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Method and equipment for in-frame and inter-frame combined prediction in video coding

An intra-frame prediction and video coding technology, which is applied in the fields of digital video signal modification, electrical components, image communication, etc., and can solve the problems of complex process and low coding efficiency.

Active Publication Date: 2020-04-14
BEIJING DAJIA INTERNET INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a method and equipment for intra-frame and inter-frame joint prediction in video coding, which are used to solve the problems of low coding efficiency and complicated process existing in the existing method for obtaining CIIP prediction

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  • Method and equipment for in-frame and inter-frame combined prediction in video coding
  • Method and equipment for in-frame and inter-frame combined prediction in video coding

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Embodiment 1

[0143] An embodiment of the present invention provides a method for intra-frame and inter-frame joint prediction in video coding, which is applied to the video coding end, such as figure 1 shown, including:

[0144] Step S101, acquiring a current video image frame, and determining a coding block CU in the video image frame;

[0145] Obtain the current video image frame, and determine the coding block CU in the video image frame. The image division structure divides the input current video image frame into blocks called coding tree units CTU, and uses a quadtree with a nested multi-type tree structure to divide a coding tree unit CTU into coding blocks CU, which have Leaf CUs defining regions that share the same prediction mode, which may be intra or inter, etc. Each CU contains one or more PUs and TU trees.

[0146] Step S102: In the process of decoding the CU in merge mode, if it is determined that CIIP is used for intra-frame and inter-frame joint prediction, use the dete...

Embodiment 2

[0213] A method for joint intra-frame and inter-frame prediction in video coding according to the present invention is described above, and a device for performing the above-mentioned method for intra-frame and inter-frame joint prediction in video coding is described below.

[0214] see Figure 6 , an embodiment of the present invention provides a device for intra-frame and inter-frame joint prediction in video coding, the device is applied to a video decoding end, including:

[0215] An encoding block acquisition module 601, configured to acquire a current video image frame, and determine an encoding block CU in the video image frame;

[0216] The intra-frame and inter-frame prediction module 602 is configured to use the determined inter-frame prediction mode to obtain the inter-frame prediction signal of the CU when it is determined that the intra-frame and inter-frame joint prediction CIIP is used during the decoding process of the CU using the merge mode, Obtain an intra...

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Abstract

The invention provides a method and equipment for in-frame and inter-frame combined prediction in video coding. The equipment performs the following steps of acquiring a current video image frame, anddetermining a coding block CU in the video image frame; in a combined mode decoding process on the CU, when in-frame and inter-frame combined prediction CIIP is determined, obtaining an inter-frame prediction signal of the CU by means of a defined inter-frame prediction mode, and obtaining an in-frame prediction signal of the CU by means of a defined in-frame prediction mode; performing weightingprocessing on the inter-frame prediction signal and the in-frame prediction mode for obtaining a CIIP prediction signal, and indicating the defined inter-frame prediction mode to a decoding terminalthrough combining the index, and indicating the code which corresponds with the defined in-frame prediction mode to the decoding terminal according to the mapping relation between the preset differentin-frame prediction modes and the code. The method and the equipment for in-frame and inter-frame combined prediction in video coding according to the invention settle problems of low coding efficiency and complicated process in an existing method for obtaining CIIP prediction.

Description

[0001] This application claims priority to U.S. Patent Application No. 62 / 787,237, entitled "Intra Mode Coding for the Combined Inter and Intra Prediction," filed with the U.S. Patent Office on December 31, 2018, in its entirety Incorporated in this application by reference. technical field [0002] The invention relates to the technical field of video coding and compression, in particular to a method and device for intra-frame and inter-frame joint prediction in video coding. Background technique [0003] Various video coding techniques may be used to compress the video data while processing the video data. Video encoding is performed according to one or more video encoding standards. For example, video coding standards include Versatile Video Coding (VVC), Joint Exploration Model (JEM), High Efficiency Video Coding (HEVC), Advanced Video Coding (AVC), Moving Picture Experts Group (MPEG) coding, etc. . Video coding generally utilizes redundant prediction methods in video...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/503H04N19/593H04N19/13H04N19/107H04N19/119H04N19/176
CPCH04N19/503H04N19/593H04N19/13H04N19/107H04N19/119H04N19/176
Inventor 陈漪纹王祥林
Owner BEIJING DAJIA INTERNET INFORMATION TECH CO LTD