	US 12,086,961 B2
	Method and apparatus for adaptive hybrid fusion
Mojtaba Rahmati, San Diego, CA (US); Dongwoon Bai, San Diego, CA (US); and Jungwon Lee, San Diego, CA (US)
Assigned to Samsung Electronics Co., Ltd, (KR)
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on Apr. 29, 2021, as Appl. No. 17/244,481.
Claims priority of provisional application 63/124,247, filed on Dec. 11, 2020.
Prior Publication US 2022/0188985 A1, Jun. 16, 2022
Int. Cl. G06K 9/00 (2022.01); G06T 5/70 (2024.01); H04N 25/60 (2023.01)

CPC G06T 5/70 (2024.01) [H04N 25/60 (2023.01); G06T 2207/20024 (2013.01); G06T 2207/20221 (2013.01)]

18 Claims

1. A method, comprising

receiving an input frame;

performing high frequency noise reduction (HFNR) on the received input frame to obtain an HFNR clean frame;

performing low frequency noise reduction (LFNR) on the received input frame to obtain an LFNR clean frame;

obtaining a hybrid fusion weight using edge strength information of the HFRN clean frame; and

obtaining a hybrid denoised clean frame by fusing the HFNR clean frame and the LFNR clean frame, wherein the fusing selects high frequency bands from the HFNR clean frame and, based on the hybrid fusion weight, selects low frequency bands from the LFNR clean frame in flat regions and from the HFNR clean frame in remaining non-flat regions.