FIELD: information technology.
SUBSTANCE: each re-encoded frame of a multiview video sequence, defined according to a predetermined encoding sequence, is presented as a set of non-overlapping units; at least one of already encoded frame is determined, which corresponds to said view and denoted as reference; synthesised frames are generated for the encoded and reference frames, wherein for each non-overlapping unit of pixels of the encoded frame, denoted as the encoded unit, a spatially superimposed unit inside the synthesised frame is determined, which corresponds to the encoded frame, denoted as a virtual unit, for which the spatial position of the unit of pixels in the synthesised frame which corresponds to the reference frame is determined, so that the reference virtual unit thus determined is the most accurate numerical approximation of the virtual unit; for the determined reference virtual unit, the spatially superimposed unit which belongs to the reference frame, denoted as the reference unit, is determined, and the error between the virtual unit and the reference virtual unit is calculated, as well as the error between the reference virtual unit and the reference unit; the least among them is selected and based thereon, at least one differential encoding mode is determined, which indicates which of the units found at the previous should be used to perform prediction during the next differential encoding of the encoded unit, and differential encoding of the encoded unit is carried out in accordance with the selected differential encoding mode.
EFFECT: providing differential encoding of a frame using a small volume of service information by taking into account known spatial connections between neighbouring views at each moment in time, as well as information available during both encoding and decoding.
5 cl, 15 dwg
