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Method and apparatus for interaction between intra prediction mode and block differential pulse-code modulation mode

A technology of intra-frame prediction mode and inter-frame prediction mode, which is applied in image communication, digital video signal modification, electrical components, etc., and can solve problems such as small possibility

Pending Publication Date: 2021-10-29
TENCENT AMERICA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In all cases, however, there may be certain directions that are statistically less likely to occur in video content than certain other directions

Method used

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  • Method and apparatus for interaction between intra prediction mode and block differential pulse-code modulation mode
  • Method and apparatus for interaction between intra prediction mode and block differential pulse-code modulation mode
  • Method and apparatus for interaction between intra prediction mode and block differential pulse-code modulation mode

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Embodiment Construction

[0036] figure 2 A simplified block diagram of a communication system (200) according to one 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 pictur...

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Abstract

A method of video decoding performed in a video decoder includes determining whether a first block associated with a second block is coded with a block differential pulse code modulation (BDPCM) mode. The method further includes, in response to determining that the first block is coded with the BDPCM mode, associating the first block with an intra prediction mode value based on a BDPCM directional flag. The method further includes determining an inter prediction mode value for the second block using the intra prediction mode value associated with the first block. The method further includes reconstructing the second block using the determined intra prediction mode value.

Description

[0001] Incorporate by reference [0002] This application claims U.S. Patent Application Serial No. 16 / 862,221, entitled "METHOD AND APPARATUS FORINTERACTION BETWEEN INTRA PREDICTION MODE AND BLOCK DIFFERENTIAL PULSE-CODEMODULATION MODE," filed April 29, 2020 (claimed April 30, 2019 Priority benefit of U.S. Provisional Application No. 62 / 841,003 filed entitled "INTERACTION BETWEEN INTRA PREDICTION MODE AND BLOCK DIFFERENTIAL PULSE-CODEMODULATION MODE"). The entire content of the prior application is hereby incorporated 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 the work is 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 a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/593H04N19/91
CPCH04N11/046H04N19/11H04N19/157H04N19/176H04N19/186H04N19/196H04N19/593H04N19/70H04N19/159H04N19/619H04N19/82
Inventor 赵欣李翔赵亮刘杉
Owner TENCENT AMERICA LLC