Image decoding methods, image encoding methods, and bit current transmission equipment

Abstract

The invention relates to a method for decoding images, which may include the following steps: Acquiring first reference patterns located at the top left of the current block; Acquiring second reference patterns located at the top right and at the bottom of the current block; and to obtain prediction patterns for the current block based on the first and second reference patterns, where the second reference patterns can be obtained based on the first reference patterns, and provisional prediction patterns are generated by performing provisional prediction on the current block based on the provisional prediction mode.