1. Cinematography and recording modes

Classical" cinematography consists of a sequence of images, recorded one after the other on a material support, traditionally photographic film or magnetic tape. Four quantities of space, time and intensity are thus stored on the image support.

More precisely, each image integrates on the film, for a period of time called exposure time, photons distributed along two dimensions of space x and y constituting each elementary point of the image. The blackening of the film (measured in optical density) at this given point in the image provides the third dimension; it is linked to the incident power (measured in watts) or energy (in joules) emitted by the corresponding point. The two quantities (exposure time t and interval dt between exposures) complete the temporal quantification of shooting conditions. The sequence is thus characterized by the four-component "image...