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Methods and apparatuses for video coding

A video decoding and coded technology used in digital video signal modification, image communication, electrical components, etc.

Active Publication Date: 2021-07-23
TENCENT AMERICA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The processing circuit determines whether the motion vector prediction index is less than a threshold

Method used

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  • Methods and apparatuses for video coding
  • Methods and apparatuses for video coding
  • Methods and apparatuses for video coding

Examples

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Embodiment Construction

[0071] figure 2 A simplified block diagram of a communication system (200) according to an embodiment of the present disclosure is shown. A communication system (200) includes a plurality of terminal devices that can communicate with each other via, for example, a network (250). As an example, a communication system (200) includes a first pair of end devices (210) and (220) interconnected by a network (250). exist figure 2 In the example of , the first terminal device performs unidirectional data transfer to (210) and (220). For example, a terminal device (210) may encode video data (eg, a stream of video pictures captured by the terminal device (210)) for transmission to another terminal device (220) over the network (250). The encoded video data may be transmitted in one or more encoded video bitstreams. The terminal device (220) may receive encoded video data from the network (250), decode the encoded video data to restore video pictures, and display the video pictures ...

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Abstract

Aspects of the disclosure provide methods and apparatuses for video encoding / decoding. An apparatus for video decoding includes processing circuitry that decodes prediction information for a current block in a current coded picture. The prediction information indicates a motion vector predictor index (MVP_idx) for selecting a motion vector predictor in a motion vector predictor list. The processing circuitry determines whether the MVP_idx is smaller than a threshold. When the MVP_idx is determined to be smaller than the threshold, the processing circuitry decodes a motion vector difference (MVD) corresponding to the motion vector predictor and reconstructs the current block based on the motion vector predictor and the MVD. When the MVP_idx is determined to be equal to or larger than the threshold, the processing circuitry reconstructs the current block based on the motion vector predictor without the MVD which is not signaled in the coded video sequence.

Description

[0001] Incorporate by reference [0002] This application claims U.S. Patent Application Serial No. 16 / 698,322, filed November 27, 2019, entitled "METHODS AND APPARATUSES FORVIDEO CODING," which claims the title "FLEXIBLE MOTION VECTOR PREDICTION 62 / 776,350, and the priority benefit of U.S. Provisional Application No. 62 / 787,044, filed December 31, 2018, entitled "IMPROVED MOTION VECTOR DIFFERENCE CODING"). The entire disclosure of the prior application is incorporated herein by reference in its entirety. technical field [0003] This disclosure describes embodiments generally related to video encoding. Background technique [0004] The background description provided herein is for the purpose of generally presenting the context of the disclosure. To the extent described in this Background section, the work of the presently named inventors and aspects of this description that would not otherwise qualify as prior art at the time of filing are neither expressly nor impliedly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/00
CPCH04N19/52H04N19/70H04N19/91H04N19/577H04N19/56
Inventor 徐萌李翔许晓中李贵春刘杉赵欣
Owner TENCENT AMERICA LLC