US 11,856,320 B2
Image encoder, an image sensing device, and an operating method of the image encoder
Won Seok Lee, Suwon-si (KR); Seong Wook Song, Seoul (KR); and Yun Seok Choi, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jan. 24, 2023, as Appl. No. 18/158,501.
Application 18/158,501 is a continuation of application No. 17/129,131, filed on Dec. 21, 2020, granted, now 11,563,914.
Claims priority of application No. 10-2020-0051927 (KR), filed on Apr. 29, 2020.
Prior Publication US 2023/0164292 A1, May 25, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 5/917 (2006.01); H04N 19/14 (2014.01); H04N 23/80 (2023.01)
CPC H04N 5/917 (2013.01) [H04N 19/14 (2014.11); H04N 23/80 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A method for operating an image sensing device, the method comprising:
receiving, by an image signal processor, a first frame image;
receiving, by the image signal processor, a sensing information;
determining, by the image signal processor, whether pixel data in the first frame image to be encoded being boundary pixel data;
in response to the sensing information being a first condition and the pixel data in the first frame image to be encoded being the boundary pixel data, storing, by a memory, predetermined values as reference boundary pixel data;
generating, by the image signal processor, a bitstream obtained by encoding original pixel data in the first frame image based on a difference value between the reference boundary pixel data and the original pixel data in the first frame image; and
outputting, by the image signal processor, the generated bitstream.