Optronic supra-hemispheric vision video system for a scene, which comprises a sensor with a supra-hemispheric optical unit and a matrix detector which is located in the focal plane of the optical unit, a processing unit for the captured images, means for displaying the processed images, characterised in that: the matrix detector is at video rate and comprises: i. L rows x C columns of pixels, with L and C > 2000, each pixel having correlated double sampling and being capable of ensuring a charge/voltage conversion, and ii. 2 C parallelised analogue/digital conversion elements (or ADC) for voltage, which are associated with each column of the matrix of the detector, respectively, each conversion element itself comprising a first ADC having a low input level and high gain and a second ADC with a high input level and low gain, in that the supra-hemispheric optical unit has a focal length f which is controlled as a function of the elevation angle, the focal length being the longest in the equatorial plane, and has a digital opening f/D between 0.9 and 1.6, D being the diameter of the optical unit, means for adaptation of the dynamic of the captured image to the dynamic of the scene by means of control of the exposure time and/or the gain, and in that, the detector comprising a predetermined temperature, exposure time and temporal noises, the captured image and the display means having a predetermined dynamic, the captured image having high and low spatial frequencies and the scene having a predetermined illumination, the processing unit comprises: i. means for correcting occurrences of non-uniformity of the detector using correction tables which are adapted as a function of the temperature and the exposure time of the detector, ii. means for weighted summation of a plurality of adjacent pixels, iii. means for compressing the dynamic of the image captured as a function of the temporal noises of the detector, increasing with the illumination of the scene, means for adapting the dynamic of the image captured to the dynamic of the display means and/or that of the eye, by means of restoring the high spatial frequencies of the image and compensating for the low spatial frequencies. the matrix detector is at video rate and comprises: i. L rows x C columns of pixels, with L and C > 2000, each pixel having correlated double sampling and being capable of ensuring a charge/voltage conversion, and ii. 2 C parallelised analogue/digital conversion elements (or ADC) for voltage, which are associated with each column of the matrix of the detector, respectively, each conversion element itself comprising a first ADC having a low input level and high gain and a second ADC with a high input level and low gain, i. L rows x C columns of pixels, with L and C > 2000, each pixel having correlated double sampling and being capable of ensuring a charge/voltage conversion, and ii. 2 C parallelised analogue/digital conversion elements (or ADC) for voltage, which are associated with each column of the matrix of the detector, respectively, each conversion element itself comprising a first ADC having a low input level and high gain and a second ADC with a high input level and low gain, in that the supra-hemispheric optical unit has a focal length f which is controlled as a function of the elevation angle, the focal length being the longest in the equatorial plane, and has a digital opening f/D between 0.9 and 1.6, D being the diameter of the optical unit, means for adaptation of the dynamic of the captured image to the dynamic of the scene by means of control of the exposure time and/or the gain, and in that, the detector comprising a predetermined temperature, exposure time and temporal noises, the captured image and the display means having a predetermined dynamic, the captured image having high and low spatial frequencies and the scene having a predetermined illumination, the processing unit comprises: i. means for correcting occurrences of non-uniformity of the detector using correction tables which are adapted as a function of the temperature and the exposure time of the detector, ii. means for weighted summation of a plurality of adjacent pixels, iii. means for compressing the dynamic of the image captured as a function of the temporal noises of the detector, increasing with the illumination of the scene, means for adapting the dynamic of the image captured to the dynamic of the display means and/or that of the eye, by means of restoring the high spatial frequencies of the image and compensating for the low spatial frequencies. i. means for correcting occurrences of non-uniformity of the detector using correction tables which are adapted as a function of the temperature and the exposure time of the detector, ii. means for weighted summation of a plurality of adjacent pixels, iii. means for compressing the dynamic of the image captured as a function of the temporal noises of the detector, increasing with the illumination of the scene, means for adapting the dynamic of the image captured to the dynamic of the display means and/or that of the eye, by means of restoring the high spatial frequencies of the image and compensating for the low spatial frequencies.