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Intra-prediction using a cross-component linear model in video coding

A linear model and component technology, applied in the field of video decoding, can solve the problem of video size becoming a problem

Active Publication Date: 2021-02-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The size of the video can also be an issue when storing the video in a storage device as memory resources can be limited

Method used

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  • Intra-prediction using a cross-component linear model in video coding
  • Intra-prediction using a cross-component linear model in video coding
  • Intra-prediction using a cross-component linear model in video coding

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Embodiment Construction

[0079] It should be understood at the outset that although an illustrative implementation of one or more embodiments is provided below, the disclosed systems and / or methods may be implemented using any number of techniques, whether currently known or in existence. The invention should in no way be limited to the illustrative implementations, drawings, and techniques illustrated below, including the exemplary designs and implementations illustrated and described herein, but rather be within the scope of the appended claims and their equivalents Modified within the full range of .

[0080] Video coding involves dividing a video frame into blocks and encoding the blocks through intra prediction and inter prediction to compress the video file size. Specifically, a video frame may be divided into coding units (coding units, CUs), and these coding units include a luma coding block (coding block, CB) and a chroma CB (respectively, luma values ​​and color values). Then, prediction (i...

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Abstract

A video coding mechanism is disclosed. The mechanism includes receiving a video signal partitioned into a chroma block and a first neighboring luma block. The mechanism also includes encoding prediction information for chroma samples of the chroma block into a bitstream. The prediction information for the chroma samples is determined via intra-prediction based on down-sampled neighboring luma samples. The down-sampled neighboring luma samples are generated from a single row of luma samples from the first neighboring luma block. A bitstream including the prediction information for the chroma samples is transmitted to support decoding and display of the chroma samples.

Description

[0001] Related Applications Cross Application [0002] This patent application requires the US provisional application number 62 / 697,268 submitted by Ma Xiang et al. on July 12, 2018, and the invention title is "Intra Prediction Using Cross-Component Linear Model" The benefit of the patent application, the entire content of which is incorporated herein by reference. technical field [0003] The present invention relates generally to video coding, and more particularly to using luma pixels to predict chroma pixels by intra prediction as part of a video coding mechanism. Background technique [0004] Large amounts of video data need to be described even in the case of short videos, which can cause difficulties when the data is to be transmitted or otherwise transmitted in a communication network with limited bandwidth capacity. Therefore, video data is usually compressed before being sent over modern telecommunications networks. Since memory resources may be limited, the siz...

Claims

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Application Information

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IPC IPC(8): H04N19/176H04N19/186H04N19/593
CPCH04N19/186H04N19/176H04N19/132H04N19/11H04N19/59H04N19/593
Inventor 马祥陈建乐杨海涛
Owner HUAWEI TECH CO LTD