INTERPOLATION-LIKE FILTERING OF INTEGER PIXEL POSITIONS IN VIDEO CODING Russian patent published in 2013 - IPC H04N7/46 

FIELD: information technology.

SUBSTANCE: provided is 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. Other aspects of the invention relate to techniques for encoding information in a bit stream to convey the type of filter used, and possibly the filter coefficients used.

EFFECT: high accuracy of predictive data used in fractional interpolation and improved predictive data of integer blocks of pixels.

43 cl, 29 dwg