US 12,075,160 B2
Image signal processor and image processing device
Ho June Leu, Hwaseong-si (KR); Joong Sik Kim, Seoul (KR); Dong Yeob Shin, Seoul (KR); Yeong Min Lee, Hwaseong-si (KR); and Hoon Jo, Hwaseong-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Mar. 14, 2022, as Appl. No. 17/693,553.
Claims priority of application No. 10-2021-0067360 (KR), filed on May 26, 2021; and application No. 10-2021-0093600 (KR), filed on Jul. 16, 2021.
Prior Publication US 2022/0385817 A1, Dec. 1, 2022
Int. Cl. H04N 23/68 (2023.01); G06T 5/50 (2006.01); G06T 7/11 (2017.01); G06T 7/194 (2017.01); G06T 7/246 (2017.01)
CPC H04N 23/683 (2023.01) [G06T 5/50 (2013.01); G06T 7/11 (2017.01); G06T 7/194 (2017.01); G06T 7/248 (2017.01); G06T 2207/20084 (2013.01); G06T 2207/30201 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An image processing device, comprising:
an image signal processor for processing a raw image received from a camera; and
a memory for storing a previous frame of the raw image and an intermediate image generated by the processing,
wherein the image signal processor:
estimates an initial global motion vector between the previous frame and a current frame,
receives focus region information in the raw image,
divides the raw image into a foreground (FG) region and a background (BG) region based on the focus region information,
generates a final global motion vector by divisionally updating the initial global motion vector based on the FG region and the BG region,
performs motion compensation by applying the final global motion vector to the previous frame, and
outputs a final image by blending the motion-compensated previous frame with the current frame.