DEVICE FOR GENERATING CINEMATOGRAPHIC RUSHES VIA VIDEO ANALYSIS

摘要

The device includes: - a memory (4), receiving initial data defining a video shot in the form of sequential image data; and - a detector (6), framer (8), and solver (10), wherein the detector (6) processes the sequential image data in order to detect subject coordinate data from image data defining one or more rush subjects, and the framer (8) processes the sequential image data in order to determine framing data, for at least some of the images, on the basis of rush parameters, referring to at least one rush subject and rush format, and on the basis of the subject coordinate data. The framing data includes, for each image associated therewith, data defining a minimum frame and a maximum frame that contain at least one rush subject indicated by the rush parameters, and the solver (10) produces rush data from sequential image data, framing data associated with the sequential images, and rush parameters. The rush data is selected from among a plurality of image sequences formed by combining portions of the sequential images that are contained within a frame bigger than the minimum frame and smaller than the maximum frame that are associated with a given frame for said rush. The solver has a function that calculates, for a given image sequence, a plurality of values that quantify the movement of a virtual camera associated with the shot from said image sequence and are arranged so as to select, as an image sequence defining the rush data, the one, the associated plurality of values of which minimizes the speed and the derivative of the acceleration of the virtual camera that is associated with said values.