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A passive radiometric imaging device and a corresponding method for scanning a scene and reconstructing an image of said scene provide an improved image quality. The device comprises a radiometer for detecting radiation and a processing means for subsequently determining pixel values of pixels of the image to be reconstructed. A cost calculation unit calculates costs for the radiation samples of said data sub-set according to a predetermined cost function, said costs indicating the level of noise in the respective radiation sample. An optimization unit determines a pixel value as a label value from a set of label values, a label indicating a radiation sample or a group of radiation samples of the respective data sub-set, by determining an extremum of energy values determined for different radiation samples or different groups of radiation samples of the respective data sub-set by use of an energy function.
Current U.S. Class:
Current International Class:
G01J0010000000, G01T0010000000, G08B0131890000, H04N0053300000, G08B0131940000, G06T0050000000