IMAGE SIGNAL DECODING APPARATUS, IMAGE SIGNAL DECODING METHOD, IMAGE SIGNAL ENCODING APPARATUS, IMAGE ENCODING METHOD AND PROGRAMME Russian patent published in 2014 - IPC H04N13/00 

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to image signal decoding means. The method involves decoding by determining an initial frame position in a main stream based on an access unit delimiter, which indicates the boundary between access units at the beginning of a frame, a basic stream in which the access unit delimiter is inserted in form of a NAL unit, which includes a NAL unit content parameter, decoding by determining the initial frame position in a dependant stream based on a dependant delimiter which indicates the boundary between frames at the beginning of the frame, a dependant stream in which the dependant delimiter is inserted in form of a NAL unit, which includes a parameter having a value different from the value of the parameter of the access unit delimiter.

EFFECT: enabling easy detection of image boundaries in a dependant bit stream.

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