LIMITATION OF REPRESENTATION OF DIFFERENTIAL PULSE CODE MODULATION OF CODED VIDEO QUANTIZED RESIDUAL Russian patent published in 2023 - IPC H04N19/132 H04N19/11 H04N19/176 

Abstract RU 2807214 C2

FIELD: means for processing video data.

SUBSTANCE: for conversion between the current video block and the video bitstream, that the differential encoding mode used for the remainder samples is applied to the current video block. Based on the specified definition, the specified transformation is performed using the differential coding mode. In this case, in the differential coding mode, the differences between the quantized residuals obtained using intra-frame prediction and the quantized residual predictors are represented in a bit stream, and at least one of the reconstructed quantized residuals is obtained based on the sum of one difference and the other reconstructed quantized residual. The values of the reconstructed quantized residuals are limited to a certain range by applying a constraint operation to the reconstructed quantized residuals.

EFFECT: increase of video data processing efficiency.

15 cl, 22 dwg

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RU 2 807 214 C2

Authors

Zhu, Weijia

Zhang, Li

Xu, Jizheng

Chuang, Hsiao Chiang

Dates

2023-11-13Published

2020-04-23Filed