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Video decoding method and device, video encoding method and device, storage medium, decoder and encoder

A video decoding and encoding technology, applied in the computer field, can solve the problems of poor flexibility of encoding and decoding, and achieve the effect of solving the poor flexibility of encoding and decoding and improving flexibility.

Pending Publication Date: 2019-12-13
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a video decoding and encoding method and device, a storage medium, a decoder, and an encoder to at least solve the technical problem of poor flexibility in encoding and decoding video frames in the related art

Method used

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  • Video decoding method and device, video encoding method and device, storage medium, decoder and encoder
  • Video decoding method and device, video encoding method and device, storage medium, decoder and encoder
  • Video decoding method and device, video encoding method and device, storage medium, decoder and encoder

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Embodiment approach

[0166] As an optional implementation, the determining unit includes:

[0167] (1) A first determination module, configured to determine that the target resolution is the first when the directional prediction mode difference value indicates that the intra-texture complexity of the block to be encoded is greater than or equal to a first predetermined threshold resolution;

[0168](2) A second determining module, configured to determine when the directional prediction mode difference value indicates that the intra-frame texture complexity of the block to be encoded is less than the first predetermined threshold and greater than or equal to a second predetermined threshold The target resolution is a second resolution, wherein the first resolution is smaller than the second resolution;

[0169] (3) A third determination module, configured to determine when the directional prediction mode difference value indicates that the intra-frame texture complexity of the block to be encoded ...

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Abstract

The invention discloses a video decoding method and device, a video encoding method and device, a storage medium, a decoder and an encoder. The method comprises: acquiring directional prediction modesof at least two reference blocks in a decoded block, wherein the reference blocks are reference blocks of a to-be-decoded block; determining a directional prediction mode difference value of the reference blocks according to the directional prediction modes of the at least two reference blocks, and determining a target resolution for decoding the to-be-decoded block according to the directional prediction mode difference value; and decoding the block to be decoded by adopting the target resolution. According to the invention, the technical problem of poor flexibility of encoding and decodingthe video frame in the prior art is solved.

Description

technical field [0001] The present invention relates to the computer field, in particular, to a video decoding and encoding method and device, a storage medium, a decoder, and an encoder. Background technique [0002] In the existing video encoding process, the same resolution is usually used for encoding and decoding in one frame of the video. Such as figure 1 As shown, if high resolution is used for encoding and decoding in one frame of the video, the bandwidth bits for transmission are relatively small (for example, less than figure 1 In the case of bandwidth threshold intersection D) shown in , the peak signal-to-noise ratio (PSNR) corresponding to encoding and decoding of a frame of video with high resolution is lower than that of a frame of video with low resolution The peak signal-to-noise ratio (PSNR) corresponding to encoding and decoding, that is, when the transmission bandwidth is small, the peak signal-to-noise ratio (PSNR) when encoding and decoding with high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/593H04N19/59H04N19/14H04N19/176H04N19/44
CPCH04N19/593H04N19/59H04N19/14H04N19/176H04N19/44
Inventor 高欣玮
Owner TENCENT TECH (SHENZHEN) CO LTD
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