US 12,155,811 B2
Dust measurement device
Chaedeok Lee, Seoul (KR); Myungwon Kim, Seoul (KR); Jongmyoung Park, Seoul (KR); Sunghyun Yi, Seoul (KR); Hyunoh Kang, Seoul (KR); and Woodeok Joo, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/601,491
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Jun. 11, 2019, PCT No. PCT/KR2019/006993
§ 371(c)(1), (2) Date Oct. 5, 2021,
PCT Pub. No. WO2020/251069, PCT Pub. Date Dec. 17, 2020.
Prior Publication US 2022/0166964 A1, May 26, 2022
Int. Cl. H04N 13/25 (2018.01); G06T 7/521 (2017.01); G06T 7/70 (2017.01); G06T 11/00 (2006.01); H04N 13/254 (2018.01); H04N 13/257 (2018.01); H04N 23/11 (2023.01); G01N 15/00 (2006.01); G01N 15/075 (2024.01)
CPC H04N 13/25 (2018.05) [G06T 7/521 (2017.01); G06T 7/70 (2017.01); G06T 11/00 (2013.01); H04N 13/254 (2018.05); H04N 13/257 (2018.05); H04N 23/11 (2023.01); G01N 2015/0046 (2013.01); G01N 15/075 (2024.01); G06T 2207/10012 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/10048 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An apparatus for measuring dust, comprising:
a stereo vision camera including a first camera obtaining a true color image and a second camera obtaining an infrared image;
a controller configured to create a fine dust distribution image based on a light amount ratio of a light amount obtained from a first pixel array of the first camera to a light amount obtained from a second pixel array of the second camera; and
a display device configured to output the fine dust distribution image,
wherein the controller obtains distance information of a subject via a stereo vision operation between the true color image and the infrared image and creates the fine dust distribution image to differentiate at least one of a brightness or a chroma in response to the distance information.