US 11,457,233 B2Granted

Motion information storage for video coding and signaling

AssigneeARRIS Enterprises LLC

InventorsYue Yu, Krit Panusopone, Limin Wang, Seungwook Hong

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Abstract

A method for inter-coding video in which encoder and decoder memory requirements associated with storage of motion information related to collocated coding units is reduced. In the method motion information related to only a single or reduced set of collocated coding unit(s) may be stored at the encoder and decoder. In operation, if the encoder determines that motion information for a current coding unit should replace a currently stored motion information for currently stored motion information for the collocated coding unit, then the encoder can replace the motion information at the encoder and transmit an indicator with the current coding unit to signal to the decoder that currently stored motion information currently should be updated or replaced with the motion information associated with the current coding unit.

Claims6

Dependent claims

A method of inter-decoding comprising:

(a) receiving a first coding unit of a first picture from a bitstream in a first portion of memory, where said first coding unit includes a respective first NAL unit header, where said first NAL unit header includes a first indicator indicating it is part of a single collocated picture;
(b) receiving a second coding unit of a second picture from said bitstream in a second portion of said memory, where said second coding unit includes a respective second NAL unit header, where said second NAL unit header includes a second indicator indicating it is part of said single collocated picture;
(c) determining whether said first coding unit and said second coding unit are parts of said single collocated picture based upon information contained in at least one of said first NAL unit header and said second NAL unit header;
(d) decoding said second coding unit using motion information associated with said first coding unit if said first coding unit and said second coding unit are parts of said single collocated picture.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/383,550Filed 12 Apr 2019 · us provisional application
Priority: 12 Apr 2018
Published: US 2020/0329246 A115 Oct 2020
Granted: 27 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

H04N 19/52
By encoding: by predictive encoding
H04N 19/105
Selection of coding mode or of prediction mode: selection of the reference unit for prediction within a chosen coding or prediction mode, e.g.…
H04N 19/109
Selection of coding mode or of prediction mode: among a plurality of temporal predictive coding modes
H04N 19/119
Characterised by the element, parameter or selection affected or controlled by the adaptive coding: adaptive subdivision aspects, e.g. subdivision…

Family

Application62/656,743Us provisional application · filed 12 Apr 2018
Application62/656,763Us provisional application · filed 12 Apr 2018
Application62/660,883Us provisional application · filed 20 Apr 2018
Application62/678,864Us provisional application · filed 31 May 2018
US 2020/0329246 A1Pre-grant publication · published 15 Oct 2020
US 2021/0029364 A9Pre-grant publication · published 28 Jan 2021
US 11,457,233 B2This patent

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