| CPC G06F 3/011 (2013.01) [G06T 7/20 (2013.01); G06T 7/50 (2017.01); G06T 11/00 (2013.01)] | 20 Claims |

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1. A method comprising:
collecting, by a device, a first set of sensor data for an environment;
determining a velocity of the device;
determining a volume boundary of a volume around the device based on the velocity;
detecting a physical object in the environment based on the first set of sensor data; and
in accordance with a determination that the physical object intersects the volume boundary, initiating a notification procedure.
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