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Method and apparatus for video coding

A video decoding and encoding technology, which is applied in the field of video encoding and decoding and devices, and can solve problems such as lossy MV prediction

Pending Publication Date: 2021-11-23
TENCENT AMERICA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other cases, the MV prediction itself may be lossy, e.g. due to rounding errors when computing the prediction from several surrounding MVs

Method used

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  • Method and apparatus for video coding
  • Method and apparatus for video coding
  • Method and apparatus for video coding

Examples

Experimental program
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Embodiment Construction

[0048] image 3 A simplified block diagram of a communication system (300) according to embodiments disclosed herein is illustrated. A communication system (300) includes a plurality of terminal devices that can communicate with each other via, for example, a network (350). By way of example, a communication system (300) includes a first pair of terminal devices (310) and terminal devices (320) interconnected by a network (350). exist image 3 In the embodiment of the present invention, a first pair of terminal device (310) and terminal device (320) performs unidirectional data transmission. For example, a terminal device (310) may encode video data (eg, a stream of video pictures captured by the terminal device (310)) for transmission to another terminal device (320) over the network (350). The encoded video data is transmitted in one or more encoded video streams. The terminal device (320) may receive encoded video data from the network (350), decode the encoded video da...

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Abstract

Aspects of the disclosure provide methods and apparatuses for video encoding / decoding. In some examples, an apparatus for video decoding includes processing circuitry. The processing circuitry can receive coded information of pictures in a coded video sequence. The coded information can include a coding tree unit (CTU) size information that indicates a CTU size selected for the pictures. The CTU size information can be encoded using a truncated unary code. The processing circuitry can determine the selected CTU size based on the CTU size information encoded using the truncated unary code. The processing circuitry can reconstruct samples in the pictures based on the selected CTU size. The selected CTU size can be 32*32, 64*64, or 128*128 luma samples.

Description

[0001] Incorporate text by reference [0002] This application claims priority to U.S. Patent Application Serial No. 16 / 941,193, filed July 28, 2020, and entitled "Method and Apparatus for Video Codec," filed August 13, 2019 Priority to US Provisional Application No. 62 / 886,056, entitled "Improved SPS Header Syntax and Descriptor for CTU Size," the entire contents of which are incorporated herein by reference. technical field [0003] This disclosure describes embodiments generally related to video codecs. Background technique [0004] The background description provided herein is intended to present the context of the application as a whole. To the extent that the work of the presently named inventors is described in the Background section and in the various aspects of this specification, it is not an admission that it was prior art as of the filing of this application and has never been admitted either expressly or by implication It is the prior art of this application. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/96
CPCH04N19/119H04N19/122H04N19/132H04N19/176H04N19/186H04N19/463H04N19/70H04N19/96
Inventor 杜祎鑫赵欣李翔刘杉
Owner TENCENT AMERICA LLC