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Method and device for adaptive inter-frame prediction of video codec

A video codec and inter-frame prediction technology, which is applied in digital video signal modification, image communication, electrical components, etc., can solve the problem that inter-frame prediction cannot well adapt to the local characteristics of blocks

Active Publication Date: 2021-11-05
HFI INNOVATION INC
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Problems solved by technology

Therefore, the traditional inter prediction cannot adapt well to the local features of the block

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  • Method and device for adaptive inter-frame prediction of video codec
  • Method and device for adaptive inter-frame prediction of video codec
  • Method and device for adaptive inter-frame prediction of video codec

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[0019] The following description is a preferred mode of carrying out the present invention. The purpose of this description is to illustrate the general principles of the invention, not to limit it. The scope of protection of the present invention should be defined by the claims.

[0020]As mentioned in the previous section, traditional inter prediction is quite static and cannot adapt to the local features of the underlying video. Therefore, in one embodiment provided by the present application, the correlation between the current block and adjacent reconstructed pixels is used to realize the local adaptation of the inter prediction. This method is called adaptive inter prediction.

[0021] In one embodiment, multiple inter prediction processes may be used and neighboring reconstructed pixels around the current block may be used for a selected inter prediction process, thereby selecting an inter prediction method corresponding to an interpolation filter and / or for A set of...

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Abstract

This application discloses a method and device for adaptive inter-frame prediction of video coding and decoding. A selected inter prediction process is determined, wherein the selected inter prediction process is selected from a plurality of inter prediction filters based on first pixel data including a neighboring reconstructed pixel (NRP) of the current block for The inter prediction filter for the current block. The selected inter prediction process may be further determined according to extra motion compensated pixels (extra motion compensated pixels, EMPC) around the motion compensated reference block corresponding to the current block. The distortion between NRP and EMCP can be used to determine the selected inter prediction filter. The distortion can be calculated using the sum of the absolute differences or the sum of the squares of the differences between NRP and EMCP.

Description

[0001] priority statement [0002] This application is based on and claims the priority of PCT patent application No. PCT / CN2015 / 088952 filed on September 6, 2015, which is incorporated herein by reference in its entirety. technical field [0003] This application relates to video coding and decoding of video data. In particular, the present application relates to adaptive inter prediction in video codecs for improving codec efficiency. Background technique [0004] Video data requires a large amount of storage space for storage or a wide bandwidth for transmission. With the improvement of high resolution and high frame rate, if the video data is stored or transmitted in uncompressed format, the requirements for storage space or bandwidth will be quite high. Therefore, video data is usually stored or transmitted in a compressed format using video codec technology. Using newer video compression formats such as H.264 / AVC and HEVC (High Efficiency Video Codin, High Efficien...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/159
CPCH04N19/107H04N19/70H04N19/176H04N19/117H04N19/14H04N19/82H04N19/59H04N19/577H04N19/109H04N19/137
Inventor 陈庆晔徐志玮黄晗黄毓文
Owner HFI INNOVATION INC
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