54. The method of encoding according to any one of claims 46 to 49 , wherein in order to binarize at least one syntactic element, depending on values of the already encoded bits of the syntactic element, two or more independent methods of binarization are used; at least two groups of context models are selected using binarized values obtained by various methods of binarization; and/or at least two groups of context models are selected by a current ordinal number of the encoded bit in a binarized string obtained from a current syntactic element.
54. The method of encoding according to any one of claims 46 to 49 , wherein in order to binarize at least one syntactic element, depending on values of the already encoded bits of the syntactic element, two or more independent methods of binarization are used; at least two groups of context models are selected using binarized values obtained by various methods of binarization; and/or at least two groups of context models are selected by a current ordinal number of the encoded bit in a binarized string obtained from a current syntactic element. 57. The method of encoding according to claim 54 , wherein unary encoding, and/or encoding according to the Huffman method, and/or encoding by the Golomb code, and/or encoding by the universal code, is used in various combinations as the methods of binarization.