Invention Grant
- Patent Title: Video coding based on global motion compensated motion vector predictors
-
Application No.: US17276260Application Date: 2019-09-13
-
Publication No.: US11356695B2Publication Date: 2022-06-07
- Inventor: Omar Aziz Niamut , Emmanuel Thomas , Alexandre Da Silva Pratas Gabriel
- Applicant: KONINKLIJKE KPN N.V. , NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
- Applicant Address: NL Rotterdam; NL s-Gravenhage
- Assignee: KONINKLIJKE KPN N.V.,NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
- Current Assignee: KONINKLIJKE KPN N.V.,NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
- Current Assignee Address: NL Rotterdam; NL s-Gravenhage
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Priority: EP18194480 20180914
- International Application: PCT/EP2019/074476 WO 20190913
- International Announcement: WO2020/053383 WO 20200319
- Main IPC: H04N19/513
- IPC: H04N19/513 ; H04N19/176 ; H04N19/184

Abstract:
A method of determining a bitstream is described, the method including: determining a motion vector (MV) of a current block of a current video frame of a sequence of video frames comprising video data captured by a camera, the MV defining an offset of the current block relative to a prediction block, wherein part of the offset is caused by global motion in the video data if the camera is moving relative to a scene; determining motion vector predictor MW candidates for predicting the MV, the MW candidates being determined based on MVs of already encoded blocks; determining a motion compensation vector MCV for MW candidates, determining global motion compensated MW candidates based on a difference between a MW candidate and an associated MCV; selecting a compensated MW; and, determining a motion vector difference MVD based on the compensated MW and the MW; and, using entropy coding to code, the MVD, an indication of the selected compensated MW; and, conversion information for converting a MVP into a compensated MW, into a bitstream.
Public/Granted literature
- US20220030264A1 Video Coding Based on Global Motion Compensated Motion Vector Predictors Public/Granted day:2022-01-27
Information query