Patent · US Active

Multi-pass decoder-side motion vector refinement

US12113987B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Zhi Zhang · Munich, DE
Han Huang · San Diego, US
Chun-Chi Chen · San Diego, US
Yan Zhang · San Diego, US
Vadim Seregin · San Diego, US
Marta Karczewicz · San Diego, US

Key dates

Filing date	Dec 20, 2021
Grant date	Oct 8, 2024
Priority date	—
Expiry date	Dec 20, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/96
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An example device includes memory configured to store video data and one or more processors coupled to the memory. The one or more processors are configured to apply a multi-pass DMVR to a motion vector for a block of the video data to determine at least one refined motion vector and decode the block based on the at least one refined motion vector. The multi-pass DMVR includes a block-based first pass, a sub-block-based second pass, and a sub-block-based third pass.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.