US 11,902,501 B2
Dynamic illumination for eye-tracking
Heath Feather, Cupertino, CA (US); Randal P. Goldberg, San Mateo, CA (US); and Alexandre V. Matveev, Santa Clara, CA (US)
Assigned to Intuitive Surgical Operations, Inc., Sunnyvale, CA (US)
Filed by Intuitive Surgical Operations, Inc., Sunnyvale, CA (US)
Filed on Sep. 15, 2022, as Appl. No. 17/945,854.
Application 17/945,854 is a division of application No. 17/271,522, granted, now 11,483,545, previously published as PCT/US2019/048628, filed on Aug. 28, 2019.
Claims priority of provisional application 62/724,346, filed on Aug. 29, 2018.
Prior Publication US 2023/0061334 A1, Mar. 2, 2023
Int. Cl. H04N 13/383 (2018.01); G02B 30/35 (2020.01); G02B 1/11 (2015.01); G02B 27/00 (2006.01); H04N 23/56 (2023.01)
CPC H04N 13/383 (2018.05) [G02B 1/11 (2013.01); G02B 27/0093 (2013.01); G02B 30/35 (2020.01); H04N 23/56 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
generating, by a controller, a first bitmap representing reflections in a first image frame captured by an image capture unit within an image viewer;
generating, by the controller, a second bitmap representing reflections in a second image frame captured by the image capture unit within the image viewer;
subtracting, by the controller, the second bitmap from the first bitmap to obtain a new bitmap; and
stopping, by the controller, light output from one of a plurality of light sources within the image viewer if all bits in the new bitmap have a same state.