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Methods on scaling in video coding

A codec and video technology, applied in the field of zooming in video codec

Pending Publication Date: 2021-12-17
BEIJING BYTEDANCE NETWORK TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Despite advances in video compression, digital video still accounts for the greatest bandwidth usage on the Internet and other digital communication networks

Method used

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  • Methods on scaling in video coding
  • Methods on scaling in video coding
  • Methods on scaling in video coding

Examples

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Embodiment Construction

[0018] Embodiments of the disclosed techniques can be applied to existing video codec standards (eg, HEVC, H.265) and future standards to improve compression performance. Section headings are used in this document to improve the readability of the description and in no way limit the discussion or embodiments (and / or implementations) to the corresponding section only.

[0019] 2 Video Codec Introduction

[0020] Video codec methods and techniques are ubiquitous in modern technology due to the increasing demand for higher resolution video. Video codecs generally include electronic circuits or software that compress or decompress digital video, and are constantly being improved to provide greater coding efficiency. A video codec converts uncompressed video to a compressed format and vice versa. Video quality, amount of data (determined by bitrate) used to represent video, complexity of encoding and decoding algorithms, susceptibility to data loss and errors, ease of editing, ra...

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Abstract

Devices, systems and methods for digital video coding, which includes scaling and division operations in video coding, are described. An exemplary method for video processing includes performing a conversion between a current video block of a video and a coded representation of the video, and the conversion comprises: approximating a result of a division operation N / D to be used in a specific mode for processing the current video block with one or more operations to replace the division operation, N and D representing numerator and denominator in the division operation respectively, and each of the one or more operations is different from the division operation.

Description

[0001] Cross References to Related Applications [0002] Under the applicable patent law and / or in accordance with the rules of the Paris Convention, this application seeks in time to claim the International Patent Application No. PCT / CN2019 / 086789 filed on May 14, 2019 and the International Patent Application No. Priority and benefits of patent application number PCT / CN2019 / 091910. The entire disclosure of the above-mentioned patent application is hereby incorporated by reference as part of the disclosure of the present application. technical field [0003] This patent document relates to video codec technology, equipment and system. Background technique [0004] Despite advances in video compression, digital video still accounts for the greatest bandwidth usage on the Internet and other digital communication networks. The demand for bandwidth used by digital video is expected to continue to grow as the number of interconnected user devices capable of receiving and displa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/50H04N19/587
CPCH04N19/42H04N19/513H04N19/186
Inventor 张凯张莉刘鸿彬王悦
Owner BEIJING BYTEDANCE NETWORK TECH CO LTD
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