METHOD OF SCALABLE CODING AND DECODING OF VIDEO SIGNAL Russian patent published in 2011 - IPC H04N7/30 

FIELD: information technologies.

SUBSTANCE: information on motion, such as reference indices, vector of motion, modes, etc. for layer of quality improvement may be obtained from basic layer, and reference index for unit of image of quality improvement layer is determined using median criterion on the basis of basic layer. Reference index for unit, having highest quantity of pixels, corresponding to pixels of image unit, in basic layer is selected as reference index for unit of images, and if more than one unit in basic layer has identical number of pixels corresponding to pixels of image unit, the closes reference index is selected. Also, as vector of motion for image unit, a vector of motion for basic layer unit is selected, related to selected reference index.

EFFECT: provides for high-quality image, even if only part of full sequence of images generated as a result of coding is decoded.

2 cl, 6 dwg