The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 21, 2019

Filed:

Dec. 06, 2017
Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventors:

Min-Hao Chiu, Hsinchu, TW;

Chia-yun Cheng, Hsinchu, TW;

Yung-Chang Chang, Hsinchu, TW;

Assignee:

MEDIATEK INC., Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/513 (2014.01); H04N 19/55 (2014.01); H04N 19/52 (2014.01); H04N 19/573 (2014.01);
U.S. Cl.
CPC ...
H04N 19/521 (2014.11); H04N 19/52 (2014.11); H04N 19/55 (2014.11); H04N 19/573 (2014.11);
Abstract

A method and apparatus for video encoding or decoding used by an AVS2 (Second Generation of Audio Video Coding Standard) video encoder or decoder respectively are disclosed. According to this method, first motion vectors associated with spatial neighboring blocks of a current block are determined. For each spatial neighboring block, a value of 1 is assigned to a first BlockDistance associated with the spatial neighboring block if a corresponding first reference picture is a G picture or GB picture. Motion vector predictor candidates are derived from the first motion vectors by scaling each first motion vector according to a corresponding first BlockDistance and a current BlockDistance. A final motion vector predictor is determined among the motion vector predictor candidates. The current motion vector is encoded or decoded using the final motion vector predictor


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