US 2020/0404295 A1Published application

Scalable Prediction Type Coding

AssigneeTexas Instruments Incorporated

InventorMinhua Zhou

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Abstract

A method for encoding a video sequence is provided that includes signaling in the compressed bit stream that a subset of a plurality of partitioning modes is used for inter-prediction of a portion of the video sequence, using only the subset of partitioning modes for prediction of the portion of the video sequence, and entropy encoding partitioning mode syntax elements corresponding to the portion of the video sequence, wherein at least one partitioning mode syntax element is binarized according to a pre-determined binarization corresponding to the subset of partitioning modes, wherein the pre-determined binarization differs from a pre-determined binarization for the least one partitioning mode syntax element that would be used if the plurality of partitioning modes is used for inter-prediction.

Claims12

Dependent claims

A method for encoding a video sequence in a video encoder, the method comprising:

signaling in a slice header of a bit stream whether a subset of a plurality of partitioning modes includes non-square symmetric partitioning modes, whether the subset of the plurality of partitioning modes includes asymmetric partitioning modes, and whether the subset of the plurality partitioning mode excludes both asymmetric partitioning modes and non-square symmetric partitioning modes;
using only the subset of the partitioning modes for prediction of a portion of the video sequence;
selecting a binarization from a plurality of binarizations based on whether the subset of the plurality of partitioning modes includes the non-square symmetric partitioning modes and whether the subset of the partitioning modes includes the asymmetric partitioning modes;
binarizing at least one partitioning mode syntax element corresponding to the portion of the video sequence based on the selected binarization;
and
entropy encoding the binarized partitioning mode syntax element.

3 more elements

A method comprising:

decoding a partitioning enablement flag from a slice header in a bit stream, wherein the partitioning enablement flag indicates whether a subset of a plurality of partitioning modes used to encode a portion of the video sequence in the bit stream includes non-square symmetric partitioning modes, whether the subset of the plurality of partitioning modes includes asymmetric partitioning modes, whether the subset of the plurality partitioning mode excludes both asymmetric partitioning modes and non-square symmetric partitioning modes;
selecting a predetermined binarization from a plurality of predetermined binarizations based on whether the subset of the plurality of partitioning modes includes the non-square symmetric partitioning modes, and whether the subset of the partitioning modes includes the asymmetric partitioning modes;
debinarizing at least one partitioning mode syntax element corresponding to the portion of the video sequence based on the selected predetermined binarization;
and
entropy decoding the debinarized partitioning mode syntax element.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/015,137Filed 9 Sep 2020
Priority: 19 Jan 2012
Published: 24 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04N 19/176
The unit being an image region, e.g. an object: the region being a block, e.g. a macroblock
H04N 19/119
Characterised by the element, parameter or selection affected or controlled by the adaptive coding: adaptive subdivision aspects, e.g. subdivision…
H04N 19/13
Characterised by the element, parameter or selection affected or controlled by the adaptive coding: adaptive entropy coding, e.g. adaptive…
H04N 19/147
Data rate or code amount at the encoder output: according to rate distortion criteria

Family

Application61/588,491Us provisional application · filed 19 Jan 2012
Application13/746,063Continuation · filed 21 Jan 2013
Application17/015,137Continuation
US 10,805,617 B2Related patent
US 11,876,982 B2Related patent
US 2013/0188704 A1Published application
US 2020/0404295 A1This patent

From the US filing history. Foreign family members aren’t listed.

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