1 / A system for three-dimensional modeling and restitution of a subject of a determined scene in a three-dimensional space, the system comprising: a first subsystem comprising, placed in a single housing that is portable for an operator, at least one video camera for acquiring sequences of digital images of said subject, co-operating with first and second series of measurement means generating measurement signals measuring the attitude, location, and displacement of said video camera relative to three axes in a three-dimensional frame of reference, said first and second series of measurement means each comprising devices generating measurements relative to each of said axis in said frame of reference; a second subsystem comprising at least digital data processor means receiving the data signals characterizing said sequences of acquired digital images and said measurement signals measuring the attitude, location, and displacement of said video camera in said frame of reference, and responding to said data signals of acquired digital image sequences and said location and displacement signals to generate a three-dimensional model of said subject; and connection means between said first and second subsystems, said connection means conveying at least said data signals of acquired digital image sequences and said location and displacement signals.