Block separation methods, equipment used in image encoders and / or image decoders, encoders, decoders, and computer-readable invariant media

Abstract

The invention relates to a smoke-sweeping method, a device for use in an image encoder and / or image decoder, an encoder, a decoder, and a computer-readable invariant medium, wherein the encoder consists of transformation blocks encoded in an internal predictive mode and the transformation blocks consist of a first transformation block and a second transformation block adjacent to the first transformation block; The method includes the following steps: determine that when the boundary between the first and second transformation blocks is the boundary of the transformation block (such as the SBT boundary) and at least one of the first and second transformation blocks has one or more non-zero transformation coefficients (one or more non-zero residual transformation coefficients), the value of the boundary strength (BS) parameter for the boundary between the first and second transformation blocks is the first value; and perform a block separation and filtering process to the boundary between the first and second transformed blocks, at least based on the boundary intensity parameter value.