US 12,279,051 B2
Image acquisition apparatus providing white balance function and electronic apparatus including the same
Woo-Shik Kim, Yongin-si (KR); and Inhwan Ryu, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jun. 2, 2022, as Appl. No. 17/830,835.
Claims priority of application No. 10-2021-0128352 (KR), filed on Sep. 28, 2021.
Prior Publication US 2023/0099629 A1, Mar. 30, 2023
Int. Cl. H04N 23/88 (2023.01); G06T 5/00 (2024.01); H04N 9/64 (2023.01); H04N 9/77 (2006.01); H04N 23/45 (2023.01)
CPC H04N 23/88 (2023.01) [G06T 5/00 (2013.01); H04N 9/646 (2013.01); H04N 9/77 (2013.01); H04N 23/45 (2023.01); G06T 2207/10024 (2013.01); G06T 2207/20024 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An image acquisition apparatus comprising:
an image sensor; and
a processor,
wherein the image sensor comprises:
a first image sensor configured to obtain a first image; and
a second image sensor configured to obtain a second image,
wherein the first image sensor comprises:
a first sensor layer in which a plurality of first sensing elements are provided; and
a first pixel array having a color filter provided on the first sensor layer and including red filters, green filters, and blue filters that are alternately provided,
wherein the second image sensor comprises:
a second sensor layer in which a plurality of second sensing elements are provided; and
a second pixel array having a spectral filter in which a filter group comprising a plurality of unit filters having different transmission wavelength bands is repeatedly provided, the spectral filter being provided on the second sensor layer, and
wherein the processor is configured to:
obtain an image by matching the first image and the second image;
obtain a basis based on a surrounding environment in which the image acquisition apparatus is provided;
estimate illumination information by performing spectral decomposition on the second image, obtained by the second image sensor, using the obtained basis; and
perform color conversion on the image, obtained by matching the first image and the second image, based on the estimated illumination information.