摘要 |
#CMT# #/CMT# The method involves producing an updated background frame from a newly received background frame and a background frame to be updated. Data of each pixel of the newly received background frame is multiplied with a factor and added to other data of each pixel of the background frame to be updated, the latter data is multiplied with another factor. The former factor is a value between zero and one. The latter factor is a difference between the one and the former factor. The data of each pixel of the updated background frame is provided as an accumulated, weighted average value. #CMT# : #/CMT# An independent claim is also included for a thermal image camera comprising a closing device. #CMT#USE : #/CMT# Method for correcting non-uniform sensitivity of detector elements i.e. microbolometer-focal plane arrays, which is used in a thermal image camera for pixelwise detection of heat radiations. #CMT#ADVANTAGE : #/CMT# The method corrects the non-uniform sensitivity of the detector elements with reduced computational expenditure and reduced influence of individual data variations, and avoids the need to use all background frames of respective closure phases. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a flow diagram of a method for correcting non-uniform sensitivity of detector elements of thermal image cameras.'(Drawing includes non-English language text)'. |