Method for capturing a thermal pattern by a sensor comprising a plurality of pixels each comprising at least one heat-sensitive measuring element , the sensor further comprising: - at least one heating element configured to heat the heat-sensitive measuring element of at least one pixel during a measurement by the heat-sensitive measuring element of said at least one pixel ; - at least one reading circuit configured to read the electrical charges outputted by said at least one pixel during a measurement by the heat-sensitive measuring element of said at least one pixel ; the method comprising, for each pixel , the implementation of at least the following steps: - heating the heat-sensitive measuring element of the pixel during a heating duration starting at a time t 0 and ending at a time t 2 later than the time t 0 ; - first reading of the electrical charges outputted by the pixel during a first measurement duration starting at a time t 1 and ending at a time t 3 later than the time t 1 , and giving a first measurement value x 1 corresponding to the electrical charges read during the first measurement duration t 3 - t 1 ; - second reading of the electrical charges outputted by the pixel during a second measurement duration starting at a time t 4 , later than the time t 3 , and ending at a time t 5 later than the time t 4 , and giving a second measurement value x 2 corresponding to the electrical charges read during the second measurement duration t 5 - t 4 ; - calculating a difference x 1 - α.x 2 , with a corresponding to a positive real number, wherein more than half of the heating duration is implemented during the first measurement duration and less than half of the heating duration is implemented during the second measurement duration, and wherein the time t 2 occurs before the time t 5 such that the second reading of electrical charges outputted by the pixel is implemented at least partly during a cooling of the read pixel . - at least one heating element configured to heat the heat-sensitive measuring element of at least one pixel during a measurement by the heat-sensitive measuring element of said at least one pixel ; - at least one reading circuit configured to read the electrical charges outputted by said at least one pixel during a measurement by the heat-sensitive measuring element of said at least one pixel ; - heating the heat-sensitive measuring element of the pixel during a heating duration starting at a time t 0 and ending at a time t 2 later than the time t 0 ; - first reading of the electrical charges outputted by the pixel during a first measurement duration starting at a time t 1 and ending at a time t 3 later than the time t 1 , and giving a first measurement value x 1 corresponding to the electrical charges read during the first measurement duration t 3 - t 1 ; - second reading of the electrical charges outputted by the pixel during a second measurement duration starting at a time t 4 , later than the time t 3 , and ending at a time t 5 later than the time t 4 , and giving a second measurement value x 2 corresponding to the electrical charges read during the second measurement duration t 5 - t 4 ; - calculating a difference x 1 - α.x 2 , with a corresponding to a positive real number, <EOS>