US 12,405,358 B1
Multipath interference detection
Venkata Subrahmanyam Chandra Sekhar Chebiyyam, San Francisco, CA (US); Yongzhe Chen, San Jose, CA (US); and Subasingha Shaminda Subasingha, San Ramon, CA (US)
Assigned to Zoox, Inc., Foster City, CA (US)
Filed by Zoox, Inc., Foster City, CA (US)
Filed on Apr. 8, 2021, as Appl. No. 17/225,799.
Int. Cl. G01S 7/487 (2006.01); G01S 17/931 (2020.01); G06T 7/44 (2017.01)
CPC G01S 7/487 (2013.01) [G01S 17/931 (2020.01); G06T 7/44 (2017.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
one or more processors; and
one or more non-transitory computer-readable media storing instructions executable by the one or more processors, wherein the instructions, when executed, cause the system to perform operations comprising:
receiving sensor data comprising phase data and intensity data from a time-of-flight sensor associated with a vehicle in an environment;
determining a first region of the intensity data based at least in part on a first intensity value of a first pixel and a second intensity value of a second pixel;
determining, for a second region of the phase data corresponding to the first region of the intensity data, that a difference between a first phase value of associated with the second region and a second phase value associated with the second region meets or exceeds a threshold difference;
determining, based at least in part on the difference, that at least one of a first phase element associated with the first phase value or a second phase element associated with the second phase value is a candidate element associated with multipath interference; and
controlling the vehicle based at least in part on the candidate element being associated with multipath interference.