a first time t1 and a second time t2, such times being successive to each other; B. acquisition of a map of the radiation coming from the surface of said portion of space at a third instant t*; C. summation of the maps of at least two times t1 and t2; D. subtraction of the map at time t* from the sum from the sum of phase C as well as other phases.
Claims29
Method for remote sensing objects, characterised in that said objects are in a condition of thermal emission that is variable during time, and in that it comprises the following phases:
- A. acquisition of a map of the radiation coming from the surface of the portion of space within or behind which the object to be sensed is supposed to be, at least at a first time t1 and a second time t2, such times being successive to each other;
- B. acquisition of a map of the radiation coming from the surface of said portion of space, considered at a third instant t* different from said at least two times t1 and t2;
- C. summation of the maps of said at least two times t1 and t2 as obtained from the phase A;
- D. subtraction of the map at said time t* as resulting from the phase B, from the sum as resulting from the phase C;
- E. comparison between the values of each portion of map area as resulting from the phase D and a threshold value of the radiation intensity for the material of the sought objects;
- F. identification of the material of the object under investigation with the sought material, when the result of the comparison of the phase E has provided the presence of at least a certain number n of area portions of said space portion, with n≧1, whose value for said radiation is larger than said threshold value.
Dependencies are inferred from the claim text.