Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HARDWARE FRIENDLY CONSTRAINED MOTION VECTOR REFINEMENT
Document Type and Number:
WIPO Patent Application WO/2019/144930
Kind Code:
A1
Abstract:
A video codec that encodes or decodes video sequences using decoder-side motion vector refinement is provided. The video codec identifies a first motion vector and a second motion vector for coding a current block of pixels of a current video frame in the video sequence. The video codec determines whether to perform motion vector refinement for the current block of pixels based on a comparison between a linear dimension of the current block of pixels and a threshold. When motion vector refinement is performed, the video codec refines the first and second motion vectors to minimize a distortion cost and codes the current block of pixels by using the refined first and second motion vectors. When motion vector refinement is not performed, the video codec codes the current block of pixels by using the identified first and second motion vectors.

More Like This:
JP2000152242MOVING VECTOR DETECTING METHOD
JP2506469Description: Motion Vector Detection Device and Image Shake Correction Device
JP2010074347DEVICE AND METHOD FOR ENCODING MOVING IMAGE
Inventors:
CHEN CHUN-CHIA (CN)
LAI CHEN-YEN (CN)
HSU CHIH-WEI (CN)
CHUANG TZU-DER (CN)
CHEN CHING-YEH (CN)
Application Number:
PCT/CN2019/073179
Publication Date:
August 01, 2019
Filing Date:
January 25, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MEDIATEK INC (CN)
International Classes:
H04N19/513; H04N19/46; H04N19/52; H04N19/57
Domestic Patent References:
WO2017164645A22017-09-28
Foreign References:
CN102685504A2012-09-19
EP3264769A12018-01-03
CN101325710A2008-12-17
US20160286230A12016-09-29
Other References:
XU CHEN ET AL.: "Decoder-Side Motion Vector Refinement Based on Bilateral Template Matching", JOINT VIDEO EXPLORATION TEAM (JVET) OF ITU-T SG 16 WP 3- SC29/WG11, no. JVET-D0029, 1 October 2016 (2016-10-01) - 21 October 2016 (2016-10-21), Chengdu , CN, pages 1 - 3, XP030150254
See also references of EP 3744098A4
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: PRECODING CONFIGURATION

Next Patent: MOISTURE POWER GENERATOR AND PREPARATION METHOD THEREFOR