Coding method and device, electronic equipment and storage medium

Abstract

The invention provides a coding method and device, electronic equipment and a storage medium. The coding method comprises the following steps: determining a prediction mode of a current block based on a prediction mode of a reference block of the current block and a prediction mode of a neighborhood block of the current block, wherein the reference block of the current block is a block corresponding to the position of the current block in the previous frame of image of the current block, or an original matching block of the current block, and the neighborhood blocks of the current block are blocks of a preset number with the current block as the center; and encoding the current block based on the prediction mode of the current block. Therefore, the probability of blocking effect occurrence can be effectively reduced.

Description

technical field [0001] The present invention relates to the technical field of video encoding and decoding, in particular to an encoding method, device, electronic equipment, and storage medium. Background technique [0002] The current coding standard is still a block-based hybrid coding framework. In the coding process, block-based transformation is performed on the residual, so that the correlation between blocks is ignored, and different quantization is used for the transformation coefficients, so that Different image blocks are processed differently. For the human eye, it is easy to observe the discontinuity between blocks, that is, the block effect. Although the coding standard has also taken into account how to further remove block effects in the process of development (for example: De-Blocking technology is introduced in H.264 / AVC, SAO (Sample Adaptive Offset, sample adaptive offset) is introduced in H.265 / HEVC Compensation) technology, ESAO and other technologies i...

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Problems solved by technology

[0002]The current coding standard is still a block-based hybrid coding framework. During the coding process, block-based transformation is performed on the residual to make the correlation between blocks The nature is ignored, and different quantization is used for the transform coefficients, so that different image blocks are processed differently. For the human eye, it is easy to observe the discontinuity between blocks, that is, the block effect

Although the coding standard has also taken into account how to further remove block effects in the process of development (for example: De-Blocking technology is introduced in H.264 / AVC, SAO (Sample Adaptive Offset, sample adaptive offset) is introduced in H.265 / HEVC Compensation) technology, ESAO and other technologies introduced in H.266 / VVC and AVS3), but block effects still frequently appear in practical applications, and removing block effects has always been one of the key problems that the industry needs to solve

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