Imaging method and system under high and low illumination levels

摘要

The invention relates to a method for imaging a scene using an imaging system making it possible to obtain an image of the scene, the imaging system comprising a device for acquiring frames according to acquisition parameters, and a unit for processing the acquired frames. The method comprises the steps: A) selection of an imaging mode from among a conventional imaging mode, a natural photon-counting imaging mode and a forced photon-counting imaging mode, and, depending on the selected imaging mode, determination by the processing unit of corresponding acquisition parameters, B) acquisition of at least one frame by the acquisition device parameterized with said acquisition parameters, and transmission of the frames that were acquired to the processing unit in order to obtain an image, the image being obtained at the end of the following sub-steps if the selected imaging mode is the natural photon-counting imaging mode or the forced photon-counting imaging mode: -binarization of the frames that were acquired and -summing the binarized frames to obtain an image, C) estimation of the quality of the image obtained, D) D1) depending on the quality of the image obtained, determining a new imaging mode selected among the conventional imaging mode, the natural photon-counting imaging mode, and the forced photon-counting imaging mode, D2) repeating steps A, B, C and D with the new imaging mode selected as the imaging mode.