FIELD: information technology.
SUBSTANCE: provided are a twelve-pixel filter support, which may be used for interpolation, techniques which use coefficient symmetry and pixel symmetry to reduce the amount of data needed to be sent between an encoder and a decoder to configure the filter support for interpolation, and techniques for filtering data at integer pixel locations in a manner that is similar to sub-pixel interpolation. Information in the bit stream is also encoded to convey the type of filter used and the filter coefficients used.
EFFECT: high accuracy of predictive data used during fractional interpolation and improved predictive data of integer blocks of pixels.
34 cl, 29 dwg
