US 11,928,892 B2
Motion recognition apparatus using ToF sensor and method for operating the same
Jae Hyung Jang, Icheon-si (KR)
Assigned to SK HYNIX INC., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Jun. 7, 2021, as Appl. No. 17/340,854.
Claims priority of application No. 10-2020-0089572 (KR), filed on Jul. 20, 2020.
Prior Publication US 2022/0019777 A1, Jan. 20, 2022
Int. Cl. G06K 9/00 (2022.01); G06N 3/04 (2023.01); G06T 7/55 (2017.01); G06V 40/20 (2022.01); H04N 5/225 (2006.01); H04N 23/56 (2023.01)
CPC G06V 40/20 (2022.01) [G06N 3/04 (2013.01); G06T 7/55 (2017.01); H04N 23/56 (2023.01); G06T 2207/10028 (2013.01); G06T 2207/10048 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for recognizing a motion or gesture of an object, comprising:
operating an optical sensor device to capture light reflected from the object under illumination by light emitted toward the object;
generating, by comparing the emitted light to the reflected light, a depth image including distance information indicating a distance between the optical sensor device and the object;
generating, based on the light reflected from the object, an infrared image including infrared image information associated with the object; and
determining the motion of the object based on at least one of the depth image and the infrared image wherein the depth image includes a first depth image and a second depth image, and
wherein the generating of the depth image comprises:
generating the first depth image by operating image sensor pixels that capture the light reflected from the object, according to a first operation mode; and
generating the second depth image by operating the image sensor pixels according to a second operation mode, in a case where the first depth image satisfies a first mode transition condition associated with a recognition of an identity of the object.