Method for acquisition of images by a space or airborne optical instrument with wide field of view

摘要

A method for the acquisition of images by a spacer airborne optical instrument, comprises the following steps: a) acquisition, by the instrument, of a first image having a first field of view including the projection on the ground of the optical axis of the instrument and delimited by a first field edge, the first image being sampled spatially with a first sampling step; b) acquisition, by the same instrument, of a second image having a second field of view not including the projection on the ground of the optical axis of the instrument and extending beyond the first field edge, the second image being sampled spatially with a second sampling step greater than the first sampling step. Space or airborne optical instruments and an image acquisition system for implementing the method are provided.