US 11,792,527 B2
Sensor system, image processing apparatus, image processing method, and program
Makoto Koizumi, Tokyo (JP); and Jun Horie, Tokyo (JP)
Assigned to Sony Interactive Entertainment Inc., Tokyo (JP)
Appl. No. 17/635,553
Filed by Sony Interactive Entertainment Inc., Tokyo (JP)
PCT Filed Aug. 28, 2019, PCT No. PCT/JP2019/033707
§ 371(c)(1), (2) Date Feb. 15, 2022,
PCT Pub. No. WO2021/038750, PCT Pub. Date Mar. 4, 2021.
Prior Publication US 2022/0337732 A1, Oct. 20, 2022
Int. Cl. H04N 23/71 (2023.01); H04N 23/74 (2023.01); H04N 25/47 (2023.01); H04N 25/707 (2023.01)
CPC H04N 23/71 (2023.01) [H04N 23/74 (2023.01); H04N 25/47 (2023.01); H04N 25/707 (2023.01)] 4 Claims
OG exemplary drawing
 
1. A sensor system comprising:
a light source that applies, to an imaging target, light whose light amount gradually increases or gradually decreases;
an event-driven type sensor that generates an event signal by detecting a fluctuation of reflection light from the imaging target after application of the light whose light amount gradually increases or gradually decreases is started; and
a gradation calculation unit that calculates a gradation of the imaging target on a basis of an elapsed period of time from the start of the application of the light whose light amount gradually increases or gradually decreases to the generation of the event signal, wherein:
the light source alternately applies the light whose light amount gradually increases or gradually decreases and light whose light amount is fixed, and
the gradation calculation unit calculates the gradation with use of the event signal generated by the event-driven type sensor during the application of the light whose light amount gradually increases or gradually decreases.