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Coded Chroma Samples in Video Compression

A sample and chroma technology, applied in the field of equipment for encoding chroma samples, can solve the problem of pixel spectral redundancy in three primary color channels

Active Publication Date: 2022-04-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the main problems with the RGB system is the possible spectral redundancy between the pixels of the three primary color channels

Method used

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  • Coded Chroma Samples in Video Compression
  • Coded Chroma Samples in Video Compression
  • Coded Chroma Samples in Video Compression

Examples

Experimental program
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Embodiment Construction

[0027] The present invention relates to video coding. Figures 1A to 1E Various tree exploded views are shown. FIG. 1 shows a block partition structure using a quad-tree (quad-tree, QT) decomposition graph. QT is a block partition tree structure, in which a node with a size of 4Mx4N can be decomposed into four child nodes with a size of 2Mx2N. Figure 1B A block partition structure using a binary tree (binary tree, BT) decomposition graph in the vertical direction is shown. Figure 1C A block partition structure using a binary tree (binarytree, BT) decomposition graph in the horizontal direction is shown. BT is a block partition tree structure, in which a node with a size of 4Mx4N can be divided horizontally into two child nodes with a size of 4Mx2N or vertically into two child nodes with a size of 2Mx4N. Figure 1D A block partition structure using a triple tree (TT) decomposition graph in the vertical direction is shown. Figure 1E It shows a block partition structure us...

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Abstract

The present invention describes a decoder and a method of processing chroma blocks by the decoder. The method includes: receiving an encoded block from an encoder; dividing the encoded block into a plurality of chroma blocks; merging at least two of the plurality of chroma blocks into a merged block, wherein the at least two the width or height of one of the chroma blocks is less than a threshold, and the width or height of the merging block is not less than the threshold; deriving prediction information for the merging block; generating prediction samples based on the derived prediction information; and according to the The predicted samples generated as described above are used to obtain reconstructed chroma samples. Hardware complexity can be reduced by merging the at least two chrominance blocks whose width or height is smaller than a threshold into the merging block.

Description

[0001] Related Applications Cross Application [0002] This application claims priority to prior application to U.S. Patent Application No. 15 / 856,326, filed December 28, 2017, entitled "Coding Chroma Samples in Video Compression," which claims May 2017 Priority to Priority Application to U.S. Provisional Patent Application No. 62 / 503,777, filed on 9, entitled "Coding Chroma Samples in Video Compression," the contents of both earlier applications are incorporated herein by reference middle. technical field [0003] The invention relates to the field of image compression, in particular to a device and method for encoding chroma samples in video compression. Background technique [0004] In the field of image compression, prediction techniques have been extensively investigated over the past few decades for image and video compression. [0005] A digital video sequence is a temporal sequence of digital images, also known as pictures or frames, that can exhibit a large number...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/186
CPCH04N19/119H04N19/96H04N19/186H04N19/11H04N19/521H04N19/176
Inventor 刘杉赵寅
Owner HUAWEI TECH CO LTD