Inter-frame prediction method, terminal device and computer storage medium

Abstract

The invention discloses an inter-frame prediction method, a terminal devicet and a computer storage medium. The inter-frame prediction method comprises the following steps: constructing a candidate motion vector list of a current coding block; performing first prediction on the current coding block by using the candidate motion vector list to obtain a first prediction result, wherein the first prediction result comprises a plurality of first motion vectors and a first reference frame pointed by the first motion vectors; determining at least one prediction combination by using the first prediction result, wherein each prediction combination comprises two different first reference frames; carrying out symmetric vector residual prediction by using the prediction combination and the candidatemotion vector list corresponding to the prediction combination to obtain a second prediction result; and selecting the second prediction result with the minimum prediction cost as the symmetric motionvector residual prediction result of the current coding block. Through the inter-frame prediction method, the accuracy of the prediction value can be improved, the time redundancy is further removed,and the compression ratio of inter-frame coding is improved.

Description

technical field [0001] The present application relates to the technical field of video encoding and decoding, and in particular, relates to an inter-frame prediction method, a terminal device, and a computer storage medium. Background technique [0002] In recent years, there has been an increasing demand for images having high resolution and high quality, such as high definition (HD) video and ultra high definition (UHD) video, in various fields. Compared with existing image data, high-resolution and high-quality image data requires a relatively huge amount of information or bit amount. Therefore, when image data is transmitted by using a medium such as an existing wired / wireless broadband line, or when image data is stored by using an existing storage medium, transmission costs and storage costs rise. To solve these problems, efficient image compression techniques can be used. [0003] The existing image compression technology uses SMVD (Symmetrical MVD) mode inter-frame...

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Problems solved by technology

[0004] This application provides an inter-frame prediction method, terminal equipment, and computer storage medium to solve the problem of poor prediction value accuracy in the inter-frame prediction in the prior art

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