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Primary transforms for cross-component level reconstruction

專利號
US11930177B2
公開日期
2024-03-12
申請人
Tencent America LLC(US CA Palo Alto)
發(fā)明人
Madhu Peringassery Krishnan; Xin Zhao; Shan Liu
IPC分類
H04N19/12; H04N19/176; H04N19/18; H04N19/186; H04N19/46
技術(shù)領(lǐng)域
transform,coding,video,prediction,block,coded,in,may,picture,be
地域: CA CA Palo Alto

摘要

This disclosure relates generally to video coding and particularly to cross component level reconstruction. For example, a method is disclosed for processing video data which may include extracting a first transform block of a first color component and a second transform block of a second color component from a bitstream of a video block; determining that transform coefficients in the first transform block are all zero; determining that a CCLR is applied to the first transform block; refining one or more of the transform coefficients in the first transform block, to obtain a refined first transform block; determining a target transform kernel for the refined first transform block; performing a reverse transform on the refined first transform block based on the target transform kernel to obtain a target block; and reconstructing the first color component of the video block based on at least the target block.

說明書

It is noted that the electronic devices (420) and (430) can include other components (not shown). For example, the electronic device (420) can include a video decoder (not shown) and the electronic device (430) can include a video encoder (not shown) as well.

FIG. 5 shows a block diagram of a video decoder (510) according to any embodiment of the present disclosure below. The video decoder (510) can be included in an electronic device (530). The electronic device (530) can include a receiver (531) (e.g., receiving circuitry). The video decoder (510) can be used in place of the video decoder (410) in the example of FIG. 4.

權(quán)利要求

1
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