US 12,003,839 B2
Imaging apparatus using ghost imaging
Masato Gomi, Shizuoka (JP); Shintaro Sugimoto, Shizuoka (JP); Yuta Haruse, Shizuoka (JP); and Teruaki Torii, Shizuoka (JP)
Assigned to KOITO MANUFACTURING CO., LTD., Tokyo (JP)
Filed by KOITO MANUFACTURING CO., LTD., Tokyo (JP)
Filed on Oct. 20, 2021, as Appl. No. 17/506,277.
Application 17/506,277 is a continuation of application No. PCT/JP2020/017166, filed on Apr. 21, 2020.
Claims priority of application No. 2019-081026 (JP), filed on Apr. 22, 2019; and application No. 2019-081027 (JP), filed on Apr. 22, 2019.
Prior Publication US 2022/0038625 A1, Feb. 3, 2022
Int. Cl. H04N 23/56 (2023.01); G01S 17/931 (2020.01); G02B 26/08 (2006.01); G03B 15/05 (2021.01); G06T 5/70 (2024.01); G06T 7/521 (2017.01); G06V 10/141 (2022.01); G06V 10/143 (2022.01); G06V 10/145 (2022.01); G06V 20/56 (2022.01); H04N 23/80 (2023.01)
CPC H04N 23/56 (2023.01) [G01S 17/931 (2020.01); G02B 26/0833 (2013.01); G03B 15/05 (2013.01); G06T 5/70 (2024.01); G06T 7/521 (2017.01); G06V 10/141 (2022.01); G06V 10/143 (2022.01); G06V 10/145 (2022.01); G06V 20/56 (2022.01); H04N 23/80 (2023.01); G06T 2207/20182 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An imaging apparatus comprising:
an illumination apparatus structured to irradiate an object with first reference light having a first intensity distribution Ir(x,y) and second reference light having a second intensity distribution I r(x,y) that has a complementary (x,y) relation with the first intensity distribution Ir(x,y), wherein r (=1, 2, . . . M) represents r-th irradiation;
a photodetector structured to measure reflected light from the object; and
a processing device structured to perform first correlation calculation represented by expression (1) based on a result of irradiation of the first reference light and second correlation calculation represented by expression (2) based on a result of irradiation of the second reference light, wherein br represents a value of a detection intensity measured when the object is irradiated with the first reference light having the first intensity distribution Ir(x,y), b r represents a value of a detection intensity measured when the object is irradiated with the second reference light having the second intensity distribution I r(x,y), and M represents a number of irradiations

OG Complex Work Unit Math