WO2020256601A3 - Method and apparatus of picture-level signaling for bidirectional optical flow and decoder side motion vector refinement - Google Patents

Method and apparatus of picture-level signaling for bidirectional optical flow and decoder side motion vector refinement Download PDF

Info

Publication number
WO2020256601A3
WO2020256601A3 PCT/RU2020/050270 RU2020050270W WO2020256601A3 WO 2020256601 A3 WO2020256601 A3 WO 2020256601A3 RU 2020050270 W RU2020050270 W RU 2020050270W WO 2020256601 A3 WO2020256601 A3 WO 2020256601A3
Authority
WO
WIPO (PCT)
Prior art keywords
picture
motion vector
optical flow
level signaling
decoder side
Prior art date
Application number
PCT/RU2020/050270
Other languages
French (fr)
Other versions
WO2020256601A2 (en
Inventor
Alexey Konstantinovich FILIPPOV
Vasily Alexeevich RUFITSKIY
Haitao Yang
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2020256601A2 publication Critical patent/WO2020256601A2/en
Publication of WO2020256601A3 publication Critical patent/WO2020256601A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/537—Motion estimation other than block-based
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

A method for encoding a video sequence into a bitstream using motion refinement video coding tools for bi-prediction, wherein the method comprises determining whether a plurality of slices pertaining to one or more pictures comprises at least one slice that allows inter bi-prediction,and inserting information related to the motion refinement video coding tools for bi-predictioninto the bitstream in case at least one condition is satisfied, wherein the at least one condition comprises the presence of at least one slice of the plurality of slices that allows inter bi-prediction.
PCT/RU2020/050270 2019-10-03 2020-10-05 Method and apparatus of picture-level signaling for bidirectional optical flow and decoder side motion vector refinement WO2020256601A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962910441P 2019-10-03 2019-10-03
US62/910,441 2019-10-03

Publications (2)

Publication Number Publication Date
WO2020256601A2 WO2020256601A2 (en) 2020-12-24
WO2020256601A3 true WO2020256601A3 (en) 2021-03-11

Family

ID=74040946

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2020/050270 WO2020256601A2 (en) 2019-10-03 2020-10-05 Method and apparatus of picture-level signaling for bidirectional optical flow and decoder side motion vector refinement

Country Status (1)

Country Link
WO (1) WO2020256601A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160286232A1 (en) * 2015-03-27 2016-09-29 Qualcomm Incorporated Deriving motion information for sub-blocks in video coding
WO2018113658A1 (en) * 2016-12-22 2018-06-28 Mediatek Inc. Method and apparatus of motion refinement for video coding
WO2018129172A1 (en) * 2017-01-04 2018-07-12 Qualcomm Incorporated Motion vector reconstructions for bi-directional optical flow (bio)
US20180262773A1 (en) * 2017-03-13 2018-09-13 Qualcomm Incorporated Inter prediction refinement based on bi-directional optical flow (bio)

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160286232A1 (en) * 2015-03-27 2016-09-29 Qualcomm Incorporated Deriving motion information for sub-blocks in video coding
WO2018113658A1 (en) * 2016-12-22 2018-06-28 Mediatek Inc. Method and apparatus of motion refinement for video coding
WO2018129172A1 (en) * 2017-01-04 2018-07-12 Qualcomm Incorporated Motion vector reconstructions for bi-directional optical flow (bio)
US20180262773A1 (en) * 2017-03-13 2018-09-13 Qualcomm Incorporated Inter prediction refinement based on bi-directional optical flow (bio)

Also Published As

Publication number Publication date
WO2020256601A2 (en) 2020-12-24

Similar Documents

Publication Publication Date Title
EP4262208A3 (en) Constrained motion vector derivation for long-term reference pictures in video coding
PH12018501883A1 (en) Determining prediction parameters for non-square blocks in video coding
WO2016205693A3 (en) Intra prediction and intra mode coding
WO2020016735A3 (en) Block size restriction for video coding
WO2007081926A3 (en) Methods and apparatuses for multi-view video coding
GB2574733A (en) Improved video bitstream coding
WO2014047351A3 (en) Selection of pictures for disparity vector derivation
MY181830A (en) Image decoding method, image coding method, image decoding apparatus, image coding apparatus, and image coding and decoding apparatus
WO2008047303A3 (en) System and method for implementing efficient decoded buffer management in multi-view video coding
MX2021003054A (en) Method, apparatus and system for encodng and decoding a tree of blocks of video samples.
EP3979646A3 (en) An apparatus, a method and a computer program for video coding and decoding
EP4029262A4 (en) Prediction type signaling in video coding
WO2005006256A3 (en) Method and apparatus for coding motion information
MX2023006113A (en) Video coding method and device, video decoding method and device.
MX2022003220A (en) Methods and apparatus for prediction refinement with optical flow.
EP4277277A3 (en) Methods and apparatus of video coding for triangle prediction
WO2017188784A3 (en) Video signal encoding/decoding method and apparatus
WO2020256601A3 (en) Method and apparatus of picture-level signaling for bidirectional optical flow and decoder side motion vector refinement
WO2013186543A3 (en) Method of coding video transmissions
MX2022012250A (en) Methods and apparatuses for signaling of syntax elements in video coding.
MX2022007502A (en) Techniques for implementing a decoding order within a coded picture.
EP3975563A4 (en) Inter prediction in video or image coding system
EP2667614A4 (en) Motion picture coding device and motion picture coding method
MX2022000905A (en) Prediction mode signaling in video coding.
MX2021002201A (en) Methods and apparatus of video coding using subblock-based temporal motion vector prediction.

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20825618

Country of ref document: EP

Kind code of ref document: A2