	US 11,871,024 B2
	Methods and apparatus of motion vector rounding, clipping and storage for
Xiaoyu Xiu, San Diego, CA (US); Yi-Wen Chen, San Diego, CA (US); and Xianglin Wang, San Diego, CA (US)
Assigned to Beijing Dajia Internet Information Technology Co., Ltd., Beijing (CN)
Filed by BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD., Beijing (CN)
Filed on Aug. 12, 2021, as Appl. No. 17/401,140.
Application 17/401,140 is a continuation of application No. PCT/US2020/018920, filed on Feb. 19, 2020.
Claims priority of provisional application 62/816,025, filed on Mar. 8, 2019.
Claims priority of provisional application 62/808,276, filed on Feb. 20, 2019.
Prior Publication US 2021/0377558 A1, Dec. 2, 2021
Int. Cl. H04N 19/513 (2014.01); H04N 19/159 (2014.01); H04N 19/132 (2014.01); H04N 19/189 (2014.01); G06F 5/01 (2006.01); H04N 19/176 (2014.01); H04N 19/107 (2014.01); H04N 19/423 (2014.01); H04N 19/54 (2014.01); H04N 19/139 (2014.01)

CPC H04N 19/513 (2014.11) [G06F 5/01 (2013.01); H04N 19/107 (2014.11); H04N 19/132 (2014.11); H04N 19/139 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/189 (2014.11); H04N 19/423 (2014.11); H04N 19/54 (2014.11)]

9 Claims

1. A method for video decoding, comprising:

determining an inter prediction process; and

in response to determining the inter prediction process is one of derivation processes for advance motion vector prediction (AMVP) mode, alternative temporal motion vector prediction (ATMVP) mode, merge mode with motion vector differences (MMVD) mode, decoder-side motion vector derivation (DMVR) mode, affine inheritance mode or explicit affine mode, performing a motion vector (MV) clipping operation to at least one MV in the inter prediction process according to a first MV clipping mode,

wherein an upper limit of the first MV clipping mode is 2¹⁷−1 and the lower limit of the first MV clipping mode is −2¹⁷.