AIRBORNE IMAGE SENSOR TAKING MATRIX PICTURES BY TEMPORAL SHIFTING AND MULTI-SPECTRAL SUMMATION

摘要

Disclosed is an image sensor able to be embedded on board a carrier travelling above a scene to be observed, said sensor comprising at least one image detection matrix based on temporal shifting for summation comprising a plurality of photosensitive pixels aligned along the direction of travel of said carrier; and a circuit for processing the signals, having an input linked to a data output of said image detection matrix, said circuit being configured to provide at its output, for each instant of acquisition of said sensor, an image data matrix obtained by summation of image data generated by the rows of pixels; the sensor being characterized in that a multi-spectral filter is placed in front of said detection matrix, said filter comprising several filtering elements, arranged in rows and columns, characterized by respective spectral transmission bands, and each column of said detection matrix comprising at least one filtering element of each type of filtering element present on the whole of said filter.