CPC H04N 13/366 (2018.05) [G06V 10/143 (2022.01); G06V 10/761 (2022.01); G06V 40/171 (2022.01); G06V 40/193 (2022.01); G06T 2207/10048 (2013.01); G06V 2201/07 (2022.01)] | 7 Claims |
1. A tracking device, including:
an infrared (IR) light emitter configured to emit a near-infrared ray;
a camera configured to acquire a visible captured image and an IR captured image corresponding to the emitted near-infrared ray, wherein each of the visible captured image and the IR captured image includes a target; and
circuitry configured to:
calculate a distance value between the target and the IR light emitter;
control a light emission amount of the IR light emitter on a basis of the distance value;
perform first tracking of a viewpoint of the target on a basis of a face frame of the target in the visible captured image in accordance with the calculated distance value larger than a first threshold value; and
perform, instead of the first tracking, second tracking of the viewpoint of the target in accordance with the calculated distance value smaller than the first threshold value, wherein the second tracking includes detecting a center of gravity of at least one of a pupil or an iris in the IR captured image on the basis of the face frame.
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