FIELD: information technology.
SUBSTANCE: method for block interframe motion compensation for video encoders includes breaking down an image into hexagonal blocks. The blocks are grouped in three layers. For each block, a displacement vector is searched based on a search pattern defined for a layer. The search region is preliminarily shifted by a predicted vector calculated from vectors of neighbouring blocks from previous layers for which a displacement vector has been found already. Standard deviation is calculates using a special weighting function (mask) which takes into account the hexagonal shape of the block.
EFFECT: improved visual quality of a reconstructed video sequence by reducing displacement vector prediction error due to improved correlation properties of the used blocks.
4 dwg
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