New approach to thermal drift correction in microbolometer thermal cameras

The authors propose a novel approach to non-uniformity correction (NUC) of microbolometer focal plane arrays in uncooled thermal cameras. This approach achieves thermal drift correction without interrupting the thermal observation. For this purpose a semi-transparent shutter is used instead of an opaque one. The authors provide a detailed description of the proposed thermal drift correction approach and present the latest advances on the proposed NUC approach.