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Video decoding method and device

A technology of video decoding and bit stream, which is applied in the field of video coding and decoding, and can solve the problem of low image block quality

Active Publication Date: 2022-07-29
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the image block is encoded and decoded through the combination of the above-mentioned division mode and prediction mode, and the quality of the obtained image block is low

Method used

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  • Video decoding method and device
  • Video decoding method and device

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Embodiment Construction

[0067] The terms "first" and "second" in the description and drawings of the present application are used to distinguish different objects, or to distinguish different processing of the same object, rather than to describe a specific order of the objects. Furthermore, references to the terms "comprising" and "having" in the description of this application, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes other unlisted steps or units, or optionally also Include other steps or units inherent to these processes, methods, products or devices. It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations, or illustrations. Any embodiments or designs described in the embodiments of the prese...

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Abstract

The present application provides a video decoding method and device, which relate to the technical field of video encoding and decoding, and can solve the problem of low quality of encoded video in the prior art. The method includes: parsing a code stream, where the code stream includes a prediction mode identification bit and a combined motion vector difference MMVD identification bit, the prediction mode identification bit is used to indicate a prediction mode of an image block to be decoded, and the prediction mode includes a triangular prediction unit mode and a joint inter frame At least one of the intra-frame prediction modes, the MMVD flag is used to indicate the acquisition method of the motion information of the to-be-decoded image block, and then the to-be-decoded image block is decoded according to the prediction mode flag and the MMVD flag. This method is applied in the video encoding and decoding process.

Description

technical field [0001] The present application relates to the technical field of video encoding and decoding, and in particular, to a video decoding method and device. Background technique [0002] With the development of Internet technology, the popularity of various Internet services has continued to increase. Among them, the user's demand for the quality of video services is also increasing. Generally, the video quality is inseparable from the video encoding and decoding method. A better video encoding and decoding method can ensure that a lower bit rate can be used when transmitting video images of the same quality, that is, a smaller amount of data can be transmitted. [0003] In the current video encoding and decoding scheme, at the encoding end, the video frame can be divided into several image blocks by selecting the division mode, the image block is predicted by selecting the prediction mode, and the predicted value of the image block is sent to the decoding side. ...

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Application Information

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IPC IPC(8): H04N19/176H04N19/50H04N19/513H04N19/52H04N19/593
CPCH04N19/176H04N19/52H04N19/513H04N19/593H04N19/50
Inventor 陈旭郑建铧
Owner HUAWEI TECH CO LTD
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