US 12,238,839 B2
Sensor for detecting glare conditions
Craig Alan Casey, Coopersburg, PA (US); Yogesh Venkata Gopalan, Cambridge, MA (US); and Brent Protzman, Easton, PA (US)
Assigned to Lutron Technology Company LLC, Coopersburg, PA (US)
Filed by Lutron Technology Company LLC, Coopersburg, PA (US)
Filed on Nov. 30, 2021, as Appl. No. 17/539,002.
Claims priority of provisional application 63/119,462, filed on Nov. 30, 2020.
Prior Publication US 2022/0170320 A1, Jun. 2, 2022
Int. Cl. G06V 10/147 (2022.01); E06B 9/24 (2006.01); E06B 9/68 (2006.01); G01J 1/42 (2006.01); G06T 7/00 (2017.01); G06V 10/60 (2022.01); H05B 47/11 (2020.01); E06B 9/26 (2006.01); E06B 9/264 (2006.01); E06B 9/40 (2006.01); E06B 9/56 (2006.01); G06V 10/141 (2022.01); G09G 3/34 (2006.01); H05B 41/38 (2006.01); H05B 45/10 (2020.01); H05B 45/20 (2020.01); H05B 47/10 (2020.01); H05B 47/115 (2020.01)
CPC H05B 47/11 (2020.01) [E06B 9/24 (2013.01); G01J 1/4204 (2013.01); G06T 7/0002 (2013.01); G06V 10/147 (2022.01); G06V 10/60 (2022.01); E06B 9/26 (2013.01); E06B 9/264 (2013.01); E06B 9/40 (2013.01); E06B 9/56 (2013.01); E06B 9/68 (2013.01); E06B 2009/6809 (2013.01); E06B 2009/6818 (2013.01); E06B 2009/6827 (2013.01); E06B 2009/6845 (2013.01); E06B 2009/6872 (2013.01); G01J 2001/4266 (2013.01); G05B 2219/2653 (2013.01); G06T 2207/30232 (2013.01); G06V 10/141 (2022.01); G09G 3/3406 (2013.01); H05B 41/38 (2013.01); H05B 45/10 (2020.01); H05B 45/20 (2020.01); H05B 47/10 (2020.01); H05B 47/115 (2020.01); Y02B 20/40 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method comprising:
determining a luminance value for a first pixel in an image;
determining a profile angle for the first pixel;
determining an illuminance value for the first pixel based on the luminance value and the profile angle;
adding the illuminance value for the first pixel to a cumulative illuminance value for the image;
determining whether the cumulative illuminance value for the image is greater than or equal to a glare condition illuminance threshold;
determining whether the luminance value for the first pixel is greater than or equal to a glare condition luminance threshold;
determining that a glare condition exists based on determining that the cumulative illuminance value for the image is greater than or equal to the glare condition illuminance threshold or that the luminance value for the first pixel is greater than or equal to the glare condition luminance threshold; and
causing a position of a covering material for a motorized window treatment to be adjusted to remove the glare condition based on the determination of the glare condition.