US 2026/0254990 A1 · MOTION VECTOR CODING WITH INPUT MOTION VECTOR DATA

Abstract

Systems, methods, and instrumentalities are disclosed for performing motion compensation with long-term history-based motion vector predictor candidate(s). A device configured for performing such motion compensation may include a processor. The processor may be configured to obtain a long-term motion vector predictor candidate. The processor may also be configured to add the long-term motion vector predictor candidate to a history-based motion vector prediction (HMVP) list for a current block. The processor may also be configured to decode the current block using the HMVP list having the long-term motion vector prediction candidate.

Claims20

Dependent claims

A video decoding device, the device comprising:

a processor configured to:
determine that a current coding tree unit (CTU) is located at a beginning of a CTU row;
obtain initialization motion information associated with the CTU row;
initialize a history-based motion vector prediction (HMVP) table with at least one motion vector candidate derived from the initialization motion information;
and
decode the current CTU using the initialized HMVP table.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

19/644,513Filed 10 Apr 2026

Priority

EP 21306393.65 Oct 2021

Published

27 Aug 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

H04N 19/58
Motion estimation or motion compensation: motion compensation with long-term prediction, i.e. the reference frame for a current frame not being…
H04N 19/52
By encoding: by predictive encoding
H04N 19/70
Methods or arrangements for coding, decoding, compressing or decompressing digital video signals: characterised by syntax aspects related to video…
H04N
Pictorial communication

Motion vector coding with input motion vector data

Life of this patent

Motion vector coding with input motion vector data

Life of this patent

Abstract

Claims20